Brazilian Baring 93 



throughout minute and sparse punctures in one or two irregular series; femora 

 strongly, loosely punctate, the tibiae moderately stout, fluted. Length 3.9-4.3 

 mm.; width 2.7-3.0 mm. Brazil (Chapada). March and October. Two 

 specimens. 



The sexual characters do not affect the head or beak very notice- 

 ably, but are evident on the abdomen in a very unusual way, 

 affecting the sculpture, basal impression and coloration. 



Cryptobaris n. gen. 



The type of this genus is aberrant, when contrasted with other 

 genera of the tribe, in being strongly sculptured, squamulose and 

 subopaque. The pectoral canal also differs, extending only through 

 the mesosternum and not entering the metasternum; the portion 

 involving the mesosternum is broadly concave, much wider than 

 the beak and limited at each side by an elevated ridge. The 

 mandibles are of the usual porrect and internally straight type, 

 but their apices are somewhat more obtuse than in any other. The 

 eyes are very moderate. The antennal club is small, oval, with 

 deep sutures, its three segments subequal in size. The type may 

 be described as follows: 



Cryptobaris sulcata n. sp. — Suboval, convex, uniform rufo-piceous in color 

 throughout, rather shining but with micro-reticulate and partially opaque surface; 

 beak distinctly longer than the head and prothorax, arcuate at base, thence 

 nearly straight to the apex and rather slender (9), or less slender and feebly 

 arcuate (o*), strongly, closely sculptured and opaculate, squamulose basally; eyes 

 separated by the rostral width; entire head closely punctate and opaque; pro- 

 thorax a third (d") to half (9) wider than long, the sides feebly (o 71 ) or more 

 strongly ( 9 ) converging and broadly arcuate, more rounded anteriorly to the 

 tubulate apex, which is three-sevenths as wide as the base; surface strongly 

 punctate, very densely and shallowly so and opaque anteriorly and laterally, 

 more loosely and with more shining interspaces basally, the squamules sparse, 

 yellowish, distinct only toward the sides; median line well defined, polished and 

 smooth; basal lobe small, rounded; scutellum obtrapezoidal, wider than long, 

 flat, the sides feebly, the apex broadly, sinuate; elytra oval, slightly elongate, a 

 fifth wider than the prothorax and less than twice as long, rather obtusely rounded 

 at apex; humeri somewhat narrowly rounded and slightly prominent; grooves 

 very coarse and feebly punctate, opaque, the intervals but little wider than the 

 grooves, strongly and closely, seriately punctate and squamulose; femora rather 

 slender, opaque, finely, sparsely squamulose, the tibia slender; tarsi but little 

 shorter than the tibiae; under surface opaque, finely punctate and sparsely, 

 finely squamulose. Length 2.7 mm.; width 1. 4-1. 45 mm. Brazil (Chapada). 

 November. Three examples. 



The sexual characters in this species are also very remarkable; 

 they affect the head and beak only slightly, but the abdomen in 

 the male has the basal segment broadly and feebly concave, shining 

 and with deep and clearly separated punctures, the second segment 

 with dense shallow punctulation and very opaque surface, except 

 apically. In the female the entire surface of the abdomen is 



