CURCULIONIDES. 



The covering of white hairs, with the three denuded spots dis- 

 tinguish this species. I have obtained it in Indiana as well as in 

 Pennsylvania. 



2. B. picuMNUs Herbst. Natursyst. 



Vol.7, p. 30, pi. 99, f. 9. This is a common species. The 

 third joint of the antenna? is hardly longer than the fourth. The 

 covering of hairs is more dense than in the preceding species. 



[Belongs to Centrums Sch. — Leg.] 



3. B. PENICELLUS Herbst. Natursyst, vol. 7; p. 29, pi !•!• 

 6F. 



Much like the preceding, but larger, and the third joint of the 

 antennae is as long again as the fourth. I described it under the 

 name of am ictus, but I have little doubt that it is the species de- 

 scribed by Herbst. Genus Toxerus Sch.? holosericeous Sch. Dej. 



[Also a Centrums. — Lec] 



4. B. UNDULATUS. — Black; elytra with two undulation- 

 Inhabits Mexico. 



Body black; head with small punctures, sparse on the v< 

 more dense on the rostrum: rostrum arquated : thorax a little 

 compressed each side on the anterior margin: with rather large 

 confluent lateral punctures and smaller sparse ones on the disk : 

 elytra with capillary impunctured strice, becoming rather dilated 

 at tip; interstitial spaces flat, with numerous transverse lines, a 

 dilated indentation or undulation before the middle, and rather 

 behind the middle, a less obvious indentation near the tip. 



Length over one-fifth of an inch. 



Var. a. Body dark brassy polished; undulations of the i 

 obsolete. 



Length less than three-twentieths of an inch. 



The pectoral groove is very distinct, but the antenna? ai 

 robust, and the club is too obtuse to be placed in the genus 

 trinus, and the fusiform club of Madams will not permit a 

 ence to that genus. 



5. B. striatus. — Interstitial lines hardly wider than the 

 and with a single series of punctures. 



Inhabits United States. 



Body black, punctured : rostrum a little prominent al il 

 sertion of the antennas on each side; more or less transversely in- 



