Oides innocua Gahan

Lee, Chi-Feng & Beenen, Ron, 2017, Revision of the Palaearctic and Oriental species of the genus Oides Weber, 1801 (Coleoptera: Chrysomelidae: Galerucinae), Zootaxa 4346 (1) : 65-68

Oides innocua Gahan

( Figs 43A–43C , 44 )

Oides innocua Gahan, 1891: 457 ( India) ; Maulik, 1936: 120 (redescription); Wilcox, 1971: 10 (catalogue). Oides kanaraensis Jacoby, 1904: 393 ; Weise, 1924: 4 (catalogue); Maulik, 1936: 120 (as synonym of O. innocua ). Synonymy confirmed

Oides bengalensis Maulik, 1936: 110 (Bengal) ; Wilcox, 1971: 4 (catalogue); Basu, 1996 (catalogue). New synonymy

Types. Oides innocua . Lectotype ♂ ( BMNH), here designated, labeled: “SYN- / TYPE [p, w, circle label with blue border] // Baly Coll. [p, w] // (blank) [y] // Adorium / innocuum / Baly / India [h, b] . Paralectotype. 1♀ (BMNH): “SYN- / TYPE [p, w, circle label with blue border] // Type [p, w, circle label with red border] // (blank) [y] // Baly Coll. [p, w] // Oides / innocua / Type Gahan [h, w]”.

Oides kanaraensis . Lectotype ♂ (BMNH), here designated, labeled: “N. Kanara / T. R. Bell [p, w] // Co- / type [p, w, circle label with green border] // H. E. Andrewes / Bequest / B. M. 1922-221 [p, w] // Oides / Kanaraensis / ♂ Jac. [h, w] // Oides / kanaraensis / Jac. [h, blue label]”. Paralectotypes. 1♀ (BMNH): “N. Kanara / T. R. Bell [p, w] // Type [p, r] // Oides / kanaraensis / Jac. [h, b] // SYN- / TYPE [p, w, circle label with blue border]”; 1♀ (BMNH): “SYN- / TYPE [p, w, circle label with blue border] // N. Kanara / T. R. Bell [p, w] // Jacoby Coll. / 1909- 28 a [p, w] // kanaraensis Jac. [h, b]; 1♀ (BMNH): “214 [h, w] // SYN- / TYPE [p, w, circle label with blue border] // Type / H. T. [p, w, circle label with red border] // N. Kanara / T. R. Bell [p, w] // Jacoby Coll. / 1909-28 a [p, w]”.

Oides bengalensis . Holotype ♂ (BMNH, by monotypy), labeled: “[male aedeagus glued on card] // Type [p, w, circle label with red border] // tetraspelotum / Hope Bengal [h, w] // Jacoby Coll. / 1909-28 a [p, w] // Oides / bengalensis m. [h] / S. Maulik [p] / Type [h, w] // O. bengalensis Maulik 1936 / is a variety of O. innocua / Gahan 1891. ♂ dissected on / January 1974. [h] / A. VACHON—det. [p, w]”.

Redescription. Length 10.0– 12.5 mm, width 7.0– 8.6 mm. General color ( Figs 43A–43C ) yellow; antennomeres X–XI and metasternum black; elytra with two pairs of black spots on the elytra, one pair at middle near lateral margins and the other near suture at apical 1/3. Antennae filiform in males ( Fig. 44A ), antennomeres IV longest, VI–XI stout, length ratios of antennomeres I–XI 1.0: 0.7: 0.9: 1.0: 0.8: 0.7: 0.7: 0.6: 0.6: 0.6: 0.7, length to width ratios of antennomeres I–XI 3.7: 1.9: 2.5: 2.6: 2.1: 2.1: 2.0: 2.1: 2.3: 2.2: 2.6; broader in female ( Fig. 44B ), length ratios of antennomeres I–XI 1.0: 0.6: 0.7: 0.8: 0.7: 0.7: 0.7: 0.6: 0.6: 0.6: 0.7, length to width ratios of antennomeres I–XI 2.9: 2.0: 2.3: 2.1: 2.2: 1.8: 2.1: 2.0: 2.0: 1.9: 2.5. Pronotum transverse, 2.3x wider than long, disc without fine punctures, baso-lateral angles rounded, apico-lateral angles rectangular, apical margin weakly concave. Elytra oval, widest at middle, 1.1–1.2x longer than wide; disc with reticulate microsculpture, moderately convex, epipleurae located 6/7 distance between suture and lateral margins, strongly broadened at basal 1/5, and abbreviated at basal 1/3; humeral calli prominent. Penis ( Figs 44C–44E ) elongate, 9.2x longer than wide; parallel-sided, abruptly broadened subapically; tectum elongate, deeply bifurcate at basal 1/3, apically connected with each other by transverse sclerite; penis moderately curved in lateral view, apex narrowly rounded; ventral surface with shallow, narrow but slightly and medially broadened notch from apex to apical 1/6; internal sac without sclerites. Apical margin of abdominal ventrite V in female moderately concave. Gonocoxae ( Fig. 44F ) separated, triangular, without setae. Ventrite VIII ( Fig. 44G ) transverse, apical margin with one pair of rounded processes at middle, with dense, long setae along apical margin, spiculum short. Receptacle of spermatheca ( Fig. 44H ) wide, connected to pump; pump strongly curved, apex broadly rounded; proximal spermathecal duct very small but broad, covered with transverse ridges, both sides of ridges terminating in a minute tooth.

Variation. A number of specimens possess entirely yellow elytra without black spots. Some specimens possess only one pair of black spots at the middle of the elytra and near the lateral margins. Specimens of the latter were described as O. kanaraensis .

Diagnosis. Specimens of O. innocua are easily recognized by their dull, broadly oval elytra and prominent humeral calli.

Other specimens examined. INDIA. Goa: 1 ex. ( JBCB), 30 km S of Margao (= Madgaon), Palolem env., 15°00’47”N 74°01’58”E, 0–20m, 12–14.VIII.2002, leg. P. Šípek & M. Fikáček; Malabar: 5 exs. ( NMPC), Walayar, 18.IX.1938, leg. P. S. Nauran; 4 exs. ( NMPC), same but with “ 28.VIII.1938 ”; 2♀♀ ( BMNH), Walayar, leg. A. K. Weld Downing, H. E. Andrewes Coll., B.M. 1945-97.

Distribution. India, Bangladesh.

Figures

FIGURE 43. Habitus of Oides innocua Gahan and O. scutellata (Hope). 43A. O. innocua, dorsal view; 43B. Same, ventral view; 43C. Same, lateral view; 43D.O. scutellata, dorsal view; 43E.Same, ventral view; 43F. Same, lateral view.

FIGURE 44. Diagnostic characters of Oides innocua Gahan. 44A. Antenna, male; 44B. Antenna, female; 44C. Penis, dorsal view; 44D.Penis, lateral view; 44E.Penis, ventral view; 44F.Gonocoxae; 44G.Abdominal ventrite VIII; 44H.Spermatheca.