74 Philippine Journal of Science »» 



c\ Scutellar spine but slightly longer than scutellum; height of head 



above eye equal to depth of eye G. turbinata Schmidt. 



c\ Scutellar spine a half or nearly a half longer than scutellum ; height 

 of head above eye greater than depth of eye (Plate II, fig. 14; 



Plate III, figs. 2 and 6) G. tricolor sp. nov. 



6 2 . Scutellar spine strongly decurved, its apex near apex of tegmina; 

 height of head above eye much less than depth of eye (Plate II, 

 figs. 12 and 15; Plate III, figs. 3, 7, 9) G. breviceps sp. nov. 



G-iypomachasrota borneensis sp. nov. 



Female. — Length to end of abdomen, 5 millimeters; to ends 

 of tegmina, 6.5 ; to end of spine, 7. 



Stramineous ; lower part of face, sternum, and venter piceous, 

 the latter sometimes paler; frons piceous basally and apically, 

 the middle two-fourths stramineous, and each side with eight 

 naiTow oblique piceous stripes; vertex dark brown except the 

 stramineous superior cheek area?, an area connecting ocelli, and 

 the postocular arese. Punctures of pronotum brown, this ren- 

 dering conspicuous the stramineous reticula, median carina," 

 and posterolateral borders. Scutellum and base and lower bor- 

 der of spine pale brown; lateral pale stripes on body of scu- 

 tellum straight, oblique, passing backward and upward to beyond 

 middle; median dorsal line on body of scutellum and entire upper 

 portion of spine except at base (where it is piceous), strami- 

 neous ; posterior margin of body of scutellum shortly and broadly 

 yellowish and immediately above this piceous; the inferolateral 

 border also narrowly yellowish. Tegmina slightly suffused with 

 stramineous apically, the veins brown to piceous. Legs brown 

 to piceous, apices of femora and nearly all of tibiae stramineous. 



Frons finely, transversely, rugosely wrinkled and shining, more 

 coarsely sculptured below and on clypeus; frons evenly convex 

 on lower half, but with a strong median carina on upper half, 

 this reaching the upper angle of appendage, where the lateral 

 margins are also sharply carinate. Vertex horizontally rugose, 

 with a median carina which apically becomes sharply raised and 

 double ; lateral arese of frontal portion of vertex concave. Pro- 

 notum coarsely reticulate-punctate except near anterior border, 

 the reticula not sharp; four small, depressed, oblique, finely 

 sculptured arese near fore margin as in Machserota. Scutellum 

 sculptured like pronotum, the furrow cross wrinkled and with 

 the upper carina of spine scarcely entering it; spine at base 

 with lateral disks sharply longitudinally depressed, its point 1.5 

 millimeters above apex of tegmina. 



This is a common species at Sandakan, British North Borneo. 



