116 GEO. H. HORN, M. D. 



is a very irregular fracture. That this piece could hardly be even an 

 aborted mandible seems evident, from the fact; that it is a little less in 

 size than the first or basal joint of the maxillary palpus. 



The other parts of the body as described seem to need no further 

 comment. Details are given on Plate V. 



MOXCEDUS* n. g. (Lathridiidse). 

 I have established this genus on a very small species having the 

 following remarkable characters : 



Antennas ten-jointed, joints 1 — 2 thick, third a little larger than the following 

 4 — 9, which are rounded but little longer than wide, tenth as long as the eighth 

 and ninth, oval, obtuse, above one-half longer than wide. Eyes convex, promi- 

 nent. Front coxaa not prominent, separated by the narrow presternum, cavities 

 closed behind. Legs rather short, tibiae without distinct spurs; tarsi three-jointed, 

 the first joint large, dilated, fla-t and spongy beneath, oval, not emarginate ; second 

 joint small arising from the upper surface of the first joint, about one-third from 

 the distal end ; third joint long, with rather large claws feebly toothed near the 

 base. Upper surface very coarsely sculptured, elytra with rows of large fovse and 

 with the interstaees subeostate, alternately more elevated as in certain Micro- 

 rhopalce. Under surface nearly smooth. 



]>I. £U 1 1 sit us Lee. n. sp. — Fulvous, antennse black. Head flat, broadly im- 

 pressed, opaque, alutaceous or finely punctulate. Prothorax quadrate, a little 

 longer than wide, not wider than the head with the eyes, sides nearly straight, 

 tip and base feebly rounded, the latter margined, angles, both front and hind, 

 acute, slightly "prominent; disc very coarsely punctured, with four shallow im- 

 pressions; there is a slight vestige of a smooth elevated dorsal line behind the 

 middle. Scutel visible, black. Elytra more than one-half wider than the pro- 

 thorax, truncate at base, with rectangular humeri, rounded behind and covering 

 completely the dorsal segments; sides parallel, strongly margined; disc moder- 

 ately convex with nine rows of large cribrate punctures; these rows are somewhat 

 confused by pairs, with the interspaces elevated and subeostate; they are marked 

 with black spots as follows: one at four-fifths the length on the first and second 

 row of punctures, and another very near the tip; two on the third and fourth 

 row, the anterior one elongate, about the middle, the posterior one between the 

 two spots of the inner rows; two elongate spots on the fifth and sixth rows, one 

 before, the other behind the middle: and finally some elongate clouds on the 

 seventh and eighth rows behind the middle. Length 2 mm. (Tl. IV, fig. 10). 



One specimen, Cedar Keys, Florida; Mr. H. G. Hubbard. This odd 

 form seems to lead to the Monotomidae, but differs by many characters. 



DASYCERUS Brongn. 

 This genus heretofore represented only in Europe by three species 

 has been lately discovered within our fauna, two species having been 

 almost simultaneously discovered on both sides of our continent. They 

 are as follows : 



* Through the kindness of Dr. LeConte I have been permitted to publish the 

 description to accompany the figure I have drawn on PL IV. 



