1905. 



NATURAL SCIENCES OF PHILADELPHIA. 



831 



arcuation, ventro-cephalic angle rounded rectangulate. Prosterniim 

 armed with a pair of erect slender spines ; mesosternum with a pair of 

 heavier spines but of the same general form ; metasternum with the coxal 

 lobes produced into blunt trigonal lobes. Tegmina slightly shorter 

 than the pronotum, about half again as long as broad; distal margin 



Fig. IS. Anahropsis costaricensis n. sp. Lateral view of type. (X 2.) 



rotundato-truncate; veins moderately distinct. Wings 

 small, completely hidden under the tegmina. Abdomen 

 compressed, carinate dorsad ; supra-anal plate distorted 

 and true form not ascertainable; cerci arcuate, moder- 

 ately long, somewhat compressed, apex acute; anal fila- 

 ments longer than cerci, tapering; subgenital plate pro- 

 duced, apical margin very shallow and broadly 

 emarginate, styles short, thick, simple, blunt. Cephalic 

 femora slightly longer than the pronotum, unarmed, 

 cephalic tibiae about equal to the femora in length, 

 each dorsal margin armed with one spine mesad and 

 four on each ventral margin; tarsi with the distal joint 

 shorter than the remainder. Median femora of equal 

 length and similar character as the cephalic; median 

 tibiae with two cephalic and three caudal spines on the 

 dorsum and four on each ventral margin; median tarsi 

 with the distal joint shorter than the remainder. 

 Caudal femora slightly longer than the body, strongly 

 inflated proximad and c[uite slender in the distal 



extremely 



Fig. 19. An- 

 ahropsis costa- 

 ricensis n. sp. 

 Dorsal view of 

 head, prono- 

 tum and teg- 

 mina. (X 3.) 



