118 Jo'-■R^'AL Xew York Entomological Society. [Voi. xix. 



over the entire surface : elytral intervals, especially at basal half with 

 confused punctuation; color uniformly black Iiistrina Lee. 



Head and prothorax with uniform punctuation 2 



2. Prosternum almost smooth, near apical margin a row of very coarse and 

 deeply impressed punctures : intervals with a single row of punctures ; 

 color red, elytra black nigripennis Lee. 



Prosternum eciually punctate over the entire surface : elytral intervals at 

 basal half with confused punctuation ; color black or piceous. elytra with 

 large, red basal space fasciata Sharp. 



Rhizopagus robustus, new species. 



DilTers from scalptitratiis in slightly longer and broader thorax with sides 

 scarcely narrowed towards base, longer third antenna! joint and the more 

 deeply impressed elytral stria-. Length 4 mm. 



Kentucky. 



I have also a specimen of tliis species taken years ago on Long 

 Island, X. Y. 



Family Dkyopid.e. 



I have followed recent Etiropean catalogues and publications in 

 using Dryops for the species formerly known as Parnus, Hclichus 

 for what we have called Dryops and Hchnis for Eliiiis. 



In part 17 of the " Coleopterorum Catalogus " Zaitzev has placed 

 our North American species of Hhiiis in the two genera Hchnis and 

 Linuihts. As far as I know our species they do not tit in any of the 

 Euroi)ean genera proposed at the expense of Eluiis. Ehiiis glabcr 

 Horn is very close to Hctcrcliiiis obscitnis Sharp from (juatemala 

 and has to be placed with latlnsculiis and iiitidiihis in the genus 

 Hctcrclniis, and Elmis iiursfits Horn, judging from the description, 

 seems to belong in the genus Elsiaiius Sharp. For the rest of our 

 species, if we follow the luiropean custom, three new genera at least 

 have to be erected and perhaps more. 

 Phanocerus clavicovnis Sharp, Biol. Cent. Am. Col.. \ol. I. pt. 2, p. 129. 



Specimens collected at Devil's River, Texas, by F. C. Pratt are in 

 the collection of the United States X^ational Museum which agree 

 with the description of this species. 



The genus is a member of the tribe Potamo])hilini (Larini Lee.) 

 and is readily distinguished 1)y its short antenn;e with the last six 

 joints forming a compact oval club. 



Among the material kindly sent me by Messrs. Schwarz and 



