— 197— 



l,t;c. J. A. P. ser. 2, II, 1850, p. 17; hrevipennis I^c. S. M. C. 1873, XI, p. 197; In- 

 tasus Lee. Proc. Ac. Phil. 1861, p. 356. 



Length 12-20 inm.=48-8o ins. Hab. Southern States to Kansas and Coloradu 

 Mont. 111. Ind. Iowa Mo. 



Dr. Horn says in reference to this "'An extremely variable species 

 which, with the mass of material before me, is not capable of division." 



Of the synonyms named above (5rCT'//>g««i> was applied to a verv 

 fresh specimen with soft abdomen, lutosus to one with elytra entirely yel- 

 low and the others to the different forms which commonly occur and wo 

 ligure the arrangement of bands in each. 

 The colors are yellow and black. 



TRICHOXYS CVieu. 

 T. Hartwegi White. Longic. VII, 2, p. 252, t. 6, f. 8; Luc. Ann. Fr. 1857. 

 Bull. p. 48, 9 . 



Length 22 mm. =.88 ins. Ilah. Arizona. 



Color black, elytra with reddish gray and while bands; easily known 

 by the peculiar arrangement of elytral bands. 



PLAGIONOTUS MaU. 

 P. speciosus Say. Am. Ent. Ill, 1828, t. 53; Lap and Gory Mon. p. 39, t. 8. 



1. 48; Lee. J. A. P. ser. 2, II, p. 17; Harris. Ins. of Mass. p. 84. 



Length 23 mm. =.92 ins. Hab. Can. Vt. Mass. N. H. Pa. L. Sup. Me. 

 Black with yellow bands. 



CaLLOIDES Lee. 

 Contains two species very closely allied. 



Elytra with a vague depressed transverse band, Lorquinii. 



Elytra without band, nobilis. 



C. nobilis Say. Harris Hartf. Trans. 1836, p. 84, t. i, f. 7; Lee J. A. P. ser. 



2, II. 1850 p. 18; Lacord. Gen. Col. IX. 1869, p. 64 not 3. 



Length 20-23 mm.=.8o-.92 ins. Hab. U. S. Brown or black, elytra gener- 

 .illy marked yellow as in figure but sometimes immaculate. 



C. Lorquinii Buq. Ann. Fr. 1859, p. 629. 

 Length 22 mm. =88 ins. Hab. California. 



Black without markings. It scarcely differs from the preceding ex- 

 cept in the elytral depressed band. There is a difference in thoracic 

 sculpture, difficult and misleading to describe. 

 ARHOPALUS 5610. 

 A. fulminans Fabr. Syst. Ent. p. 192; Lap and Gory, Mon. p. 35, t. 8, f. 44. 

 Length i2-i8 mm. =48-72 ms. Hab. U. S. 

 Black with while pubescence. 



CLYTUS Laich. 

 This genus as here restricted contains only those .species without 

 either narrow episterna, frontal carina or thoracic rugae. I have inclu- 

 ded planifrons because that species presents none of the characters used 



