Orthoneolepta fulvipennis ( Jacoby, 1884 ) Hazmi & Wagner, 2013

Hazmi, Izfa Riza & Wagner, Thomas, 2013, Revision Of Neolepta Jacoby, 1884 And Related Galerucines From The Oriental Region, Including Descriptions Of Two New Genera (Coleoptera: Chrysomelidae: Galerucinae), Raffles Bulletin of Zoology 61 (1), pp. 73-95 : 90-93

Orthoneolepta fulvipennis ( Jacoby, 1884) , new combination

( Figs. 37–44 )

Neolepta fulvipennis Jacoby, 1884: 222–223

Type material. — Lectotype, “ Neolepta fulvipennis Jac. / Dr. B. Hagen. Tandjong Morawa Serdang (N. O. Sumatra) / Baly coll.” ( BMNH; Fig. 44 ). Type locality: Indonesia, Sumatra 0°35'S / 101°18'E. Jacoby gave no number of the specimens he studied, but there are several specimens from the type locality available, and thus we herein designate a lectotype to fix the name on single specimen . – Paralectotypes, 5 ex., same data as lectotype ( NNML). – Invalid types : 1 ex., “ Soekaranda , 0°37'S / 104°29'E, Jan.1894, Dohrn, 71490”, and 1 ex., “ Dohrn, Sumatra, Lianggas , 0°37'S / 94°29'E, 71491, Arcastes sanguinea ” in MNHU are both labelled as co-type, but are not from the type series .

Further material examined. — Indonesia. 1 ex., Medan , Sumatra, 3°30'N / 98°37'E, J. J. D. V. Museum Leiden ex. Collection J. J. de Vos tot Nederveen Cappel ( NNML) ; 1 ex., N. E. Sumatra, Deli, Kuala Simpang, Semadan Estate , 3°34’N / 98°40’E, Nov.1954, A. Sollaart, lowland forest ( NNML) ; 1 ex., Soekaranda , 0°37'S / 104°29'E, J. V. Hasselt ( NNML) ; 6 ex., Sumatra, Forides , Baly coll. ( BMNH) ; 3 ex., Soekaranda , 0°37'S / 104°29'E, Jan.1894, Dohrn, 380., Arcastes sanguinea Jac. (MNHU) . – Malaysia. 2 ex., Borneo , Sarawak, 1865–1866, coll. G. Doria ( MCGD) ; 6 ex., Mt. Matang , W. Sarawak, 1.55°N / 110.35°E, Dec.1913, Jan.1913, Mar.1914, G. Bryant coll. 1919–147 ( BMNH) ; 2 ex., Quop, West Sarawak, 1°33'N / 101°24'E, Mar.1914, G. Bryant coll. 1919–147 ( BMNH) ; 2 ex., Borneo, Mahakam ( BMNH) ; 3 ex., Sarawak, 2°30'N / 113°15'E, C. J. Brooks, B. M. 1928–193 ( BMNH) ; 3 ex., Fed. Malay States : 3°08'N / 101°42'E, 1909, C. J. Brooks, B. M. 1931–570 ( BMNH) ; 1 ex., Sarawak, Matang , 4 1/ 2 miles, 1°32'N / 110°15'E, 6 Jun.1909, J. E. A. Lewis 1910–116 ( BMNH) ; 8 ex., Borneo, Banja , 2°30'N / 113°15'E, German mission, Fry coll. 1909.100 ( BMNH) ; 1 ex., Long Navang, Borneo , 2°30'N / 113°15'E, Mjoberg ( NHRS) ; 1 ex., Taman Negara NP Kuala Tahan , primaval forests, 4°19'N / 102°20'E, 5–9 Mar.2007, V. Hula, Puchart, L. Ruzicka, F. ( CJB) .

Total length. — 4.75–5.60 mm (mean: 5.20 mm; n = 10)

Head. — Brown to reddish-brown. Impunctate. First basal antennomeres contrasting reddish-brown, second to outer antennomere usually black ( Fig. 38 ). Ratio length of second to third antennomere 0.60–0.75 (mean: 0.73); widened, insignificantly enlarged, ratio length of third to fourth antennomere 0.38–0.50 (mean: 0.45; Fig. 39 ).

Thorax. — Pronotum brown to reddish-brown. Pronotal width 1.50–1.70 mm (mean: 1.57 mm), ratio length to width 0.59–0.63 (mean: 0.61). Scutellum brown to reddish-brown. Elytral entirely brown to reddish-brown ( Fig. 38 ), coarsely punctuated, punctuation partly arranged in longitudinal rows. Elytral length 3.90–4.60 mm (mean: 4.27 mm), maximal width of both elytra together 2.70–3.30 mm (mean: 2.95 mm), ratio of maximal width of both elytra together to length of elytra 0.67–0.71 (mean: 0.69). Legs blackish, except coxa and trochanter contrasting brown to reddish-brown. In particular tibia with dense and fine setae.

Abdomen. — Brown to red.

Male genitalia. — Median lobe broad, incised apically. Tectum long, broad and became pointed at apex. Median spiculae consist of laterally arranged slender structures. At the bottom of median lobe, several basal endophallus

structure of plate like structured present, and sacculus can visibly seen ( Fig. 40 ).

Female genitalia. — Spermatheca with small, slender and elongated nodulus. Middle part long and slightly curved, cornu long and curved ( Fig. 41 ). Two pairs of bursa sclerites;

one spiny and sclerotized and one other pair of hook-shaped, bigger in size ( Fig. 42 ).

Distribution. — Distributed throughout Borneo, Sumatra and Peninsular Malaysia ( Fig. 43 ).

Diagnosis. — Orthoneolepta fulvipennis resembles Rubrarcastes sanguinea ( Jacoby, 1892) from colouration and antennomeres (both possess widened medium antennomeres), but O. fulvipennis posses second and third antennomere almost the same length (ratio length of second to third antennomere 0.60–1.00) differed to R. sanguinea which third antennomere longer than second antennomere (0.43–0.57). Median lobe and spermatheca are different between these two species. From O. banggiensis , O. fulvipennis can be differentiated by the dorsal colouration. Elytral entirely brown to reddish-brown in O. fulvipennis ( Fig. 38 ) while often the sutural and lateral margin narrowly black on yellow to dark brown elytra of O. banggiensis ( Fig. 45 ).

Figures

Fig. 37. Orthoneolepta fulvipennis (Jacoby, 1884): a, head; b, prothorax; c, meso- and metathorax, ventral view; d, hindwing, right, dorsal view; e, prothoracic; f, mesothoracic; g, metathoracic leg; h, female abdomen; i, male abdomen.

Figs. 38–42. Orthoneolepta fulvipennis (Jacoby, 1884). 38, dorsal colour pattern. 39, antennae: a, male; b, female. 40, median lobe: a, dorsal; b, lateral; c, ventral. 41, three different spermathecae. 42, two pair of bursa sclerites.

Fig. 43. Distribution of O. fulvipennis (Jacoby, 1884) and O. banggiensis (Mohamedsaid, 1997).

Fig.44.Photographs of the lectotype of Neolepta fulvipennis Jacoby, 1884: a, with labels; b, detail.

Figs. 45–49. Orthoneolepta banggiensis (Mohamedsaid, 1997). 45, dorsal colour pattern. 46, antennae: a, male; b, female. 47, median lobe: a, dorsal; b, lateral; c, ventral. 48, three different spermathecae. 49, two pair of bursa sclerites.