54 The Philippine Journal of Science isis 



lines beginning not far from each other at the base of the lobe 

 and running to the apical angles, posterior lobe about two times 

 longer than anterior lobe, rather coarsely and sparsely punctate 

 and with a transverse impression at the middle of its anterior 

 margin. Scutellum with a T-shaped elevation. Elytra a little 

 passing apex of abdomen; corium and clavus rugulose, clothed 

 with a short, sericeous, whitish pubescence. Abdomen as broad 

 as the closed elytra, subparallel from its base to apex of fourth 

 segment, beneath in the middle rather longly, erectly pilose, 

 especially in its apical half, male genital segment transversely 

 impressed before the rounded apical margin. First joint of 

 hind tarsi two-thirds longer than the other joints together. 

 Length (exclusive of membrane), male, 6 to 6.3 millimeters. 

 Luzon, Los Banos, Mount Maquiling; Tayabas, Malinao, 

 Somewhat related to A. militaris Dist. and A. gibbicollis Horv. 

 and intermediate in size between these two species; it differs 

 from both by the much longer metatarsus of the hind legs and 

 by the color markings, from gibbicollis also by shorter and 

 differently sculptured anterior lobe and less densely punctate 

 posterior lobe of the pronotum. 



Astacops lividiventris sp. nov. 



Black, finely palely pubescent, head (excluding the black clyp- 

 eus and a board median fuscous vitta to vertex), a more or 

 less distinct transverse spot on each side of the pronotal apical 

 margin near the angles, and pectus rusty testaceous; abdomen 

 pale livid subglaucous, membrane fuscous, antennae fuscous- 

 black, rostrum piceous, legs pale testaceous, tibiae and tarsi 

 infuscated. Head slightly broader than humeral width of pro- 

 notum, vertex with a longitudinal median groove much narrower 

 than the fuscous vitta in which it is placed, this groove ter- 

 minated on each side by a blunt elevation, ocular peduncles 

 short, directed outward, ocelli a little more distant from each 

 other than from the eyes, second and third joints of an- 

 tennae equal in length, fourth conspicuously longer than third, 

 rostrum reaching hind coxae. Pronotum a little declivous 

 (anterior lobe very slightly so), a little narrowed from base 

 to apex, the transverse impression rather shallow, lateral margins 

 very slightly sinuate, anterior lobe with a curved transverse 

 callosity ending at the apical margin near the angles, the callosity 

 provided with an impressed line interrupted in the middle, pos- 

 terior lobe about two and a half times longer than the anterior 

 one, sparsely but rather coarsely punctate, especially near the 

 middle. Scutellum with a T-shaped carination. Elytra a little 



