296 Trans. Acad. Sci. of St. Louis. 



than in the two preceding species, strongly transverse, a fourth wider 

 and one-third longer than the prothorax, the humeri moderately ex- 

 posed at base, narrowly rounded; abdomen narrow, feebly tapering, 

 very evidently narrower than the elytra. Male with a small, posteriorly 

 rounded, low tubercle near the hind margin of the fifth tergite, the 

 tubercle abruptly elevated posteriorly, its surface gradually slopingi 

 expanding and gradually disappearing anteriorly, the sixth with two 

 short stout and inwardly curved processes in median two-flfths of 

 the apex, the bottom of the inclosed sinus with about three undula- 

 tions, each bearing a very minute setose process, the adjacent surface 

 becoming smooth and punctureless near the sinus; female with the 

 sixth tergite evenly and broadly arcuate at tip. Length 1.7-2.0 mm.; 

 width 0.66-0.76 mm. New York (Catskill Mts.) f ascicollis n. sp. 



Form slender, polished, the entire upper surface very feebly micro-reticu- 

 late, the elytra scarcely visibly so, pale flavate in color, the head black- 

 ish but paler toward the middle of the front, the elytra more silvery, 

 without dark maculation, the cloud of the abdomen very diflEuse, pale 

 and barely visible; pronotum somewhat mottled with clouded areas; 

 antennae flavate, extending to the middle of the elytra, rather stout, 

 fifth to seventh joints slightly elongate, eighth to tenth as long as wide 

 to slightly transverse, the eleventh much shorter than the two preced- 

 ing combined; prothorax only very slightly wider than the head, three- 

 fifths wider than long, distinctly obtrapezoidal, nearly as ia fuscicollis; 

 elytra much longer, only slightly transverse, two-fifths wider and three- 

 fifths longer than the prothorax, the humeri widely exposed at base; 

 abdomen much narrower than the elytra, feebly tapering throughout. 

 Male with the fifth tergite wholly unmodified, the sixth without trace 

 of apical processes but with the apex broadly emarginate in median 

 third, the sinus broadly, transversely subrectilinear and unmodified at 

 the bottom and about five times as wide as deep, Its sides marked by 

 distinct obtuse angles, the surface of each being feebly swollen; female 

 wanting. Length 1.9 mm.; width 0.66 mm. New York (Catskill Mts.). 



modesta n. sp. 



11 — Form stouter than in modesta, with smaller head and more transverse 

 elytra and with shorter elytra, smaller head and slightly less develop«d 

 antennae than in antennalis, the inteijuments denser than in either, 

 shining, mlcro-reticulate throughout, flavate, the prothorax bright and 

 immaculate, paler than the elytra, which are more luteo-flavate, the head 

 piceous, the cloud of the abdomen small and very feeble; head small, 

 with a few sparse and distinct punctures at each side, the antennae 

 flivate, rather stout, extending to basal third of the elytra, of the same 

 type as In the four preceding species; prothorax fully two-thirds wider 

 than long, much wider than the head, the sides subparallel and broadly 

 arcuate, the usual punctures distinct but small; elytra strongly trans- 

 verse, two- fifths wider and longer than the prothorax, the humeri 

 rather widely exposed, rounded; abdomen slightly narrower than the 

 elytra, gradually and somewhat strongly tapering from base to apex, 

 with feebly arcuate sides. Male unknown ; female with the sixth ter- 

 gite broadly, evenly rounded at apex. Length 1.75 mm.; width 0.7 

 mm. New York (Catskill Mts.) gilvicollis n. sp. 



