H. C. FALL. 139 



C argus Reitt. — Linear, suhdepressed, rufotestaceous. Head subtriangular, 

 densely punctate, broadly, feebly impressed between the eyes, the latter very 

 large for the genus, occupying the hind angles; tempo ra entirely wanting; epis- 

 toma moderately dilated at sides, lab rum arcuate in front; antennae short, joints 

 3-8 submoniliform, not very different in size ; club abruptly 3-jointed, joints nine 

 and ten slightly transverse. Prothorax transversely cordate, base and apex sub- 

 equal ; side margin explanate; surface densely punctate, without discal fovea, 

 posterior transverse impression strong and marked by a deeper fovea at its 

 middle. Elytra slightly wider than the prothorax, the margin somewhat 

 obtusely angulate at the humeri, each, with eight rows of punctures; intervals 

 narrow, nearly uniform, the seventh slightly more convex. Beneath subimpunc- 

 tate ; metasternum with a slightly curved longitudinal impressed line extending 

 forward from the inner margin of the bind coxa- for about two-thirds its length. 

 First ventral bifoveate between the coxse and with a transverse impressed line 

 near the middle of its length extending from the side margin nearly to the 

 median line. Front coxse separated by fully half their width, middle coxse by 

 about their own width. (PI. IV, fig. 33). Length 1.3 mm. 



Hab. — Michigan (Detroit); Montana (Bonner); Oregon (Le 

 Grande — "in ground cereals"); California (Pomona — on strips of 

 drying yucca pith). It occurs in many parts of Southern Europe, 

 also in Algeria. 



The very large eyes occupying the hind angles of the head, and 

 consequent lack of tempora, make this species easy of recognition 

 among those with 3-jointed antennal club. 



C. intermedia Belon. — So far as I can discover there is nothing to sepa- 

 rate this species from filum, except the absence of the anterior discal fovea of the 

 pronotum. In the considerable number of species of filum examined, the depth 

 of the fovea varies considerably, and I should not be surprised if intermedia 

 merely represented an extreme variation of this sort. I have, however, seen no 

 examples in which the fovea is lacking. Length 1.3 mm. 



Hab. — "Amer. Sept." 



V>. filum Aube. — Linear, subdepressed, rufotestaceous. Head but slightly 

 longer than wide, subtriangular, with a quite sharply impressed, median, longitu- 

 dinal sulcus, which is gradually wider posteriorly ; surface more or less rugosely 

 punctate, the groove smoother; labrum rounded in front, epistoma moderately 

 dilated at sides; eyes large, occupying the hind angles. Antenna? a little longer 

 and more slender than in filiformis, joints 3-9subequal and evidently longer than 

 wide; club 2-jointed, the joints of about equal width and both longer than wide. 

 Prothorax transversely cordate, sides a little sinuate posteriorly; margin expla- 

 nate, edge not or scarcely crenulate ; surface more or less rugosely punctate, a 

 rather large anterior discal fovea which varies in depth, and a transverse sub- 

 basal sulcus which sometimes contains a median fovea. Elytra sublinear, each 

 with seven rows of rather deep, rounded punctures, the intervals nearly equally 

 subcouvex, the outer ones as usual tending to become a little more prominent, 

 Beneath subimpunctate, the metasternum and abdomen polished ; the former 

 with a rounded or subcordate median area, which is defined by a deep groove. 



TRANS. AM. ENT. SOC. XXVI. NOVEMBER, 1899. 



