Stuttgarter Beiträge zur Naturkunde Serie A (Biologie) Herausgeber: Staatliches Museum für Naturkunde, Rosenstein 1, D-70191 Stuttgart Stuttgarter Beitr. Naturk. Nr. 648 | 95.,8 Abb. Stuttgart, 4. VI. 2003 Galeruca (Galemira n. subgen.) subcostata n. sp. from Pakistan (Coleoptera: Chrysomelidae)! Ron BEENEN Abstract During revisional study of the genus Galeruca it became clear that Galeruca sexcostata and some other species from the Himalayas and the Tibetan plateau have to be attributed to a new subgenus, Galemira n.subgen., described herein. Apart from the type species of the subge- nus, G. sexcostata, the species G. himalayensis, G. barovskyi and G. subcostata n. sp. are in- cluded in this new subgenus. A key is presented, including also G. comaica and G. gyangzea probably belonging to this subgenus too. Lectotypes are designated for G. himalayensis and G. sexcostata. Keywords: Galeruca, Galemira, Chrysomelidae, Pakistan. Zusammenfassung Während Revisionsarbeiten innerhalb der Gattung Galeruca wurde deutlich, dass Galeru- ca sexcostata und einige andere Arten aus dem Himalaya und dem Plateau von Tibet einer neuen Untergattung zugeordnet werden müssen. Galemira n. subgen. wird hier beschrieben. Zusätzlich zu der Typusart der Untergattung, G. sexcostata, werden die Arten G. himalayen- sis, G. barovskyi und G. subcostata n.sp. in diese Untergattung gestellt. Ein Bestimmungs- schlüssel wird erstellt, der auch G. comaica und G. gyangzea umfasst, die wahrscheinlich ebenfalls in diese Untergattung gehören. Für G. himalayensis und G. sexcostata werden Lec- totypen festgelegt. Contents 18 Introdluctien.: u se eV RL ie in aly Le tn Ver Bst Ga ER 2 2: "TaXOnONI er a a A a as PMCS Peas 2 AltGalerucalGaleniiran:subgen. meer ee er en 2 2.24 Galernea(Galemira) subcosiatan. Sp... ee nee an nen 3 2 32.Guleruca(Galemıra) hımalayensis Jacoby18%6 2: na au anne 5 2.4 Galeruca (Galemira) sexcostata Jacoby, 1904 ....... cece eee eee cece eens 7 3 Key to the species of the subgenus Galemira n.subgen. ..........-.00 cesses eee 8 4 Distributional data of the species of the subgenus Galemira n.subgen. ............. 9 BmwReeferengese Sits i BEATA Se tare panes, Aster N sited Beato 4 ies Senta eect oy a teal wh ate 9 ! Revisional notes on Galeruca 3 2 STUTTGARTER BEITRAGE ZUR NATURKUNDE Ser. A, Nr. 648 1 Introduction Recently WOLFGANG SCHAWALLER of the Staatliches Museum ftir Naturkunde (Stuttgart) provided me with unidentified specimens of the chrysomelid genus Galeruca. Among them were two specimens from Pakistan of a yet unknown species. A study of these specimens and the most similar species, revealed that they have to be attributed to a yet not recognised subgenus of Galeruca, Galemira n. sub- gen., described herein. The syntypes of Galeruca himalayensis Jacoby and Galeruca sexcostata Jacoby were reexamined; lectotypes and paralectotypes have been desig- nated and some additional information on these species is presented. The species of the new subgenus are included in a key. Acronyms BMNH Natural History Museum, London, United Kingdom RBCN Collection Ron BEENEN, Nieuwegein, The Netherlands SMNS _ Staatliches Museum für Naturkunde, Stuttgart, Germany Acknowledgements SHARON SHUTE (London) and Hans Durrets (Amsterdam) provided the possibilities to study the types of Galeruca himalayensis and Galeruca sexcostata. WOLFGANG SCHAWALLER (Stuttgart) kindly let me study some unidentified Galeruca specimens among which the spec- imens of Galeruca subcostata n. sp. Finally, my friends Uwe Heınıc (Berlin) and Dieter Er- BER (Giessen) made specimens available for this study. 