Vol. 32, pp. 211-212 December 31, 1919 



PROCEEDINGS 



OF THE 



BIOLOGICAL SOCIETY OF WASHINGTON 



A NEW SOLPUGID FROM PANAMA. 

 BY RALPH V. CHAMBERLIN. 



The new solpugid described below is based upon two females 

 collected by Mr. H. F. Dietz in the nest of a termite on Taboga 

 Id., Republic of Panama, and transmitted to me for identifica- 

 tion by Mr. Thomas E. Snyder. In general structure and ap- 

 pearance the form resembles Ammotrecha cubae (Lucas); but, 

 aside from differences in coloration, such as the darker color of 

 chelicerae, cephalothorax and third legs, it differs in the armature 

 of the pedipalps, the metatarsus bearing along each inferior edge 

 a series of five spines instead of four, with numerous cylindrical 

 setae intervening instead of these being absent. It also differs in 

 the more pronounced ridge on the upper finger of the chelicerae 

 above. It differs similarly from the South American A. geni- 

 culata (C. L. Koch). It approaches the Central American A. 

 stolli (Pocock) ; but the tibia of the pedipalps bears cylindrical 

 setae beneath (female) instead of their being absent, the eyes 

 are more widely separated, the ocular tubercle lacks the median 

 pale stripe, the abdomen is not colored below the longitudinal 

 furrow on each side, etc. 



Ammotrecha tabogana, sp. nov. 



Chelicerae above and laterally dusky over yellow with a dark line along 

 each side above and a middorsal dark line, ventrally yellow; fingers rufous 

 proximally, dark or blackish distally. Cephalothorax dusky over a yellow 

 ground, with the color deeper, more solid, over the anterior and lateral 

 borders, and a dark line running from the dark border at each antero-lateral 

 corner mesocaudad to a median longitudinal pale line. Eye tubercle black, 

 not divided by a longitudinal palejline. Abdomen pale yellow to dark gray- 

 ish yellow excepting a stripe on each side above the longitudinal furrow com- 

 posed of a series of dark, chocolate-brown spots, the color of the latter not 

 at all extending below the furrow. Femur of pedipalps yellow, more or 

 less darkened distally; tibia, metatarsus and tarsus abruptly darker, dusky 



43— Pboc. Biol. Soc. Wash., Vol. 32, 1919. (211) 



