LeConte.] TOMICINI. :>(>9 



tinctly punctured, with numerous rows of short pule bri~ terior 



declivity convex, sutural point small, less prominent than in the otUer 

 species. Length 1.7 mm.; .07 inch. 



Haulover, Florida ; February, Messrs. Hubbard and Sehwar/.. One 

 specimen. The eyes are more coarsely granulated than in the other <j.- 

 and there is no gular space between them. 



4. M. rudis, n. sp. 



Cylindrical, proportioned like M. suturalis, nearly black, rather shining 

 antcnmu reddish-brown, sutures of the club forming broad curves; fust 

 joint with a tuft of hairs near the tip. Head very deeply excavated (almost 

 as in Xyloterustf); eyes widely distant below. Prothorax somewhat longer 

 than wide, broadly rounded in front, sides parallel behind; surface sparsely 

 granulate behind, rough with numerous tubercles in front. Elytra scarcely 

 pubescent, rugosely punctured; punctures large, arranged in approximate 

 rows; interspaces rough with small acute tubercles on the declivity which 

 is convex, except near the tip, which is concave; sutural point well de- 

 veloped. Length 2.5 mm. ; .10 inch. 



Detroit, Michigan; Messrs. Hubbard and Schwarz; one specimen. The 

 tibiae are feebly toothed on the outer edge. 



5. M. hirtellus. n. sp. 



Cylindrical, of the same form as N. suturalis, dark brown, thinly pubes- 

 cent with fine yellowish sub- erect hair. Head flat, with a frontal tuft of hair; 

 eyes widely separated beneath. Antennae with the scape more densely 

 fringed than usual; club small, rounded; sutures nearly straight. Pro- 

 thorax longer than wide, nearly semicircular in front, densely but finely 

 granulate behind; asperate with numerous sharp tubercles in front, disc 

 feebly impressed, and more hairy each side of the median line behind the 

 middle. Elytra rugosely punctured; .punctures arranged in rows; de- 

 clivity rough with small tubercles; convex, sutural point prominent. 

 Length 2.1 mm. ; .11 inch. 



One specimen from Southern California, collected by Mr. Hardy and 

 kindly given me by Dr. David Sharp. The tarsi are longer and more 

 slender than in the other species. 



THYSANOBS n. g. 



This genus is allied to Micracis; the front tibia3 are of the same parallel 

 form, as wide at base as at tip, and not serrate on the outer edge; the an- 

 tennae are, however, quite different; the scape is fringed as in Micracts; 

 the first joint of the funicle is longer than wide; thicker at the extremity; 

 the remaining five joints are very distinctly separated, and become rapidly 

 wider and transverse, by being prolonged at the upper side; they are also 

 fringed with very longhair; the club is elliptical, compressed, rathershininir, 

 sparsely hairy, without distinct sensitive surface; without sutures on the 

 inner face, with two indistinct sutures on the outer face, of which the lower 

 one seems straight, and the distal one curved. The eyes are large, trans- 

 verse, coarsely granulated, and not emarginate; they are separat- d beneath 



PROC. AMER. PHILO8. 8OC. XV. 96. 2U 



