650 Goleopterological Notices, VII. 



extending much bevoud the labrum. Prothorax generally cam- 

 panulate, with everted basal angles, always distinctly narrower 

 than the elytra. Anterior and intermediate coxas very large and 

 greatly exposed, approximate, the anterior cavities large, conflu- 

 ent and very broadly open behind ; posterior coxa contiguous, 

 extending to the sides of the body. Metasternum large, the epi- 

 sterna broad, becoming narrower behind. Abdomen composed of 

 five free segments, the fifth emarginate at tip in both sexes, more 

 narrowly in the female ; sutures straight. Legs long and very 

 slender; tibial spurs well developed, simple; tarsi slender, 

 cylindrical, the penultimate joint immodified. 



The characters of the family as given b}^ LeConte and Horn 

 (Class. Col. IS". A., 2ed., p. 405), are unaccountablj^ erroneous and 

 misleading, it being stated, for example, that the eyes are small, 

 the frontal suture not distinct, the prothorax at base as wide as 

 the elytra, that the side-pieces of the metasternum are narrow, 

 and, finally, that the abdomen is composed of six free ventral seg- 

 ments, with the sixth short and deeplj^ emarginate in the male. 



The family should follow the Cistelidse in our lists, and is out 

 of place in its present position near the (Edemeridse. The species 

 inhabiting the United States are at least five in number, and may 

 be readily differentiated as follows : — 



Prothorax larger and more campaniilate, fully as long as the head or longer 

 and much broader at base, the everted basal angles more developed ; an- 

 tennae shorter, the last three joints slightly dilated in the female, the 

 ninth and tenth not notably elongate ; neck feebly but abruptly con- 

 stricted. 

 Antennae short, not as long as the head and prothorax, the three outer joints 

 distinctly wider, the eighth distinctly shorter and much narrower than the 



ninth lepturides Newm. 



Antennae longer than the head and prothorax, the eighth joint at least as 

 long as the ninth and generally longer. 

 Eyes separated by nearly their own width ; body generally uniformly tes- 

 taceous throughout, the antenuae with the three basal joints pale, the 

 remainder blackish, becoming gradually paler at tip ; eighth joint fully 



as long as the ninth teiiuicorne Lee. 



Eyes separated by 3^ to ^ of their own width, as viewed vertically ; body 

 variable in color. 

 Front between the antennae broad, as wide as the neck or wider. 



versicolor n. sp. 

 Front narrower than the neck ; elytra more rapidly and obliquely nar- 

 rowed from the base and more acutely rounded at tip. 



ornatum n. sp. 



