H. ('. FALL. 1 11 



Lathridiini. Add to this the capillary antennse, tlie club consisting 

 of nodifonn enlargements of the intermediate portions of the outer 

 joints (except the terminal joint), the very long aciculate terminal 

 joint of the maxillary palpus, the abdomen composed of six segments 

 in both sexes, with the basal segment scarcely longer than the second, 

 all of which characters are foreign to the remaining genera of the 

 tribe, and the setting apart of Dasycerus as a distinct tribe would 

 appear to be justified. There are several other characters possessed 

 by Dasycerus, which, if of themselves of minor importance, are yet 

 in the aggregate quite significant. The mentum, which everywhere 

 else is more or less strongly transverse and deeply sculptured, is here 

 fully as long as broad, its surface polished and impunctate. The 

 tibiae instead of widening gradually to the apex, as in all other 

 genera, are widest at or near the middle, whence they are narrowed 

 toward the apex. The form of the prothorax, the membranous and 

 ciliate elytral margin, and finally the sculpture and vestiture of the 

 entire upper surface are all peculiar to the genus in question. Our 

 two species, one from each side of the continent, are quite closely 

 related ; they may be readily separated by the following short 

 descriptions. 



D. carolinensis Horn. — Brown; head triangular, base truncate with 

 rounded angles, tempora about as long as the eyes; the latter globose, very 

 prominent, but a little concealed from above by the elevated side margins of the 

 front. Prothorax transversely hexagonal, side margins membranaceo-explanate, 

 disk transversely impressed behind the middle, longitudinally costiform each 

 side the median line, both before and behind the transverse impression. Elytra 

 broadly oblong-ovate, humeri rather narrowly rounded ; each elytra with three 

 sharply defined entire costa, their summits with a close set series of stout scale- 

 like elevations, each of which bears a recurved bristle; intercostal intervals bi- 

 seriately punctate, those between the first and second, and second and third 

 costse with an irregular intermediate line of more distant punctures. Meso- 

 sternum with a median longitudinal raised line or carina, which extends through- 

 out its length and between the middle coxa;, which are narrowly separated. (PI. 

 Ill, figs. 5 and 5a). Length 1.75 mm. 



Hab. — North Carolina, Morgantown (Morrison), Retreat and 

 Round Knob (Hubbard and Schwarz). 



The head and prothorax are apparently granulate, the granules 

 forming the pedicels for the yellowish hairs of the surface. The 

 margin of the elytra in all specimens seen is without membranous 

 border, and is similar in structure to the discal cost;e. In two 

 females each sutural costa bears near the apex an acute process 



TRANS. AM. ENT. SOC. XXVI. NOVEMBER, 1S99. 



