LieConlc] 



CRYPTORHYNCHINI. 247 



a,s the prothorax, nearly' smooth at tip, puuctured and feebly striate at base ; 

 head punctured. Prothorax wider tiian long, narrowed from the base for- 

 wards, sides nearly straight, convex; not densely punctured, with a median 

 stripe and a small spot each side, smooth. Elytra with stri* composed of 

 large, distant punctures, with an irregular basal fascia, and a large, com- 

 mon spot behind the middle white; the latter prolonged backwards along 

 the suture nearly to the tip. Beneath thinly clothed with yellowish scales; 

 ventral segments 2-4 nearly smooth; fifth Avith a few large punctures; 

 thighs obtusely toothed. Length 4.6 mm.; .18 inch. 



South Carolina and Georgia; Dr. Zimmermanu. I have adopted the spe- 

 cific name given by Dejean in his Catalogue. 



2. Ps. sedentarius (Say), Cure. 30 (^Gleogonus) ; ed. Lee. i, 298; Boh., 

 Sch. Cure, iv, 267. 



Florida; unknown to me. Difters from the preceding bj- the unarmed 

 thighs, and ditierently formed posterior elytral spot. 



TYLODERMA Say. (1831.) 

 Analcis Sch. (1837.) 



In this genus the beak is rather short and stout, and the mesosternum, 

 while very prominent, and forming a sharp edge which limits the pectoral 

 groove, is very feebly emarginate, resembling in this respect Acalles i^ecto- 

 ndis. From Acalles it differs evidently, besides manj^ other characters, by 

 the more elongate form ; the very distinct postocular lobes, the prothorax 

 prominent and rounded in front; the longer metasteruum, with distinct, 

 though narrow side pieces. From Cvyptorhynchus it is distinguished by the 

 form of body, the feebly emarginate mesosternum, and the 6-jointed funic- 

 ulus, as w^ell as by the stouter beak, with more suddenly declivous anten- 

 nal grooves. The first ventral suture is nearly obliterated. 



The species fall naturally into two divisions alreadj" indicated by Dr. 

 Horn, Proc. Am. Ent. Soc. 1873, 467; the first contains the type of Tylo- 

 derma, the second that of Analcis; I have, therefore, restored the former 

 name to the conjoined genus. 



Division I. 



In the first division the color is not metallic; the pubescence is in distinct 

 spots, and sometimes scaly; the abdomen is coarsely punctured, and the 

 punctures of the elytra are large. These species resemble in appearance 

 Mamactes, but differ very greatly in structural characters. 



I have nothing to add to the characters of the four species of this group, 

 as given b}^ Dr. Horn, but to say that T. foveolatum varies greatly in size, 

 some specimens being no larger than T. variegatum, from which it is at once 

 distinguished by the foveate rather than punctate prothorax. 



1. T. morbillosura. Anatcis morb. Lee. Pac. R. R. Expl. insects, p. 58; 

 Horn, Proc. Am. Phil. Soc. 1873, 467. 

 One specimen, San Francisco, California. 



