A Centuky of Orthoptera. Decade I. — Gryllides. 

 By Samuel H. Scudder. 



1. Tridactylus raajor. Pale dull yellow, with dull brownish 

 blotches on the front of the head, on the base and tips of the tegmina, 

 and just beyond the middle of the hind femora; intermediate tibias 

 crossed by one stripe, and femora by two stripes; the wings extend a 

 little beyond the abdomen; the fore tibia is dilated, especially toward 

 the extremity, where it is armed with very short spines; the hind 

 tibiae are armed with three laminaj, and protected at the tip by two 

 flattened elongated spines, after the manner of liJdpipteryx; there are 

 no other appendages to the hind tibiiE , although the sculpture of the 

 pleura of the pronotum is like that of Tridactylus, and not that of 

 RMpipteryx. Length .4 in. Bengal. 



2. Trigonidium pactflcum. Dark fuliginous, mouth parts 

 paler; large basal joint of antennae fuliginous; second joint blackish; 



1 See these P/ooeedings, Vol. XI, p. 399. 



