2Q2 Philippine Journal of Science 191S> 



a\ Gena? not produced into conical processes, but somewhat spherically 

 swollen beneath antennal bases and protruding vertex; with a prom- 

 inent dark vitta on each side of head and thorax and extending 

 to tip of each forewing. (Hawaii.) 



C. bivittata Crawford ('18: 454). 



Cerotrioza corniger sp. nov. Plate III, fig. 12. 



Length of body, 1.9 millimeters; forewing, 2.6. General color 

 brown, mottled and banded with yellowish white; vertex with 

 margins and median suture bordered with dirty white ; pronotum 

 with three whitish points ; notum of thorax with irregular stripes 

 and bands of dirty white; abdomen mostly dark brown; legs 

 yellowish, femora with brown spots; antenna? pale brown. 



Head slightly declivous, as broad as thorax; vertex about 

 three-fifths as long as broad between eyes, with a relatively large 

 foveal depression on each side of median line, anterior horns 

 situated over genal cones and about half as long as latter, acute 

 and upturned; front ocellus visible from above; genal cones 

 about half as long as vertex, directed forward, divergent, bluntly 

 pointed, scarcely hairy. Antenna? about one and one-half times 

 as long as width of head, slender. 



Thorax narrow. Legs long and slender, especially the tibiae; 

 hind tibia? with very small basal spur and a larger, black sub- 

 apical spine. Forewings nearly opaque, membrane thickened 

 and whitish or pale brownish with numerous small, dark brown 

 spots all over; broadest subapically but the apex abruptly acutely 

 pointed ; first marginal cell about twice as large as second. 



Abdomen long. Female genital segment nearly as long as 

 abdomen, slender, acutely pointed. 

 Singapore {Baker), 1 female. 



Cerotrioza microceras sp. nov. Plate III, fig. 10. 



Length of body, 2.2 millimeters; forewing, 3.1. General color 

 grayish white with pale brown markings on mesonotum and 

 pleurae; legs pale; antenna? yellowish with black tip; abdomen 

 light brown. 



Head somewhat declivous, not quite as broad as thorax ; ver- 

 tex about three-fourths as long as broad, with an irregular star- 

 shaped depression on each side of median line, a pair of small 

 epiphyses in front adjoining median suture and a larger pair 

 outside of these, the latter scarcely one-fourth as long as genal 

 cones; front ocellus visible from above. Genal cones a little 

 more than half as long as vertex, divergent, bluntly pointed, 

 directed forward, somewhat pubescent. Antenna? a little more 

 than twice as long as width of head. 