2 Taxonomy 2.1 Galeruca (Galemira n.subgen.) Type species: Galeruca sexcostata Jacoby, 1904; gender: female. Description Metasternum short. Apterous. Elytra short, not completely covering the ab- domen. Flattened expansion of elytral margin hardly depressed. Diagnosis The new subgenus shows much similarity to the subgenus Galerima Reitter, 1903. The two taxa can be separated by some characters of the elytra. In Galemira n. sub- gen. the lateral groove is very shallow at the level of the humerus and the inner por- tion of the apex of the elytron is obliquely truncate. In Galerima the lateral groove is deep at the level of the humerus and the apex of the elytron is broadly rounded. The species of Galemira n.subgen. occur in the mountains of northern India and Pakistan (Kashmir, western Himalayas) and the plateau of Tibet. The species of Ga- lerima occur in the Pyrenees. Etymology The name “Galemira” is a combination of “Galeruca” and “Mira”. “Mira” means in San- skrit, among many other meanings, “the mountain”, referring in this case to the western Hi- malayas in Pakistan, where the types of G. subcostata n.sp. have been found. Composition Apart from the type species the following species are included in the subgenus Galemira n. subgen.: Galeruca subcostata n.sp., Galeruca himalayensis Jacoby, 1896 BEENEN, GALERUCA (GALEMIRA N. SUBGEN.) FROM PAKISTAN 3 and Galeruca barovskyi Jacobson, 1925. Furthermore Galeruca comaica Chen & Jiang, 1981 (CHEN & JIANG 1981) and Galeruca gyangzea Chen & Jiang, 1987 (CHEN & JIANG 1987) are supposed to belong to this subgenus. It is uncertain whether they are correctly attributed to this subgenus; only the study of the relevant types can clarify this question. Despite several efforts it proved to be impossible to have these specimens made available for this study. 2.2 Galeruca (Galemira) subcostata n.sp. Material Holotype, d (SMNS): “PAKISTAN: Shogran, Kagan Valley, 28-30. VII.1998, leg. J. REJ- sek / TYPUS, G. subcostata, R. BEENEN det 02”. Paratype, d (RBCN): “PAKISTAN: Shogran, Kagan Valley, 28-30. VII. 1998, leg. J. REJ- sek / PARATYPUS, G. subcostata, R. BEENEN det 02”. Etymology The name “subcostata” refers to the weakly developed costae on the elytra in this new species. Description Holotype, d. Length: 9.6 mm (total); 7.6 mm (from the anterior border of the eyes to the tip of the elytra). Greatest width across both elytra: 4.85 mm. Without wings (apterous). General colour black; elytra slightly greasy shining bicoloured. Outer margins and a small area near the scutellum yellow. Oblong; elytra flattened and broad, with vestiges of costae, covering the abdomen partly; 2 abdominal ter- gites visible. Habitus as in Fig. 1. Head: maximal width of head across the eyes: 2.15 mm. Vertex sparsely punctate. Length of hairs a bit longer than the diameter of the punctures they stand in. Vertex with a fine and regular median longitudinal line. This line is situated in a deep de- pression posterior to the frontal tubercles. Frontal tubercles well defined; impunc- tate. Antennae strong: segments 3 and 4 notably dilated. Antennal segments 1 to 6 shiny; ventral and dorsal part of segment 7 pubescent; apical part produced; seg- ments 8 and 9 with dorsal part dull due to pubescence, ventral part shining; segment 10 almost completely dull, only a small line on ventral part shining; segment 11 com- pletely dull due to pubescence. Labrum with seven punctures of which the large bristles might have been rubbed of (see description of paratype). Apical margin mar- ginate. Maxillary palps with apical segment cone shaped. Pronotum: maximal width: 3.2 mm (in middle); maximal length in the middle: 1.6 mm. Front border arched. Front corners thickened. Front angles slightly depressed. Lateral borders rounded with lateral edges partly serrate. Base of pronotum straight; outer parts slightly curved inward. Surface of lateral margins depressed and rugose. Upper surface uneven; lateral depressions a bit stronger than the longitudinal