H. C. FALL 469 



(Lo(ling); Grand Bay (Loding in Bowditch Coll.). Virginia: Falls Church 

 (Bowditch Coll.). District of Columbia: Washington, June 27 (Hubbard & 

 Sehwarz ) . 



Bowditch also refers to this species certain females from 

 Georgia, North Carolina a nil Pennsylvania, but there is possibly 

 some uncertainty about identifications here. 



Tn the type the yellow marks on the elytra are broader than in 

 any example before me, so that Bowditch has described the 

 elytra as yellow with broad confluent standard spots. 



This species is tabulated both among the black and the mottled 

 forms and in either case should be readily recognized by the 

 tabular characters. 



150. Pachybrachys luridus Fabricius 



Of more tlian average size, dull black, densely coarsely punc- 

 tured, elytra mottled with yellowy especially toward the sides, 

 prothorax with anterior median line and sides red or reddish 

 yellow, varying to elytra entirely yellow (var. festivus) or the 

 whole insect entirely black (var. nigrinus), or black with the 

 thorax almost entirely red. Eyes separated in the male by a 

 distance not much greater than the length of the basal antennal 

 joint; no ocular lines; front claws of male much enlarged. Ave. 

 length 3.5 mm. United States and Canada westward to the 

 Rocky ^Mountains. 



Head not wider than the thoraeic apex, densely coarsely punctate, median 

 line impressed superiorly, entirely black or with two yellow spots between the 

 eyes. Eyes not at all prominent, separated in the male by about the length of 

 the first two antennal joints, or by a distance rather less than the vertical width 

 of their upper lobes; in the female by barely twice the length of the basal anten- 

 nal joint. Antennae thin, nearly as long as the body in the male, the tenth 

 joinf at least four times as long as wide in the male. 



Prothorax strongly arcuately narrowed to the front, sides rounded in a little 

 behind, surface densely coarsely punctured to the margins, the punctures 

 sometimes showing a tendency to become longitudinally confiuent medio- 

 laterally. 



Elytra with the disk broailly confusedly coarsely punctate, with more or 

 less distinct striae; at sides and rear, shield small, sometimes distinct, some- 

 times not; marginal interspace narrow, convex, with few to many punctures. 



Pygidium and body beneath black. Legs black, front thighs often with an 

 oval yellow spot, middle and hind thighs pale at base and apex in the hghter 

 colored exami)les. 



Length 2.75 to 4 mm.; width 1.5 to 2.35 mm. 



TRANS. AM. ENT. SOC, XLI. 



