132 MEMOIRS ON THE COLEOPTERA 



phl(Bus fraudator (Biol. Cent.-Amer., Vol. II, Pt. i, p. 539; PI. 

 XVII, fig. 10) evidently constitutes at least a subgenus different 

 from Silvanophlosus, for which I would suggest the name Phlce- 

 ipsius (n. subgen.). It differs not only in its different facies, owing 

 to the broader suboval outline, but in the gradually incrassate an- 

 tennae distally. 



Cryptolestes Gangl. 



In this genus, as represented by ferrugineus Steph., the tarsi are 

 nearly as in the preceding, but the anterior coxal cavities are even 

 more broadly and completely inclosed by the sterna, there being 

 merely a fine suture between each side piece and the median lobe ; 

 the coxae are very small. This character, in conjunction with the 

 narrow parallel form of the body and absence of epistomal suture, 

 shows that Cryptolestes is not a subgenus of Lcemophlceus but a 

 very distinct and well characterized genus, which however, as now 

 constituted, is composite, the very slender forms, with short silvanoid 

 antennae in both sexes, being separated below under the name 

 Leptophlceus. In Cryptolestes the male antennae are filiform, or with 

 very feeble enlargement of the last three joints. The American 

 species in my collection are ferrugineus Steph., rotundicollis, trun- 

 catus, quadratics, extricatus, pubescens and denticornis Csy., and 

 puberulus and punctatus Lee. The European pusillus Schon., does 

 not occur here, so far as known to me, and the species so identified 

 in my former work is puberulus Lee., the name of which must there- 

 fore be restored; this species occurs from southern California to 

 southwestern Utah. Although undemonstrable at present, I also 

 have strong doubts concerning the occurrence of the European 

 alternans Er., in this country and believe some allied native species 

 has been mistaken for it. Of truncatus Csy., I now have a good 

 series of ten examples from Keokuk, Iowa; it is larger and more 

 elongate thanfermgineus, and the male has very much smaller eyes; 

 in the latter species the female is more elongate than the male, 

 with the head fully as large and sometimes larger; I have specimens 

 from southern California, Iowa and Natick, Massachusetts, that 

 resemble completely the European examples sent me by Grouvelle; 

 they are all females. Rottmdicollis, also represented only by the 

 female, is narrower and has shorter antennae; extricatus has a rela- 



