banks: new neukopteroid insects. 307 



DiNOPSocus, gen. nov. 



In o;eneral similar to Sigmatoneura, but the third joint of the antennae is 

 plainh- thickened, especiallj' toward tip, and densely- hair}-. The discal cell 

 is closed; the median vein united to radial sector or connected by a cross- vein; 

 stigma long and slender; areola postica short or broad above, but not pedi- 

 cellate. 



Type. — D. atratus, sp. nov. 



This genus is much Hke our American Cerastipsocus, but differs in 

 the antennae; it is also near Syngonosoma, which has the fourth joint 

 of antennae also thickened. 



DiNOPSOCUS ATRATUS, Sp. nOV. 



Type.— M. C. Z. 10,800. Borneo: Sandakan. Philippines — Mt. 

 Banahao (C. F. Baker). 



Blackish; a pale stripe through pleura and on sides of the abdomen, femora 

 pale at base; wings blackish, stigma and space behind it deeper black; vena- 

 tion dark, lower branch of fork of radial sector, lower end of discal cell, median 

 vein from discal cell out to near tip, and the bases of the branches of median 

 vein, are pale yellowish, in one specimen the upper and outer sides of discal 

 cell are also rather pale. Antennae long, third joint subclavate, densely 

 haired, fourth joint and beyond very slender, with few short hairs. Wings 

 elongate; stigma long and slender, rounded behind, fork of radial sector 

 broad at base, and nearly three times as long as pedicel; discal cell long and 

 slender, sides nearly straight; areola postica high, fairl}' broad above; hind 

 wings evenly blackish; hind tibiae slightly flattened. 



Length 8.5 to 9 mm. 



A broken female from Singapore is probably the same species. 



DiNOPSOCUS SEMICOLORATUS, Sp. UOV. 



Type.— M. C. Z. 10,801. Philippines — Luzon: Makiling (C. F. 

 Baker). 



Blackish, antennae and palpi deep black. Wings hyaline, a large black 

 mark over more than the basal third connected along costal area with a large 

 black mark over stigma and beyond and with an extension toward the areola 

 postica, and the apical part extended down over the third and a little of second 

 posterior cell. Stigma moderately long, not very high, almost rounded behind, 

 fork of radial sector about twice as long as the pedicel, not widened at base, 



