HENRY J. FRANKLIN. 461 



Strongly darkened and thinly clothed with hair. Mesopleura with yel- 

 low pile extending half way from the bases of the wings to the bases 

 of the legs, their lower portions being entirely dark. Metapleura and 

 the sides of the median segment black. 



Abdotnen. — Dorsum : segment one dark ; segment two dark, with 

 slight touches of yellow on the extreme posterior corners ; segment 

 three mostly dark, but with yellow pile on the hind corners and extend- 

 ing from them slightly toward the middle line along the hind margin ; 

 segment four mostly dark, but with the posterior two-thirds of the 

 sides bearing yellow pile, this pile reaching out somewhat towards 

 the middle line along the hind margin, also the very middle of the seg- 

 ment with a very small scattering tuft of yellow hairs ; segment five 

 yellow on the extreme sides, but dark in the middle ; segment six 

 dark, with brownish-ferruginous pubescence at the tip. Venter dark, 

 with brownish-ferruginous pubescence around the apex of the hypo- 

 pygium. 



Wings. — Somewhat stained with brown, but not very dark. 



Legs. — Dark. Hind metatarsi much as in variabilis. 



Dimensions. — Length, 16^ mm. Spread of wings, 37 mm. Width 

 of abdomen at second segment, 1\ mm. 



This specimen resembles the females of P. variabilis quite 

 strongly, except for the yellow pile on the dorsum of the ab- 

 domen, and it may possibly be only a variety of that species. 



Psitliyrus variabilis (Cress.) D. T. 

 Apathus variabilis Cresson, Trans. Amer. Ent. Soc, IV, 1872, p. 284, 

 9 d". 

 " " Cresson, Trans. Amer. Ent. Soc, VII, 1879, p. 230 



(Catal.). 

 " " Cresson, Syn. Hym. No. Amer., 1887, p. 307 



(Catal.). 

 Psithyrus " Dalla Torre, Cat. Hym., X, 1896, p. 573. 



Robertson, Trans. Amer. Ent. Soc, XXIX, 1903, p. 



178, 9 d'. 

 Swenk, Ent. News, XVIII, July, 1907, p. 297, n. 1. 

 " " Cockerell, Trans. Amer. Ent. Soc, XXXII, 1906, p. 



312. 



Types. — Originally described from three females and two 

 males, all from Bosque County, Texas, and in the collection 

 of the American Entomological Society. 



Occiput with a large triangular patch of yellow pile. Dorsum of 

 thorax bearing rather dull yellow pile before and behind, with a black 

 interalar band or with only the disc dark. Pleura dark. Abdomen of 



TRANS. AM. ENT. SOC, XXXVIII. 



