J. CHESTER BRADLEY 121 



This male has the abdomen entirely red, and is only 5.5 mm. 

 long. In other respects it agrees with mendicus, and with the 

 type of pidifrons Fox. It lacks the Ixasal striae in the enclosed 

 area of the propodeuni. 

 Gorytes (Arpactus) albitomentosus new species 



9 . Black and rufous species, conspicuously and magnificently ornate with 

 white tomentose pubescence. The following; parts are black: head, meso- 

 notum except lateral angles, fourth and fifth dorsal, fourth, fifth and sixth 

 ventral segments, tip of posterior tibiae and their tarsi; the following are 

 pale yellow: scape, except above, base of mandibles, clypeus except median 

 basal spot, and short stripe along eyes below; the flagellum is brown above, 

 ferruginous beneath, the rest is rufous (Brazil red). Except on the meso- 

 notum, and in part on last three abdominal segments, strongly white pruinous 

 to tomentose, a strong dense tomentose band on the posterior margin of 

 pronotum and of the first three dorsal segment, and a patch occupying the 

 disc of the fifth dorsal segment, pile also especially conspicuous on the meso- 

 pleura, sternum, coxae and basal ventral segments; except for the patch noted 

 above, the fourth and fifth dorsal segments are covered with short, ai)pressed, 

 black pubescence. Wings weakly infuscated, without spots. Length, 8.5 mm. 



Slender; face much narrowed below; a few small punctures on lower part 

 of front and between the ocelli; antennae slender but not long. 



Mesonotum impunctate, polished, as are the mesopleura wherever the 

 pile is rubbed off; scutellum obscured by vestiture; epicnemia rounded into 

 the mesopleura and mesosternum, separated from the former but not from 

 the latter by a groove, largely obscured by vestiture, which is continuous 

 with the groove separating the mesopleura from the sternum; enclosvu'e of 

 propodeuni polished, shining, not striate, with a deep median groove. 



Tarsal comb long. Second submarginal cell receiving both recurrent veins 

 comparatively close to one another; in the hintl wings the cubitus arises 

 beyond, but not far distant from, the apex of the submedian cell. 



The first segment of the abdomen is subpetiolate ; the fifth segment almost 

 covers the pygidium, which is scarcely margined and smooth; the abdomen 

 is not punctate. 



cf. The male sex has much more black or dark rufous on the thorax, and 

 the third abdominal segment black; the fourth dorsal segment has a white 

 tomentose apical band, like the others, and the fifth has a band rather than 

 a spot; the scape is black beneath, and also the face and clypeus, except for 

 obscure lines along the eyes; there are some yellow markings on the forelegs. 



The seventh antenna! segment is nodose beneath, and the tenth distinctly 

 notched, the ultimate is simple. The fifth dorsal segment is hood-like and 

 almost covers the sixth, which is in turn rounded or hood-shaped at apex 

 and exposes only a mere dp of the seventh. 



Habitat. — California: Brawley, Imperial County, August 9, 

 1914, two males, two females, (the author), [Cornell University]; 



TRANS. AM. ENT. SOC, XLVI. 



