194 Philippine Journal of Science w> 



e\ Cubitus forked well distad of its midpoint; antennas more than 

 twice as iong as width of head; female genital segment 

 smaller; general color dark brown to black, with reddish 

 or yellowish stripes and markings. (Malay Peninsula.) 



M. gigantea sp. nov. 

 c". Genal cones wanting, gense slightly or considerably swollen beneath 

 antennal bases; vertex and dorsum very hairy; first marginal 

 cell of forewing very large. (India.) 



M. hirsuta Crawford ('12: 427). 

 a 1 . Medial vein forking at or near its midpoint, upper fork (Mi+ 2 ) joining 

 costa at apex of forewing; marginal cells subequal; genal cones 

 shorter than vertex. 

 b\ Thoracic dorsum black, without lighter markings. 



c 1 . Body slender, nearly all glossy black; hind wings very much reduced; 

 forewings very narrow, radius not margined with black. 

 d\ Hind wings reaching to tip of abdomen; male anal valve very 

 large and expansive, reaching caudad of forceps. (Philippines.) 



M. magnicauda sp. nov. 

 dr. Hind wings reaching about half way to tip of abdomen; male 

 anal valve smaller. (Philippines.) 



M. asiatica Crawford ('15: 266). 

 c 1 . Body robust; thorax dull black; hind wings about half as long as 

 forewings, reaching beyond tip of abdomen; forewings broader, 

 basal vein and radius conspicuously bordered with black. (Phil- 

 ippines.) M. melanoneura sp. nov. 



b 2 . Thoracic dorsum brown or lighter, usually more or less striped or 

 banded with orange. 

 c\ Male forceps acuminate, uniformly tapering to acutely pointed tip; 

 female ovipositor exserted, styliform; antennae twice as long as 

 width of head. (Philippines and Malay Peninsula.) 



M. stylata sp. nov. 



c 2 . Male forceps not as above, with a long fingerlike process distad; 



ovipositor not as above; antennae less than twice as long as 



width of head. (Philippines, Malay Peninsula and Archipelago, 



Fiji, Java, and Ceylon.) M. vitiensis (Kirkaldy) ('07: 103). 



Megatrioza armata Crawford ('15: 264). 



The body color of this species is not uniform as indicated 

 in the first description, but the thoracic dorsum has longitudinal 

 bands of brown with pale brownish or yellow-brown between; 

 vertex brown along median suture; forewings clear except an 

 irregular brown area in clavus. The hind wings in this species 

 are long and narrow, about two-thirds as long as forewings, 

 proportionately longer than in most other species of the genus. 



This is one of the large species of the genus, probably having 

 a wide distribution as indicated by its being found in two 

 separated portions of the South Pacific Archipelago. 



Type locality. — Philippine Islands. Occurring also in Bor- 

 neo — Manorg, West Borneo (Muir) , 1 male; Sandakan (Baker), 

 1 male. 



