416 PROCEEDINGS OF THE NATIONAL MUSEUM. \ol. 45. 



Genus STAMODERES Casey (1888). 



Mimetes Schonherr, Mantiss. Sec. Cure, 1847, p. 23 [not Eschscholtz, 1818]. 

 Stamoderes Casey, Ann. New York Acad. Sci., vol. 4, 1888, p. 236. 



The type of Schonherr' s preoccupied genus is setulosus (Schonherr) 

 Lacordaire. The monotype of Casey's genus is unijonmis Casey. 

 Colonel Casey ^ has pointed out the possibility of these genera being 

 synonymous and the descriptions would so indicate. Both species 

 are Calif ornian and are possibly synonymous also. The only mate- 

 rial at hand may be considered setulosus. It is from Scotia, Cali- 

 fornia, May 20 (H. Soltau), and was formerly placed by the writer 

 under the name seniculus Horn. 



In appearance this genus is nearer the group Artipi, but the 

 available characters place it close to Epicserus. 



Genus OMILEUS Horn (1876). 

 Omileus Horn, Proc. Amer. Philos. Soc, vol. 15, 1876, p. 102. 



The monotype of the genus is epicseroides Horn. 



Genus PANTOMORUS Schonherr (1840). 



Pantomorus Schonherr, Gen. et Sp. Cure, vol. 5, 1840, p. 942. 

 Aramigus Horn, Proc. Amer. Philos. Soc, vol. 15, 1876, p. 93. 

 Phacepholis Horn, Proc. Amer. Philos. Soc, vol. 15, 1876, p. 95. 



An examination of the typical species of Pantomorus (albosignatus 

 Boheman), Ai-amigus (tesselatus Say), and Phacepholis (elegans Horn) 

 causes the writer to consider these genera identical, as Champion has 

 already stated in the Biologia Centrali-Americana.^ 



The following table is proposed for the species of the United States: 



Table of species of Pantomorus. 



I. Posterior tibiae with, at most, a double row of spines at tip. 



Subgenus Pantomorus Schonherr. 



1. Denticulation of anterior tibise fine; surface densely scaly tesselatus Say. 



2. Denticulation of anterior tibiae strong; surface not densely scaly. . .fulleri Horn. 



I I . Posterior tibiae with an oval scaly disk at tip Subgenus Phacepholis Horn. 



3. Anterior tibiae only denticulate. Funicular joints elongate, the second much 



longer than the first and considerably longer than the two following. 

 a^. Prothorax squarely truncate. 



6^ Denticulation of anterior tibiae fine; color of vestiture yellowish green. 



elegans Horn. 

 Ifi. Denticulation of anterior tibiee very strong; second funicular joint about 

 equal to the three following joints; vestiture brilliant bluish green. 



viridis Champion. 



a^. Prothorax obliquely truncate; denticulation of anterior tibiae moderately 



strong; vestiture brownish nebrashensis, new species. 



4. Anterior and median tibiae denticulate, the latter sometimes very minutely; 



prothorax obliquely truncate. 



1 Ann. New York Acad. Sci., vol. 4, 1888, p. 238. ^ Coleoptera, vol. 4, pt. 3, p. 232. 



