238 Journal Xew York Extomological Society. [Vol. xxii. 



A very remarkable little species, approaching the genus Ebhiil 

 Walk., in the structure of the posterior process, but differing in the 

 character of the head and legs, and having the wing venation of a 

 true Gargara. May be recognized at once by the sinuate and elevated 

 posterior process and the very large prominent eyes and ocelli. 



8. Tricentnis decurvatus new species. 



Dark castaneous brown; finely punctate; densely pubescent with long 

 golden hatrs. Head as long as broad ; clypeus almost square ; eyes reddish ; 

 ocelli small, yellow, situated on a line passing through center of eyes. Pro- 

 notum high : horns triquerate, projecting almost directly outward just as far 

 as the humeral angles, very slightly turned upward and backward, anterior 

 edge rounded and posterior almost straight as seen from above ; percurrent 

 median carina strongest on posterior process ; posterior process narrow, de- 

 curved, extending almost to tips of tegmina, sharply carinate above. Tegmina 

 fuscous-hyaline, base opaque and punctured. Under parts of body and legs 

 reddish ; tibiae somewhat swollen ; small white granule in joint between femur 

 and tiljia on each leg. Type, female. Length, 6 nun. ; width, between ex- 

 tremities of horns, 3 mm. 



Locality : Dutch New Guinea. ■ 



Near T. gibbosulus Walk., as I determine that species, but larger, 

 of a different color, and at once recognized by the very long, de- 

 curved, pronotal process. 



The genus Tricentnis is one of the most common genera in this 

 part of the world. It is near Gargara but clearly set off from that 

 genus by the presence of pronotal horns and the armed posterior 

 trochanters. 



9. Tricentrus banguensis new species. 



Rich chocolate brown; punctate; finely pubescent. Head equally as long 

 as broad, smooth, clypeus projecting for half its length below line of cheeks; 

 eyes clear lemon yellow ; ocelli yellow-white, situated above a line passing 

 through center of eyes. Humeral horns extending strongly outward and up- 

 ward, and slightly backward, as long as the distance between their bases, 

 faintly bicarinate below. Posterior process slender, gradually acuminate, fur- 

 nished with median carina which extends obsoletely through pronotum, tip of 

 process reaching internal angle of tegmina. Tegmina smoky subhyaline, 

 brown and punctate at base, veins brown, costal region slightly pilose. Under 

 surface of body densely pubescent. Abdomen, legs and feet ferruginous. 

 Type, female. Length, 5 mm.; width, between extremities of horns, 3 mm. 



Locality: Ranguey Island. 



Near T. ciineatus Dist., but smaller, and distinct in the character 

 of the posterior process. 



