284 MEMOIRS ON THE COLEOPTERA 



Ostomodes Reitter, under the name Grynocharis expansa, from a 

 specimen taken on Mt. San Jacinto in southern California, giving, 

 at the same time, the differences between it and pallidus Mots. 

 (pilosulus Cr.). Mr. Reitter in characterizing the genus Ostomodes 

 describes two apparently new species, dohrni and lagrioides, from 

 California, which, however, are now considered synonyms of 

 pallidus. The following is another hitherto undescribed species: 



Ostomodes angustus n. sp. Narrow, parallel, rather convex, pale 

 fulvous in color throughout the body and legs, except that all the sterna 

 are deep black, the head blackish and the median parts of the pronotum 

 indefinitely fusculate; pale pubescence rather fine, short, decumbent and 

 very sparse throughout, without intermingled erect setae on the elytra; 

 head but little more than half as wide as the prothorax, the labrum, 

 mandibles and antennae abruptly pale, the first joint of the club narrower 

 than the second; prothorax short, nearly twice as wide as long, the sides 

 parallel and very feebly crenulate, the surface strongly and rather closely 

 punctate, deplanate at the sides; elytra nearly twice as long as wide, very 

 slightly wider than the prothorax, obtusely parabolic in about apical 

 third, the surface even and with very coarse deep punctures, separated 

 by about their own diameters; legs rather short and slender, the hind 

 tarsi slender and longer than the tibiae. Length 4.5 mm.; width 1.6 mm. 

 Idaho (Coeur d'Alene). 



Differs from pallidus Mots., in its narrow parallel form, more 

 quadrate prothorax, smaller head, narrower first joint of the an- 

 tennal club, absence of the erect setae and much finer sparser 

 pubescence of the elytra, the punctures of which are relatively 

 even coarser, smaller tarsal claws and many other characters. 



The species noted in our lists as Grynocharis oregonensis Cr., is 

 unknown to me and has never been described, the only reference in 

 the Leveille catalogue being to the Crotch check-list, where it 

 appears as a simple catalogue name. It seems, moreover, to be 

 a true Grynocharis, represented otherwise in this country only by 

 quadrilineata Mels. 



While dealing with this part of the Ostomidae, the following may 

 as well be described : 



Ostoma nigrina n. sp. Form oblong-oval, rather elongate, moderately 

 convex, shining, black in color, the broad concave sides, and the under 

 surface, piceo-rufous, the legs and tarsi black; head flat above, coarsely, 

 very densely punctate, the eyes only moderately convex and minutely 

 faceted; antennae about as long as the sides of the prothorax, the latter 

 three times as wide as the median length, throughout nearly as in fer- 

 ruginea, except that the sides converge more obliquely from the rounded 



