LeConU-.] 



CKYPTOK 1 1 V N ( 1 1 1 M . 247 



as the protliorax, nearly smooth at tip, punctured and feebly striate at (MB6; 

 head punctured. Protliorax wider than 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;e composed of 

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

 mon spot behind the middle white; the latter prolonged backwards al>n_ 

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

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

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



South Carolina and Georgia; Dr. Zimmermann. I have adopted the >\>c 

 cific name given by Dejean in his Catalogue. 



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

 Sch. Cure, iv, 267. 



Florida; unknown to me. Differs from the preceding by the unarmed 

 thighs, and differently formed posterior elytra! spot. 



TYLODERMA Say. (1831.) 

 Analds Sch. (1837. ) 



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

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

 groove, is very feebly emarginate, resembling in this respect Acalles pecto- 

 rulix. From Acalles it differs evidently, besides many other characters, by 

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

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

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

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

 ulus, as well 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 already indicated by Dr. 

 Horn, Proc. Am. ffii=fc.''Soc. 1873, 467; the first contains the type of Tyl<>- 

 deniia, the second that of Analci*; 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 

 Mmmctes, but differ very greatly in structural characters. 



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

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

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

 distinguished by the foveate rather than punctate protliorax. 



1. T. jmorbiUosouxi. Analci* morb. Lee. Pac. R. R. Expl. insects, \ 

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

 One specimen, San Francisco, California. 



