H. C. FALL. loT 



depressed along its anterior and posterior margins : first ventral longer than the. 

 metasternum, distinctly and deeply bifoveate at the middle, and with less well 

 defined impressions immediately behind the coxae. Front and middle coxae 

 about equally, and rather narrowly separated. (PI. IV, fig. 29). Length 1 mm. 



Hub. — California (Los Gatos). 



A single example in the Hubbard and Schwarz collection. The 

 nondilated epistoma and elytra, each with six rows of punctures, at 

 once distinguish this very interesting species, which is the most 

 minute in our fauna. The eyes are as small as in filiformis. 



C rilficolli* Marsh. — Moderately elongate, subcon vex, color usually rufo- 

 ferruginous, with the elytra brownish, but occasionally concolorous. Head sub- 

 trapezoidal, a little longer than wide, densely but not coarsely punctate, not im- 

 pressed ; eyes moderate, situated a little before the hind angles; antennae rather 

 short and stout, not reaching the hind margin of the prouotum, club somewhat 

 abrubt, 3-jointed ; first joint large, orbicular; second less thick, elongate-oval; 

 third small and subglobular; fourth to eighth obconic, gradually shorter, but 

 all longer than wide; joints of club of equal width, ninth longer than wide, 

 tenth a little transverse, eleventh as long as the ninth. Prothorax subcordiform, 

 often with membranous margins; without the margin slightly wider than the head, 

 sides rather strongly rounded anteriorly, quite deeply incised or constricted poste- 

 riorly, transversely impressed between the points of constriction ; disk otherwise 

 without foveae or costae, surface densely, rather finely punctate, side margin not 

 well defined. Elytra elongate-oval, each with seven rows of coarse, closely-placed 

 punctures, which are sometimes a little confused on the disk; intervals narrow, 

 crenulate by the punctures, plane or very feebly convex, except the sixth, which 

 is slightly more prominent. Beneath impunctate, the metasternum with a trans- 

 verse groove behind the coxae, which is deeper at the extremities. Front and 

 middle coxae well separated ; legs rather stout. (PI. IV, fig. 30). Length 1-1.2 mm. 



Hub. — Massachusetts (Blanchard) ; New York; Pennsylvania; 

 Virginia; Oregon (Astoria — Hubbard and Schwarz). 



A common species throughout Europe, and one that is likely to 

 become quite cosmopolitan. 



<J. costulata Reitt. — Elongate, subconvex, rufotestaceous. Head distinctly 

 longer than wide, sides moderately convergent from the eyes to the epistoma. 

 which is a little dilated at sides; labrum distinctly emarginate ; eyes small, situ- 

 ated at their own length from the basal angles, which are nearly right; surface 

 finely subrugosely punctate, in some examples with a faint median longitudinal 

 impression, w T hieh may be better defined, especially anteriorly, by very fine 

 elevated lines. Antennae shorter than the head and prothorax, joints 3-8 all 

 evidently longer than wide, club rather abruptly o-jointed, the ninth and 

 eleventh longer than wide, the tenth as wide as long. Prothorax fully one-half 

 wider than the head, distinctly transverse, sides rounded anteriorly, moderately 

 convergent and nearly straight, or slightly sinuate from about the middle to the 

 hind angles, which are slightly obtuse; side margin rather broadly explanate or 

 suhexplanate, disk not or but very faintly impressed at the middle anteriorly, 



TRANS. AM. ENT. SOC. XXVI. (18) NOVK..M15EK. 1899. 



