Astinus intermedius Miller, 1954

Truong, Xuan Lam, Zhao, Ping & Cai, Wanzhi, 2006, Notes on the genus Astinus Stål (Heteroptera: Reduviidae: Harpactorinae) from Vietnam, with the description of the female of Astinus intermedius Miller, Zootaxa 1172 (1), pp. 31-41 : 33-34

Astinus intermedius Miller

( Figs. 1–6 )

Astinus intermedius Miller 1954: 450 .

Description of female

Coloration: Head, fore leg (including fore trochanter and coxae), rostrum (except apex of third segment), antenna, reddish yellow; apex of third rostral segments brown; eyes purplish red, ocelli light yellow; meso­ and metapleura, meso­ and metacoxae, scutellum (except two pale markings laterally), base of corium blackish brown; anterior pronotal lobe light yellowish brown to dark brown; elevations of posterior portion, lateral pronotal angles and middle longitudinal stripe on posterior half of posterior lobe darker; collar, two pale markings of scutellum laterally, prosternum, anterior margin of mesosternum, mid and hind legs (except coxae), hemelytra (except base of corium and wax patches), second connexival segment, most of third connexival segment, external angle of sixth connexival segment, most of seventh connexival segment, eighth connexival segment, middle of second and third abdominal sterna, posterior margin of seventh abdominal sternum, and genital segment light yellow; most of abdomen beneath (except light yellow part) piceous; pronotum, lateral sides of scutellum, pleuron, abdomen beneath, corium clothed with white wax patches of different sizes.

Structure: Body oblong. Body clothed with pale short setae and vertical long setae, under surface of fore leg with dense short setae.. Head elongate, postocular portion about 1.5 times of anteocular portion; processes behind antennae short and conical; first antennal segment distinctly longer than third, fourth segment shortest; interocellar space longer than distance between ocellus and eye on each side; first rostral segment extending beyond posterior margin of eyes, thickest and longer than second and third segments combined. Collar process developed; pronotum wider than long; anterior pronotal lobe bulged and smooth, tuberculate process not developed ( Fig. 2 ); posterior pronotal lobe about 2.5 times as wide as anterior lobe, large processes on disk ridgelike ( Figs. 2, 3 ); lateral angles of pronotum acute and apex rounded, posterior margin slightly convex, posterior angles prominent ( Figs. 1–3 ); scutellum shorter than wide, with V­shaped carina, apex tuberculate; hemelytra reaching abdominal tip. Abdomen moderately dilated laterally.

Measurements: ♀, Body length 21.53; abdomen width 8.13. Head length 4.00; anteocular portion length 1.35, postocular portion length 1.90; synthlipsis length 0.78; interocellar space 0.41; length of antennal segments I–IV= 10.15, 3.73, 8.4, 3.68; length of rostral segments I–III = 2.48, 1.34, 0.76; anterior pronotal lobe length 1.60, posterior lobe length 3.07; thorax width 6.27; scutellum length 0.55; hemelytron length 14.00.

Material examined

1♀, Vietnam, Phu Tho Province, Xuan Son National Park , 20.X.2004, Xuan Lam Truong leg ( IEBR) .

Distribution Borneo, Vietnam.

Figures

FIGURE 1. Astinus intermedius Miller, ♀. Habitus. Scale bar =2.80 mm.

FIGURES 2–6. Astinus intermedius Miller, ♀. 2, Head and pronotum, antennae removed; 3, pronotum; 4, abdomen; 5, 6, apical part of abdomen; 2, 4, 6, lateral view; 3, caudal view; 5, ventral view. Scale bar of 2, 5, 6 = 1.33 mm; of 3 = 1.00 mm; of 4 = 2 mm.