250 C UKC ULIOXID JE. 



[IieConte. 



base and tip of the elytra; small, erect bristles are intermixed, forming- 

 tufts on the prothorax, and rows on the elytra. Prothorax as wide as long, 

 sides parallel for two-thirds the length, strongly narrowed in front and 

 deeply constricted; disc uneven, deeply and broadly channeled, with four 

 conspicuous tufts of black bristles. Elytra at base nearly twice as wide as 

 prothorax; humeri prominent, rounded; striae not very distinct; third, fifth 

 and seventh interspaces slightly elevated; the base and tip are dark brown, 

 with an intermediate, very broad, slightly variegated band of pale brown ; 

 there is also a short, pale line at the base of the third interspace. Beneath 

 densely punctured; punctures of first ventral segment coarser. Length 

 4. 6 mm.; .18 inch. 



Missouri, (Schuster); Georgia, Texas, (Belfrage). This species differs re- 

 markably from all others known to me by the head being convex behind, 

 and deeply concave between the eyes, so that the base of the beak appears 

 gibbous. Judging from a MS. drawing of my father, this is Gryptorhynchns 

 undatus -j-Dej. Cat. 



CRYPTORHYNCHUS 111. 



The species are numerous, and as very properly suggested by Lacordaire 

 need subdivision into several genera. The peculiar modifications of struc- 

 ture noted by him are not represented in our fauna, and the species men- 

 tioned below seem to agree in all characters of importance. They may 

 be divided into groups, commencing with those species which more nearly 

 resemble in form Conotrachelus. 



A. Antennae slender, second joint of funicle as long as the first ; 3-7 

 diminishing gradually in length, club indistinctly annulated. 



a. Elytra suddenly wider than prothorax at base ; prothorax carinate. 



* Thighs straight beneath Sp. 1-3. 



** Thighs sinuate near the tip Sp. 4. 



b. Elytra but little wider at base than the prothorax : 



* Prothorax strongly constricted at tip Sp. 5-8. 



** Prothorax carinate, feebly constricted at tip Sp. 9. 



B. Antennae stouter, funicle with joints 2-7 equal in length, 



gradually broader, club very distinctly annulated Sp. 1O-11. 



DIVISION A a*. 



The species of this division bear a general resemblance to Conotrachelus 

 in consequence of the elytra being suddenly wider than the prothorax, 

 and the humeral angles prominent, rectangular and rounded ; the sides 

 gradually taper behind. The prothorax is strongly carinate, gradually 

 narrowed from the base forwards, strongly constricted near the tip, 

 with not very well-marked postocular lobes. The beak is slender, 

 longer than the prothorax, curved, cylindrical, carinate, and striate at base. 

 The antennae are elongate, the funicle is slender, with the second joint 

 as long as the first, and the following gradually diminish in length and 



