Ulonemia assamensis (Distant, 1903)

Figs. 1, 2, 7, 11, 15, 19

Teleonemia assamensis Distant 1903a: 49 [India]; 1903b: 143, fig.106; Drake 1937: 592 [China].

Perissonemia assamensis: Drake and Poor 1936: 439 [China: Hainan, Taiwan].

Perissonemia (Ulonemia) assamensis: Takeya 1951: 18 .

Ulonemia assamensis: Drake and Ruhoff 1960a: 29; Takeya 1962: 57 [China: Taiwan, Fujian, Guangdong]; Drake and Ruhoff 1965a: 420; Jing, 1981: 289 [China: Guangxi]; Péricart 1996: 44, lectotype designated; Péricart and Golub 1996: 77 [China, Borneo, India, Vietnam]; Tomokuni 2007: 64, fig. 8 [China: Taiwan].

Redescription. Body elongate, pale brown; head black, densely covered with pale pruinescence, antennal segments brown, segment IV dark brown (Fig. 1), clothed with pale pubescence; paranota yellowish brown. Ventral surface of body brown (Fig. 15).

Head short, front and median spine stout, suberect, occipital ones slender, appressed, reaching forwards to middle of eyes (Figs. 7, 11); bucculae narrow, tapering anteriorly, opening in front, mostly biseriate, inferior margins nearly straight (Fig. 11); rostral sulcus narrow, nearly parallel, opening behind; rostrum extending to middle of metasternum (Fig. 15).

Pronotum rather strongly convex, distinctly punctate (Figs. 7, 11); hood inflated, globular in dorsal view (Fig. 7), height shorter than median carina, six areolae long, five areolae broad on each side, anterior margin produced, arched, posteriorly produced, reaching pronotal disc (Fig. 11); median carina contiguous to hood, somewhat raised, height higher than lateral carinae, uniseriate, with miniscule areolae; lateral carinae ridge-like, not areolate, slightly converging anteriorly, curved and converging posteriorly towards the pronotal posterior process, there, distance between lateral and median carina two areolae wide; paranota reflexed dorsally, narrow, distinctly biseriate at calli, narrower posteriorly, uniseriate opposite humeri (Fig. 11). Calli and thorax ventral surface densely covered with white pruinescence.

Hemelytra slightly wider than pronotum, margins nearly straight (Figs. 1, 2); costal area narrow, regularly uniseriate, areolae mostly widthwise ablong to subquadrate; subcostal area slightly wider than costal area, regularly biseriate, areolae round; discoidal area extending more than half the length of hemelytron, seven areolae broad at widest part; sutural area wider than discoidal area, ten areolae broad at widest part, areolae polygonal; areolae subquadrate on hypocostal laminae.

Female paratergite VIII distinctly produced posteriorly towards lateral margin of paratergite IX (Fig. 19).

Measurements. Males (N =3) and females (N =3) respectively. Total body length (male/female): 3.44–3.56 (3.51)/3.60–3.68 (3.65); body width (across hemelytra): 1.06–1.12 (1.09)/1.20–1.24 (1.23); antennal segments I: 0.20–0.22 (0.21)/0.22–0.24 (0.23); II: 0.12–0.14 (0.13)/0.12–0.14 (0.13); III: 1.56–1.58 (1.57)/1.52–1.54 (1.53); IV: 0.62–0.64 (0.63)/0.60–0.64 (0.62); pronotum length: 1.64–1.66 (1.65)/1.70–1.80 (1.75); width: 0.99–1.00 (1.00)/1.04–1.12 (1.07); hemelytra length: 2.48–2.64 (2.55)/2.60–2.68 (2.63); discoidal area length: 1.42–1.46 (1.44)/1.56–1.60 (1.58).

Material examined. Guangxi Province: 2 males, 4 females, Longsheng County, Cu Jiang (Licu Jiang) (N25.60, E 109.91). 23.VIII.1964, Liangchen Wang leg. (NKUM); 1 male, China, Longsheng County, along the way form Tianpingshan Mountain to Baiya, 30.VIII.1964, Liangchen Wang leg. (NKUM); 1 male, China, Huaping, Hongtan, Huaping Natural Reserve (N 25.59, E 109.97), 12.VI.1963, Chikun Yang leg. (The Department of Plant Protection, Beijing Agricultural University) (NKUM).

Discussion. These specimens were previously identified as U. assamensis (Distant, 1903) by Jing (1981). After reviewing the lectotype deposited in the British Museum of Natural History (BMNH) in London, by authors Dr. E. Guilbert and Mr. K. Dang (Fig. 2, dorsal photograph of lectotype habitus; Fig. 4, photographs of type label information), we concur with Jing’s the identification.