de- pression in the middle and the transverse depression at the base. Punctures strong, evenly spread. No hairs on the pronotum. Surface of the pronotum black, shining. Scutellum: broadly rounded. Surface with a longitudinal depression and only few punctures. Black, shining. Elytra: almost parallel. Apical margin broadly rounded at the outer lateral angles, turning obliquely inwards towards the sutural angle. On each elytron there are the vestiges of three costae (Fig. 6). The surface is closely, coarsely and confusedly punc- tate. Flattened expansion of elytral margin hardly depressed. Punctures at apical part STUTTGARTER BEITRAGE ZUR NATURKUNDE Ser. A, Nr. 648 Figs. 1-2. Habitus, dorsal view. - 1. Galeruca subcostata n. sp. 2. Galeruca himalayensis. — Scale: 5 mm. BEENEN, GALERUCA (GALEMIRA N. SUBGEN.) FROM PAKISTAN 5 of elytron less impressed than at base of elytron. Elytral epipleura impunctate and shining. Underside: male genital groove in last abdominal sternite distinct. Legs black. Claws pseudobifid (inner lobe of claw much smaller than outer lobe). Aedeagus: see Figs. 3a, 3b. In the holotype aedeagus and tegmen are glued to the same card as the beetle. The claw segment of the left front leg and the tarsus of the right middle leg are missing. Paratype, d. Length: 7.35 mm (total); 6.9 mm (from the anterior border of the eyes to the tip of the elytra). Greatest width across both elytra: 4.55 mm. Without wings (apterous). General colour black; elytra shining bicoloured. Outer margins yellow. Oblong; elytra flattened and broad, with vestiges of costae, covering the ab- domen almost completely; apical part of last abdominal tergite visible. The paratype is very similar to the type. The surface of the elytra is more shining. Furthermore, the punctures at the base of the elytra are partly fused. In the paratype the claw segments of the right front leg and of the right hind leg are missing, as well as the tarsus of the left middle leg and the complete left hind leg. Diagnosis This new species is the only one in the subgenus with the combination of black pronotum and elytra with vague costae. Although the colour of the pronotum is black it resembles mostly G. sexcostata, which sometimes also has a black (or dark brown) pronotum. However, G. sexcostata has very apparent elytral costae. Fur- thermore the aedeagus of the new species (Figs. 3a, 3b) differs from that of G. sex- costata (Figs. 4a, 4b) in having a much larger basal part. 2.3 Galeruca (Galemira) himalayensis Jacoby, 1896 Galeruca himalayensis: JACOBY (1896: 283) Galeruca himalayensis: MAULIK (1936: 100) The syntypes and one further specimen, preserved in the Natural History Muse- um (London), could be studied. I hereby fix the lectotype and the paralectotype. For an extensive description of this species I refer to MAULIK (1936). Only additional characters will be presented here. Material Lectotype, by present designation (BMNH): “Dalhousie [hand written] / Type / Jacoby coll., 1909 28a / Galeruca himalayensis Jac., 3 [hand written] / Andrewes, Bequest., 1922-221. / SYNTYPE / Galeruca himalayensis Jacoby, 1896, Lectotype design. R. BEENEN 2002”. Male specimen. Paralectotype, by present designation (BMNH): “Type HT / Dalhousie [hand written] / Jacoby coll., 1909 28a / Galeruca himalayensis Jac., 2 [hand written] / SYNTYPE / Galeru- ca himalayensis Jacoby, 1896, Paralectotype design. R. BEENEN 2002”. Female specimen. Additional material (BMNH): “Col. A. Newham, Dalhosie, 4.1.1912 / Adimonia sp. / An- drewes, Bequest., 1922-221. / Galeruca himalayensis Jacoby, 1896, R. BEENEN det. 2002”. Male specimen. Measurements, condition, and further remarks Lectotype: d. Length: 7.2 mm (total); 6.7 mm (from the anterior border of the eyes to the tip of the elytra). Greatest width across both elytra: 