ENDOMYCHIDyE 143 



fourth series; mesosternum as in the preceding; hind tarsi slender, two- 

 thirds as long as the tibiae. Length 1.85 mm.; width 0.9 mm. Penn- 

 sylvania. 



The single male serving as the type of this species has, on each 

 elytron, very near the apex and suture, a small rounded convexity, 

 bearing small and moderately close-set granules, and, on the sutural 

 margin just before the convexity, a sharply elevated tubercle, the 

 summit of which is deeply excavated. The elytra are much longer 

 in proportion to the anterior parts, than in any of the other species. 

 The last joint of the labial palpi, as usual in the genus, is very much 

 inflated. 



Symbiotes pilosus n. sp. Outline narrower, more ovoidal and some- 

 what more convex than in the preceding, very pale yellowish-testaceous 

 in color and polished, the erect pale hairs long and bristling on the elytra; 

 head two-thirds as wide as the prothorax; antennae rather longer than the 

 head and prothorax, the second joint much shorter and narrower than 

 the first; funicle compact, gradually increasing in thickness distally, the 

 third joint quadrate, equal to the fourth or fifth, seventh slightly, the 

 eighth scarcely more, transverse, ninth and tenth obtrapezoidal, wider 

 than long, the eleventh as long as the two preceding, gradually obliquely 

 acuminate at tip; prothorax twice as wide as long, throughout nearly as 

 in the preceding, the cluster of larger punctures very much smaller than 

 in either of the two preceding and inconspicuous; scutellum similarly 

 short and transverse; elytra barely visibly wider than the prothorax and 

 rather less than three times as long, the sides almost evenly arcuate, 

 gradually becoming posteriorly convergent from near basal third, where 

 the width is scarcely perceptibly greater than at base, the outline pos- 

 teriorly elongate-parabolic; lateral gutter behind the humeri unusually 

 broad; punctures very moderate and rather confused in partial series, 

 generally confused posteriorly, the fine subsutural stria broadly impressed 

 anteriorly, but only feebly everted basally; under surface and tarsi as 

 usual. Length 1.7 mm.; width 0.75 mm. New York (Bluff Point, Lake 

 Champlain). 



The single type is probably a female, as I can discover no special 

 marks denoting the male sex, but the outline is very different from 

 that of either of the two preceding species, the hind body being more 

 gradually narrowed behind. 



From St. Vincent, Pennsylvania, I have still another species, also 

 apparently different from any of the others, but unfortunately the 

 head and prothorax are missing; it was taken by P. J. Schmitt. 

 The color is black and the general characters somewhat as in 

 oblongus, but with shorter and more posteriorly narrowed elytra. 



