322 The Philippine Journal of Science ww 



Iposcopus breviceps sp, nov. 



Length, 5 mm.; width of head, 1.8 mm. Straw-colored with 

 darker mottlings. Face with two small black spots midway be- 

 tween ocelli and upper margin, with large dark mottling on upper 

 portion and with smaller and more sharply defined markings on 

 lateral fields of front; apical half of clypeus, except middle of 

 apical margin, blackish. Pronotum with small, indistinct, 

 darker mottlings, these larger and darker near the lateral angles, 

 and with two small round black spots on anterior margin just 

 within eyes. Scutellum with basal blackish lunulse, the central 

 fovese of middle area darkened. Tegmina semitransparent, 

 brownish, a white dot near base of clavus and another at tip 

 of inner claval vein ; veins of corium whitish ; corium with whit- 

 ish mottlings near base and with the area of the large, outer 

 apical cell clearer. Mesopleurse black-spotted. Tibiae darkened 

 apically. Abdomen nearly concolorous. 



Head very finely shagreened throughout, scarcely as wide as 

 pronotum ; length of vertex into width between eyes about eleven 

 times; vertex slightly shorter at middle than at eyes. Face 

 broader than long; ocelli equally distant from eyes and median 

 line; front but little broader than long; clypeus about as broad 

 as long, apical margins but slightly incurved; lorse as long as 

 clypeus and about half as broad. Width of pronotum scarcely 

 two and a half times the length, the length more than seven 

 times that of the vertex ; surface finely shagreened and remotely 

 subobsoletely wrinkled and punctured. Sculpturation of scutel- 

 lum as in distanti. Tegmina slightly roughened basally and 

 with punctures along the veins; veins very evident basally. 

 Anal segment of female with hind margin laterally strongly 

 incurved; the lateral angles acutely produced, the median por- 

 tion subtruncate. 



Mindanao, Butuan {coll. Baker) . 



Although this form and /. distanti are from the same general 

 region, and one is represented only by males and the other only 

 by females, I do not feel justified in placing them as the two 

 sexes of a single species. Striking sexual dimorphism in colors 

 is to be expected in this group, but I have yet encountered no 

 such sexual differences in structure as are exhibited in this case. 



Genus IPOCERUS novum 



The form here described as the type of a new genus was at 

 first placed in Kirkaldy's genus Ipo, following his description. 

 Through the kindness of Mr. Frederick Muir I have been able 

 to examine a specimen of Ipo conferta Kirk, from Queensland, 