4.4 mm. Head: max- imal width of head across the eyes: 1.95 mm. Pronotum: maximal width: 3.1 mm; maximal length in the middle: 1.45 mm. Ser. A, Nr. 648 STUTTGARTER BEITRAGE ZUR NATURKUNDE "ww ] LI[PIG — “SISUACVIVULIY VINAIIVL) "G 'YIWISOIXIS VINAOTYD ‘py ‘ASU VIVISOIgNS VINLIVY "€ — '(Q) MOIA TeIsIe] Yay (e) Mara Jesıop ‘snseapay 'G-g 's31g BE BEENEN, GALERUCA (GALEMIRA N. SUBGEN.) FROM PAKISTAN 7 The lectotype has a large hole in the right elytron and the abdomen due to a pin. The specimen is glued to a card. Missing parts of the legs: tarsus of the left fore leg, tibia and tarsus of the left middle leg, tarsal segments 2 and following of the left hind leg; tibia and tarsus of the right fore leg, right middle leg, tarsal segments 3 and fol- lowing of the right hind leg. From the left antenna only 3 segments remain; from the right antenna 7 segments remain. Paralectotype: 2. Length: 10 mm (total); 8.4 mm (from the anterior border of the eyes to the tip of the elytra). Greatest width across both elytra: 5.75 mm. Head: maximal width of head across the eyes: 2.35 mm. Pronotum: maximal width: 3.6 mm; maximal length in the middle: 1.65 mm. The paralectotype is pinned. From both left fore leg and left middle leg tarsi are missing. Additional specimen: d. Length: 8.75 mm (total); 8.05 mm (from the anterior bor- der of the eyes to the tip of the elytra). Greatest width across both elytra: 5.55 mm. Head: maximal width of head across the eyes: 2.2 mm. Pronotum: maximal width: 3.55 mm; maximal length in the middle: 1.7 mm. This specimen is pinned. Only the first segment of the tarsus of the left middle leg remains. The claw segment of the left hind leg is missing. The aedeagus and tegmen are glued to a card that is fixed to the same pin as the specimen. The scutellum of the additional specimen has a longitudinal depression in the middle. Male antenna from additional specimen: Antennal segments 1 to 6 shiny; dorsum of apical part of segment 7 slightly produced and pubescent; segments 8 and 9 with dorsal part dull due to pubescence, ventral part shining; segment 10 almost completely dull, only a small spot on ventral part shining; segment 11 completely dull due to pubescence. The pitchy brown colour and duller upper surface of the lectotype is probably due to immaturity. The additional male specimen has colour and elytral structure as in the female. It is interesting that Galeruca himalayensis is the only species in this subgenus with bifid claws. The other species have pseudobifid claws. The habitus of G. himalayensis is depicted in Fig. 2. The aedeagus is depicted in Figs. 5a, 5b. 2.4 Galeruca (Galemira) sexcostata Jacoby, 1904 Galeruca sexcostata: JACOBY (1904: 405) Galeruca sexcostata: MAULIK (1936: 102) Galeruca sexcostata: ABDULLAH & QuRESHI (1969: 396) The syntypes and further specimens, preserved in the National History Museum (London), could be studied. I hereby fix the lectotype and the paralectotype. For an extensive description of this species I refer to MAULIK (1936). The specimens stud- ied did not differ from this description. Material Lectotype, by present designation (BMNH): “Type H. T. [circular label, borders red] / Lidder 1100’ / Jacoby Coll. 1909-28a / Galeruca 6 costata Jac. [blue label, hand written] / SYNTYPE [circular label, borders blue] / Galeruca sexcostata Jacoby LECTOTYPE design. R. BEENEN 2002”. Paralectotype, by present designation (BMNH): “Lidder 1100’ / Type [red label] / Galeruca 6 costata Jac. Type [hand written] / Andrewes Bequest. B. M. 1922-221. / SYN- TYPE [circular label, borders blue] / Galeruca sexcostata Jacoby PARALECTOTYPE de- sign. R. BEENEN 2002”. 8 STUTTGARTER BEITRAGE ZUR NATURKUNDE Ser. A, Nr. 648 Figs. 6-8. Left elytron. - 6. Galeruca subcostata n. sp. 7. Galeruca sexcostata. 