— 23i — 



que, finely and rather irregularly punctate rugose; declivity of 

 epinotum smoother and more shining; postpetiole with a few in- 

 distinct longitudinal furrows. Gaster and legs shining, the former 

 very finely shagreened and with small, scattered, piligerous punc- 

 tures. Antennal scapes opaque, punctate and rugulose. 



Hairs yellowish, very long, suberect, uniformly abundant on 

 the body, legs and scapes. 



Reddish-brown; mandibles and legs yellowish, the inner bor- 

 ders of the latter and anterior border of clypeus, black; gaster 

 dark brown or blackish, the posterior margins of its segments 

 yellowish. 



Described from ten specimens taken at Jalapa. 



This species is rather closely related to Ph. hyattl Emery, 

 titanh Wheeler, cocker eUl Wh. and. texana Wh., but differs 

 from all of these in the greater length of its antennal scapes and 

 petiolar peduncle and in the longer, coarser hair covering the 

 body and appendages. From liyatti and fi fan is, confoedusta al- 

 so differs in the denser, more opaque sculpture of the head, from 

 the latter in its much smaller size, from cockereili and fexana 

 in the proportionally smaller size of the head, more slender tho- 

 rax and more rounded humeri. 



16 — Cremastogaster formosa Mayr. var. aterrima var. nov. 

 Worker. Length 3. 5-4 mm. 



Agreeing very closely with Mayr's description of foi'mosa ex- 

 cept in color, Whole body deep black, except the terminal tarsal 

 joints, which are brownish. Frontal groove prolonged behind to the 

 occiput as a faint impression. Mesonotum convex and rounded; 

 epinotal spines long and divergent, but shorter than the distance 

 between their bases, rather suddenly tapering, pointed and slightly 

 curved upward. Posterior angles of petiole small and acute. Clroove 

 in postpetiole very feeble. Hairs and pubescence whitish, very 

 sparse 



Male, Length 3 mm. 



Mandibles tridentate Antennae short. Head, including the eyes, 

 broader than long; cheeks extremely short. Thorax large, with 

 very convex pronotum; epinotum small, unarmed, rounded, with 



