NORTH AMKUICAN COLEOPTERA. 175 



As I have notliiiig to add to the three species described by Casey, 

 I shall merely give here the synoptic table of species as given by 

 that author, referring the student for full descriptions to the original. 



Capt. Casey separates the species as follows : 



Ungues widely ilivergeiit ; prothurax very nearly as long as wide, ocular lobes 

 not prominent. 

 Prothorax abruptly, deeply constricted near the apex, tlie latter but slightly 

 narrower than the base iiiariiiiniiK. 



Prothorax gradually more strongly narrowed and broadly, feebly constricted 

 toward apex, the latter scarcely more tliau two-thirds as wide as the base. 



Ungues subparallel; prothorax much wider than long, with the ocular lobes 

 prominent Itimatus. 



P. viaritimus Casey. Hub. — California, San Diego. 



P. densus Casey. Hab. — Nebraska (Casey), Kansas (Ulke). 



P.Jwnatus Casey. Hab. — Montana, Dakota (Ulke). 



BIBLIOORAPHY. 



PACHYPHANES n. g. 



1. P. discoideus Lee, Proc. Amer. Philos. Soc. vol. xv, p. 169. 



2. P. carus n. sp. 



3. P. corpulentus Lee. Proc. Amer. Philos. Soc. vol. xv, p. 170. 



4. P. centralis n. sp. 

 r>. P. lateralis n. sp. 



? 



6. P. lineolatus Casey, Coleop. Notices, iv, p. 385. 



7. P. triang-ularis n. sp. 



8. P. amcBnus Say, Tych'ms amoenus, Curcul. 26, ed. Lee. i, p. 294; Gyll. Sch. 



Cure, iii, p. 419. 



DESMORIS Lee. 



1. D. scapalis Lee, Proc. Amer. Philos. Soc. vol. xv, p. 168. 



2. D. compar n. sp. 



3. D. obesus n. sp. 



4. D. montanus n. sp. 

 'i. D. pervisus n. sp. 



6. D. incertus n. sp. 



7. D. floridanus n. sp. 



8. D. constrictus Say, Rhynchasnns constrictus Say, Journal Ac. Nat. Sci. Phila. 



iii, 313; ed. Lee. ii, p. 176; Balaninus vonstr. Say, Cuvc. 26; ed. Lee. i. 

 p. 294 ; Sch. Cure, vii, p. 263 ; Erirh. conatr. Gyll. Sch. Cure. iii. p. 386. 



9. D. sordidus Lee. Smicronyx sord. Proc. Amer. Philos. Soc. vol. xv, p. 173. 

 10. D. humilis n. sp. 



TEANS. AM. ENT. SOC. XXI. JUNE, 1894. 



