AMERICAN COLEOPTERA. 263 



arcuate, surface finely striate, striae with indistinct distant punctures. Body 

 beneath punctured, ventral segments more densely and finely. Length .10 

 inch ; 2.5 mm. 



The first ventral segment has a fine coxal line which does not 

 attain the posterior margin. 



Occurs in California and Nevada, under bark. 



H. riifipes Lee, New Species, 1863, p. 65. — Piceous, subdepressed, antennae 

 and legs rufous. Head coarsely punctured at the sides, at middle nearly 

 smooth. Thorax as wide as long, sides feebly arcuate and gradually narrowed 

 to base, anterior angles not prominent, hind angles rounded, margin obsoletely 

 crenulate, disc coarsely punctured and with a broad median smooth space. 

 Elytra slightly wider than the thorax, surface striate, striae with moderately 

 deep and rather closely placed punctures. Body beneath sparsely punctured. 

 Abdomen moderately densely punctured, the first segment more coarsely but 

 more sparsely. Length .12 inch; 3 mm. 



As in the preceding there is a distinct but fine and short coxal line. 



Occurs in Missouri, Georgia, Louisiana. 



H. capito Fairm., (Rhizoph.), Rev. Zool. 1850, p. 54. — This insect resembles 

 abbreviatus in coloration but has the elytra as distinctly sculptured as in rujipes. 

 The thorax is very slightly longer than wide, anterior angles not prominent, 

 sides feebly crenulate, disc depressed, with coarse punctures arranged irregu- 

 larly in rows. Length .10 inch ; 2.5 mm. 

 Occurs at Honolulu, Sandwich Islands. 



EUROPS Woll. 



Head slightly prolonged behind the eyes, then suddenly constricted. 

 Antennae ten-jointed, last two joints suddenly larger and of equal 

 width. Front not dilated before the eyes. Intei-coxal process narrow, 

 triangular and subacute. Elytra with strias of punctures. 



This genus corresponds with Nbmophloeus Lee, (Proc. Acad. 1878, 

 p. 328). It agrees with Phijconomus in the structure of the antennae 

 but difi"ers in all the other characters above mentioned. 



Two species only are known in our fauna, one from each side of the 

 continent, two others have been made known by Wollaston. For con- 

 venience of comparison a description of the latter is added. 



Thorax as wide as long, a rather deep crescentic subbasal impression. First 

 ventral with distinct coxal lines pallipennis Lee. 



Thorax a little longer than wide, a vague longitudinal impression. First 

 ventral without coxal lines impressicollis Woll. 



Thorax one-half longer than wide, no discal impressions. First ventral with- 

 out coxal lines longicollis n. sp. 



E. impressicoUis Woll., has been introduced in the above table as a 



point of comparison, the other species by the same author is unknown 



to me in nature. 



