BEMBIDIIISLE 189 



tra; prothorax much larger than in tripunctata and more distinctly 

 wider at base than at apex, widest less anteriorly, the sides broadly 

 rounded, straighter basally, the angles minutely subprominent, with 

 rather distinct carina; three subbasal punctures strong and isolated, 

 the fine sulcus connecting the lateral of the punctures with the 

 moderate foveae not punctate; elytra one-half longer than wide, 

 fully a third wider than the prothorax, rather gradually narrowly 

 ogival in posterior two-fifths; striae not evidently punctulate, there 

 being but feeble traces visible under high amplification; sutural 

 stria attaining the base, the four others abbreviated, distinct, grad- 

 ually diminishing; foveae near two and four sevenths. Length 2.2- 

 2.5 mm.; width 0.78-0.9 mm. Pennsylvania and North Carolina 

 (Asheville) to Iowa (Keokuk) vivax Lee. 



Form more oblong-oval, rather less convex, polished, rufous in color, the 

 elytra behind nubilously more flavate externally; head relatively 

 larger and with larger, more prominent eyes, nearly t\vo-thirds as 

 wide as the prothorax; antennae flavo-testaceous, about two-thirds 

 as long as the elytra; prothorax much smaller than in vivax, about 

 as in tripunctata in that respect, but with the sides more broadly 

 rounded, almost exactly as in vivax; base much wider than the apex, 

 the angles rather more than right but sharp, the carina small; three 

 subbasal punctures and lateral oblique sulci as in vivax; elytra almost 

 three-fifths longer than wide, fully two-fifths wider than the pro- 

 thorax, gradually ogival in about apical two-fifths; striae only slight- 

 ly irregular but not punctulate, the sutural slightly abbreviated at 

 base, the second and third distinct, but not so deep as in tripunctata 

 or vivax, the others feebly glimpsible; foveae at basal and before 

 apical third. Length 2.5 mm.; width 0.9 mm. Texas (Laredo). 

 One example laredoana n. sp. 



Form elongate-suboval, only moderately convex, uniformly dark red- 

 brown throughout; head two-thirds as wide as the prothorax, with 

 minute anterior strioles and very moderate eyes; antennae fusco- 

 testaceous, rather more than two-thirds as long as the elytra; pro- 

 thorax relatively small, fully two-fifths wider than long and widest 

 near two-fifths from the apex, the sides broadly rounded, feebly 

 converging and straight basally, the angles minutely subprominent, 

 with the carina short; base slightly wider than the apex; middle sub- 

 basal puncture distinct, isolated, the lateral forming the ends of 

 the punctured sulcus thence to the foveae not very strongly de- 

 veloped; foveae almost completely obsolete; elytra oblong-oval, with 

 arcuate sides, fully one-half longer than wide and about one-half 

 wider than the prothorax, rather rapidly ogival behind; striae 

 smooth, the sutural abbreviated at base, the second much abbre- 

 viated behind but almost as deep, the third short but distinct, those 

 beyond faintly glimpsible; foveae at basal and before apical third. 

 Length 2.3 mm.; width 0.88 mm. New York (Bluff Point, Lake 

 Champlain). One example serva n. sp. 



The species described above as mellita is of notably distinct hab- 

 itus, but I fail to find any reference to it in the works of Mr. Bates. 



