334 NORTH AMERICAN MUTILLIDAE 



with an obscure inferior carina; pedicel about as long as broad, about two- 

 thirds the length of the first segment of the flagellum, which is about two-thirds 

 the length of the second; the latter a little exceeding the third; pechcel and 

 flagellum puberulent. 



Humeral angles absent ; pronotum without differentiated dorsal and cephalic 

 surfaces, more coarsely punctured than the front, the punctures not confluent; 

 mesonotum similarly punctured, scutellum more closely; mesopleura, except 

 for a small anterior area, with coarse round punctures; mesosternum ante- 

 riorly on each side with an oblique elevated ridge or mamilla, behind which it 

 is concave; mesopleura without coarse punctures, except a few near the coxae, 

 feebly polished, with sparse very minute punctulations, bearing short hairs; 

 propodeum posteriorly with coarse shallow reticulations, and with a median, 

 basal, smooth area, bounded laterally and traversed medially by carinae; 

 punctate portions of the thorax, except the mesonotum, with sparse, erect, 

 white hairs, longest on the propodeum and pronotum; mesonotum covered 

 with shorter, suberect, sparse, reddish mixed with black hairs; most parts of 

 the thorax with short, white, inconspicuous pubescence, giving in fortunate 

 lights a silvery sheen. 



Forewings hyaline at base, a weakly fuscous band crossing them at the 

 region of the stigma, becoming almost hyaline again at the apex; the cell R4 

 (third submarginal) not enclosed; hind wings clouded toward the apex. 



Legs, except the coxae and trochanters posteriorly, dark Ijrown; the coxae, 

 trochanters and femora covered with erect, sparse, white hairs; the tibiae and 

 tarsi with denser, less erect, white pubescence; longer calcarium of the posterior 

 tibiae about two-thirds the length of the metatarsus, white. 



First segment of the abdomen, seen from above, rather long, much widened 

 apically, distinctly smaller at its apex than the basal part of the second seg- 

 ment, the two with an evident constriction between; as seen from the side the 

 former is very convex, distinctly nodose above, and strongly constricted at apex, 

 especially so dorsally ; dorsally it bears a couple of short carinae at the base, and 

 for the most part is sparsely and very shallowly punctate; ventrally it is roughly 

 and rather coarsely punctured, the carina distinct only anteriorly, where it is 

 rectangularly truncate ; the second dorsal segment is polished and shining, with 

 sparse, very shallow, small, setigerous punctures, along the apex with close 

 very minute punctulations; exposed portions of the remaining dorsal segments 

 except the last with close very minute punctulations; exposed portion of the 

 last dorsal segment with a triangular area on each side at base coarsely punc- 

 tured, and bearing erect bristles, remainder smooth and polished, except for 

 fine punctulations at the apex; second ventral segment with sparse shallow 

 punctures, except at apex, among these more or less minute punctulations; apex 

 of this and exposed parts of remaining ventral segments except the last with 

 minute punctulations; last ventral segment polished and shining, with sparse 

 round punctures, and without processes; petiole and base of second segment 

 with sparse, erect, white hairs, rest of second segment with shorter, suberect, 

 whitish hairs; remaining segments with bristly, white, and some black hairs. 



Length of the type, 10 mm.; of forewing, 6.5 mm.; length of paratype, 7 mm. 

 The abdomen is distinctly longer than the head and thorax united. 



