302 bulletin: museum of comparative zoology. 



Psocus viscAYANUs, sp. nov. 



Type.— M. C. Z. 10,797. Philippines — Luzon: Nueva Vizcaya; 

 Imugin (C. F. Baker). 



Head pale yellowish brown, with a median blacldsh stripe half way down on 

 the nose; antennae black, pale on most of the third joint, in male with moder- 

 ately long hair; thorax with three black spots in front; abdomen dark brown; 

 legs pale, the tibiae and part of tarsi dark. Wings hyaline, with black marks 

 much as in P. feai, but the median band is broad reaching from hind border 

 obliquely upward, the stigmal and apical streak as in that species, base of 

 stigma pale. The radial sector and median unite for a short distance, fork of 

 radial sector nearly three times as long as the pedicel, discal cell much longer 

 than broad, the stigma rather short, almost acute behind. 



Length to tip of wings, male 5 mm., female 6 mm. 



Psocus BORNEENSIS, sp. HOV. 



Type.— M. C. Z. 10,791. Borneo: Sandakan (C. F. Baker). 



Head pale, dark on nose; antennae pale brown to nearly black at tip, in 

 male with extremely long hairs; femora pale, tibiae and tarsi dark; lobes of 

 thorax blackish. Wings in general similar to P. lemniscatus, but the markings 

 reduced so that only the stigma, a connecting spot between the lower branch of 

 the radial sector and the median vein, and an oblique mark before end of the 

 anal vein, remain; several of the apical veins are narrowly margined with 

 dark ; in the female the marks are more extensive, and mark below stigma over 

 first posterior cell and out to tip is more or less definite. Venation dark, fork 

 of radial sector and end of discal cell pale, in the female more veins pale, and 

 with some dark streaks. The wings are shorter and proportionally broader 

 than in P. lemniscatus, the posterior cells nearly subequal, the areola postica 

 acute above. It differs chiefly in the stigma which is verj^ much higher, and 

 shorter than in P. lemniscatus. 



Length, female 6 mm., male 5 mm. 



Psocus RELATIVUS, Sp. nOV. 



Type.— M. C. Z. 10,792. Straits Settlements: Singapore (C. F. 

 Baker). 



Related to P. lem,niscatus and P. borneensis, but with a reduced pattern of 

 markings. In the fore wings the stigma is dark only across the tip; all the 

 veins beyond the middle of the wings are plainly margined with dark, a con- 



