580 - The Philippine Journal of Science 1922 
foveolate above and below; mesopleurum polished in middle, 
rugulose-punctate dorsally and anteriorly, mesopleural furrow 
foveolate, prepectal carina very sharp, curving backward below 
the front wing to join the carinate dorsal margin of the pleurum; 
sternauli complete, deep and broad anteriorly; sternum densely 
punctate, median furrow very broad and deep; propodeum and 
metapleurum irregularly rugose; basal area confluent; spiracle 
round, situated on a raised area; apophyses very prominent; 
pleural carinze and costellz2 obscured by sculpture; nervulus 
interstitial; areolet higher than long, intercubiti slightly conver- 
gent above; bulle large, second intercubitus largely hyaline; 
nervellus strongly inclivous, broken at lower fourth. Abdomen 
coarsely reticulate-rugose; first tergite as wide at apex as long, 
median carinze convergent beyond middle, not attaining the 
apex but becoming obscured by the sculpture, spiracles sub- 
tuberculate; second and third tergites separated by a distinct 
suture, third with prominent apical angles. 
Black; antennz toward base and palpi brownish; front and 
middle legs brownish piceous, their tibie and tarsi pale; hind 
legs darker; wings hyaline, immaculate. 
Type locality—Los Bafios, Luzon, Philippine Islands. 
Type.—Catalogue No. 24056, United States National Museum. 
Described from one male collected by C. F. Baker: 
Genus SYRITES Tosquinet 
Syrites TOSQUINET, Mem. Soc. Ent. Belg. 10 (1903) 117. 
? Camptolyna CAMERON, Berl. Ent. Zeit. 55 (1910) 252. 
I am somewhat doubtful of the synonymy of Camptolynx. 
Cameron states that in the male this genus has the spines on 
the fourth tergite. In Syrites they are on the third. Aside 
from this Cameron’s description is very like Syrites, and it may 
be that he was mistaken as to the location of the spines or 
that there is variation within the genus in this respect. 
Acanthoprymnus Cameron, from South Africa, synonymized 
by Schmiedeknecht with Syrites, seems not to be the same genus. 
It is described in the female as having spines on the third 
tergite, a character not found in the female of Syrites. 
The peculiar structure of the abdomen in the male and the 
marked sexual antigeny have led to the description of species 
properly placed here in no less than seven genera. All are 
from the Australian and Oriental Regions. 
The following key is based on the descriptions of all of the 
Australian and Oriental species that I have been able to identify 