8. Galeruca ba- rovskyi. — Scale: 3 mm. Measurements and condition Lectotype: d. Length: 9.15 mm (total); 7.4 mm (from the anterior border of the eyes to the tip of the elytra). Greatest width across both elytra: 4.95 mm. Head: max- imal width of head across the eyes: 2.15 mm. Pronotum: maximal width: 3.35 mm; maximal length in the middle: 1.45 mm. The lectotype is pinned. The specimen is complete. Paralectotype: d. Length: 8.5 mm (total); 7.45 mm (from the anterior border of the eyes to the tip of the elytra). Greatest width across both elytra: 4.65 mm. Head: maximal width of head across the eyes: 2.1 mm. Pronotum: maximal width: 3 mm; maximal length in the middle: 1.5 mm. The paralectotype is pinned. The left antenna and the left fore tarsus are missing. The apical half of the aedeagus is well visible. 3 Key to the species of the subgenus Galemira n. subgen. LE Pronotuia black I. 2 EM nr A SR FREE Pe EEE shen Wd A Bey 2 — Pronotum yellow or brown, sometimes with black marking.......... 22222222202. 5 ZEILE ES en re oan es 3 — Elytra without costae or önly'with vestiges of costae . . ns. yc nn ne nn 4 3-9 ostae wide anditlat (hie, 8). 20 a ae Paden tate ag rie sien ee ae ES barovskyi = -Costaetineand.emeérains (usa Na gs. oe cue acetate eas rasta tne eee sexcostata 4 Without costae. Elytra unicoloured black or dark brown ................ himalayensis With vestiges of costae. Elytra bicoloured: black, bordered with yellow (Fig.6) ......... 5 AERC sie eee as BIR RA su De cee eee, ee MIP RDN al an aur ices subcostata n. sp. BEENEN, GALERUCA (GALEMIRA N. SUBGEN.) FROM PAKISTAN 9 SE lytiar with distinct costae (l1097 De en ee el sexcostata aie vtrawiithout.distinet 2ostae Berit. ax Sie Mer, en AM che es ky ia SON ag tae aches 6 6! Elytra witirlateral and basal parts-vellOwy . exc neces Bsa ren. comaica* = Elytrawith-basal’and apıeal parts yelldw . 4, i105. see capes tio ne gyangzea* * The species G. comaica and G. gyangzea have not been studied, their inclusion in the key has been the result of interpreting the original publications only. 4 Distributional data of the species of the subgenus Galemira n. subgen. Galeruca barovskyi: Sichuan, Xizang (China) Galeruca sexcostata: Kashmir; Punjab (India) Galeruca himalayensis: only known from Dalhousie (India: Himachal Pradesh) Galeruca subcostata n.sp.: Shogran (Pakistan) Galeruca comaica: Xizang (China) Galeruca gyangzea: Xizang (China) 5 References ABDULLAH, M. & QureEsHt, S. S. (1969): The Chrysomelidae, Coleoptera of Pakistan. Part II: A key to the genera and species of the Galerucinae, with descriptions of new genera and species. — Pakistan Journal of scientific and industrial Research 11: 396-414. CHEN, S. & JIANG, S.-Q. (1981): Coleoptera-Galerucinae. — Insects of Xizang 1: 457-489. CHEN, S. & JIANG, S.-Q. (1987): New Galerucine beetles from Xizang (Coleoptera: Chryso- melidae). — Sinozoologia 5: 53-59. Jacosy, M. (1896): Descriptions of the new genera and species of phytophagous Coleoptera obtained by Mr Andrewes in India. Part II Chrysomelinae; Halticinae and Galerucinae. — Annales de la Societé entomologique de Belgique 40: 250-304. Jacosy, M. (1904): Another contribution to the knowledge of Indian phytophagous Coleo- ptera. — Annales de la Societé entomologique de Belgique 48: 380-406. Mauttk, S. (1936): The fauna of British India, including Ceylon and Burma. Coleoptera, Chrysomelidae (Galerucinae), 648 pp.; London (Taylor & Francis). Author’s address: Ron BEENEN, Martinus Nijhoffhove 51, 3437 ZP Nieuwegein, The Netherlands; e-mail: r.beenen@wxs.nl Manuscript received: 2.1.2003, accepted: 26.11.2003. ISSN 0341-0145 Autoren-Richtlinien: http://www.naturkundemuseum-bw.de/stuttgart/schriften Schriftleitung: Dr. Hans-Peter Tschorsnig, Rosenstein 1, 70191 Stuttgart Gesamtherstellung: Gulde-Druck GmbH, 72072 Tubingen