Baring 337 



wide, barely at all wider than the prothorax and three-fourths longer, the 

 parallel sides feebly arcuate, gradually rounding behind, the apex obtuse; 

 humeral callus moderate; grooves moderate, coarser latero-basally, the 

 intervals twice as wide as the grooves, the second and third wider, all 

 with single series of minute and remotely spaced punctures, the setae 

 very small; abdomen finely, sparsely punctate, only a little less so 

 laterally, the male with a feeble triangular medio-basal impression con- 

 fined to the first segment. Length (cf") 2.6 mm.; width i.o mm. Texas 

 (Austin). One specimen. 



This species is is also to be associated with area, but differs in its 

 more parallel and narrower outline and very much shorter and 

 more transverse prothorax. 



Baris novella n. sp. — Suboval, convex, shining, black, the elytra and 

 legs with the faintest possible piceous tinge; beak in the female moder- 

 ately arcuate, finely, somewhat closely punctulate and two-thirds as 

 long as the prothorax, which is between a third and fourth wider than 

 long, with broadly, subevenly arcuate sides, more converging apically, 

 becoming parallel basally, the apical constriction very faint; punctures 

 rather coarse, deep, cribrate, separated by half their diameters or less, 

 finer medio-apically, dense and longitudinally confluent at the sides, the 

 median smooth line narrow, not entire, the lobe unusually abrupt, not 

 large but strongly marked; scutellum minute, rounded and impressed; 

 elytra a third longer than wide, distinctly wider than the prothorax and 

 two-thirds longer, with the sides converging and broadly arcuate to the 

 moderately obtuse apex, the humeri prominent; grooves coarse and deep, 

 not crenate; intervals a third wider than the grooves, each with a single 

 frequently subimpressed series of coarse and very close-set punctures, 

 the third wider and with finer and confused punctures; abdomen with 

 only moderately coarse though deep and notably dense punctures. 

 Length (9) 3.3 mm.; width 1.35 mm. Missouri (St. Louis), — Schuster. 



At first glance this species might be thought alHed to socialis, 

 but the sculpture is much coarser and denser, and there is in reality 

 no close affinity in any direction. 



Baris cauta n. sp. — Oblong-suboval, convex, shining, black throughout, 

 without metallic lustre; beak in the apparent female short, straight in 

 inferior, arcuate in superior, outline, two-thirds as long as the prothorax 

 and somewhat closely punctulate; prothorax nearly a fourth wider than 

 long, the sides notably converging and almost straight, rapidly rounding 

 and oblique in apical fourth; punctures notably coarse and close-set, 

 cribrate, coalescent laterally, the median smooth line obliterated; basal 

 lobe moderate, the scutellum small, narrowly subcanaliculate; elytra a 

 third longer than wide, only slightly wider than the prothorax and three- 

 fourths longer, the sides feebly converging and slightly arcuate to the 

 rapidly obtuse apex, the humeral callus not large, rather prominent; 

 grooves coarse, very deep, not crenate; intervals barely one-half wider 

 than the grooves, each with a single series of somewhat coarse, rather 

 T. L. Casey, Mem. Col. IX, Feb. 1920. 



