and Central American MalacJdidae and Melyridae. 29 



margin of the joint, 3-10 gradually tapering outwards, 3-9 sharply 

 triangular. 



Hab. Southern United States, Utah and Arizona; 

 Mexico, Northern Sonora (Morrison), Monterey in Nuevo 

 Leon (Hoge). 



Two males from Monterey and a female from Sonora 

 belong to this species, the types of which have been kindly 

 communicated by Mr. Fall. They are closely related to 

 C. limbellus, G. & H. ( = limbatus, Lee), differing from 

 that insect in having the elytra distinctly tuberculate 

 and with the broad blue vittae extending to the tip, and 

 the antennal joints 3-10 much stouter in the male. This 

 last-mentioned character brings C. granellus near C. vittatus, 

 which has less strongly serrate antennae in that sex. 



14. Collops vittatus. 



Malachius vittatus, Say, Journ. Acad. Phil, iii, p. 184; 



Amer. Ent. iii, and Complete Writings, i, p. 108, 



t. 48, fig. 1 (^). 

 Collops vittatus, Er., Entomographien, p. 60 (c^$); Lee, 



Proc. Acad. Phil, vi, p. 164; Horn, Trans. Am. Ent. 



Soc. iii, pp. 81, 83, and Proc. Cahf. Acad. Sci. (2) iv. 



p. 329; Gorh., Biol. Centr.-Am., Coleopt. iii, 2, p. 316 



(nee p. 114) ; Fall, Journ. N. York Ent. Soc. xx, pp. 254, 



266. 

 Megadeuterus haworthi, Westw., Trans. Ent. Soc. Lond. ii, 



p. 98, t. 10, figs. 9, 9a-e (cJ). 



(J. Antennae with joint 1 and the upper side of 2 testaceous, 

 for the rest black, in some examples wholly testaceous, 1 much 

 widened outwards, flattened above and convex beneath, 2 abruptly 

 excised beyond the middle externally (appearing broadly bilobed), 

 the appendage extremely slender and received beneath the reflexed 

 inner margin of the joint, 3-10 moderately widened, serrate, 3-8 

 transverse, subequal. 



$. Antennae with joint 1 and the outer edges of 2-6 testaceous, 

 for the rest inf uscate or black. 



Hab. Canada; United States; Lower California; 

 Northern Mexico, Sonora (Morrison), Durango city, and 

 Villa Lerdo (Hoge), Coahuila {Dr. Palmer). 



A very variable insect, ranging from Canada to Northern 

 Mexico. Examples from Coahuila and Sonora with the 

 antennae and the anterior portion of the head testaceous 



