J 



HYMENOFTERA FROM BORNEO. 21 



Hadrocryptus dentatus, sp. nov. 



Black ; the facial tubercle, sides of face — the line slightly- 

 broader than the black central part — clypeus, labrum, a line on 

 the upper inner orbits to the end of the top of the eyes, the outer 

 to near the outer edge, base of mandibles to near the middle, 

 base of pronotum, a longish oval mark on the sides of the 

 middle lobe of mesonotum at the base another at the apex ; 

 scutellar keels, scutellum except at the base, post-scutellum, 

 the keels at the sides of both, a broad reversed T-shaped mark 

 on the apex of metanotum, its top rounded, the sides blunter, 

 a curved line on the apex of propleurse, tubercles, a mark, 

 longer than wide, on the lower third of the apex of meso- 

 pleurae, the apex of metapleurae broadly, the mark obliquely 

 narrowed above and below, and broad bands on the apices of 

 the abdominal segments, the apical dilated backwards on the 

 sides to the base of the segments, yellow. Four front legs 

 yellow, the femora tinged above with fulvous ; the hinder 

 yellow, their femora tinged with fulvous, the outer side of the 

 coxae, the inner to near the apex, the apical joint of the troch- 

 anters on the innerside, the base of the femora narrowly, the 

 apex more broadly — the band as long as the 2nd tarsal joint — 

 and the apical 2 joints of the 4 anterior tarsi, black. The 

 5th to 13th joints of antennae white. Wings hyaline, the 

 nervures and stigma black. 9 . 



Length 15 mm. ; terebra 6 mm. 



Kuching, Borneo. June. 



Facial tubercle prominent, longish oval, twice longer than 

 wide, blunter pointed and broader below than above, strongly 

 punctured. Face and clypeus strongly punctured, the latter 

 less strongly than the former ; the apex of the clypeus trans- 

 verse, the sides slightly projecting and there is a minute 

 tubercle in the middle ; the lateral projections leaf -like. 

 Front and vertex smooth, punctured behind the ocelli. Meso- 

 notum smooth, the apex in the middle finely punctured. 

 Scutellum distinctly, not very closely punctured, the apical 

 slope striated. The base of the metanotum has the basal half 



R. A, SoCi, No. 48, 1907, 



