and Central American Malachiidae and Melyridae. 97 



the kind being known from that country. Moreover, we 

 now have three ($) examples of a Trichochrous from Aguas 

 Cahentes, Mexico, that must be referred to the same 

 species. It is chiefly recognisable by its shining black 

 body, thickly clothed with long, decumbent, shaggy palhd 

 hairs, intermixed with scattered erect black setae; the 

 wholly ferruginous, rather stout legs ; the closely, strongly 

 spinulose tibiae; and the broad, sharply serrate antennae. 

 The elytra are densely, moderately coarsely, the prothorax 

 finely and rather sparsely, punctate; the epistoma is 

 flattened. Three abraded examples ($) from Paso del 

 Norte, with shorter hairs and more finely punctured elytra, 

 may also belong here. The palHd hairs are very long in 

 the type. 



5. Trichochrous rnfipennis. 



Dasytes rufipennis, Lee, Proc. Acad. Phil. 1858, p. 71. 

 Pristoscelis rufipennis, Lee, op. cit. 1866, p. 356; Gorh., 



Biol. Centr.-Am., Coleopt. iii, 2, p. 327. 

 Trichochrous rufipennis, Casey, Ann. N. York Acad. Sci. 



viii, pp. 472, 516. 



Hah. North America, Gila, Arizona; Mexico, Puebla. 



The single female specimen from Puebla referred by 

 Gorham to this species agrees with Casey's brief description 

 of the abraded type, except that no mention is made of 

 the numerous intermixed erect dark setae on the prothorax 

 and elytra, these being conspicuous in the Mexican insect. 

 The latter has the elytra, tibiae, and tarsi ferruginous; 

 the tibiae closely and strongly spinulose externally; the 

 elytra broad, rather finely punctate, with the marginal 

 carina feebly developed and completely invisible from above ; 

 the antennal joints 5-10 strongly transverse, becoming 

 progressively wider outwards. Amongst the Mexican forms 

 it can only be compared with T. arcuaticollis, which has 

 a more rotundate prothorax, more coarsely punctate, 

 narrower elytra, etc. 



6. Trichochrous arcuaticollis, n. sp. 



(^. Elongate, subcylindrical, shining ; black, the elytra varjdng in 

 colour from violaceous with the apex rufescent to entirely ferrugin- 

 ous, the violaceous suffusion sometimes reduced to a common 

 triangular scutellar patch or to an anteriorly dilated sutural stripe, 

 the antennae in part or entirely, the apical one or two ventral seg- 



TRANS. ENT. SOC. LOND, 1914. — PART I. (JUNE) H 



