i8 MEMOIRS ON THE COLEOPTERA. 



orbicular, the eyes convex and at about half their length from the base; 

 antennae moderate in length, stout, gradually moderately incrassate, 

 the first three joints subequal in length, the fourth about as long as wide, 

 the outer joints fully one-half wider than long, the last elongate-oval 

 and longer than the two preceding, simple; prothorax nearly as in ab- 

 scissa though shorter, still more greatly exceeding the head in width and 

 less greatly though very evidently wider than any part of the elytra, 

 the latter narrower and less transverse, parallel, the suture fully a fourth 

 longer than the prothorax; abdomen long and very slender, much nar- 

 rower than the elytra, parallel, with thick margins, feebly narrowed 

 apically, the sexual characters nearly as in the two preceding. Length 

 2.0 mm.; width 0.4 mm. Iowa (Iowa City), Wickham. 



This species may easily be distinguished from abscissa by its 

 narrower form and more slender abdomen, smaller head and longer 

 and less incrassate antennae, with more elongate fourth joint; 

 from tenuicauda it may be known by its narrower form and smaller 

 and relatively more elongate elytra, and from angustiventris by 

 its very much shorter vestiture and narrower elytra and abdomen, 

 among other features. 



Ischnoglossa alticola n. sp. Moderately stout and convex, rather 

 dull, the abdomen alutaceous, red-brown, the head and third and fourth 

 tergites shaded slightly darker, the legs pale; punctures dense and as- 

 perate, very fine on the abdomen; vestiture pale, only moderately short 

 and not very fine, abundant; head much wider than long, three-fifths 

 as wide as the prothorax, convex, the eyes feebly prominent and at less 

 than their own length from the base; antennae moderately long, pale, 

 the first three joints subequal in length, the fourth fully as long as wide, 

 fifth and following abruptly much wider and more densely pubescent 

 as usual, the tenth more than one-half wider than long, the last as long 

 as the two preceding; prothorax only about three-fifths wider than long, 

 the truncate apex not very much narrower than the rounded base, the 

 sides subparallel and subevenly, rather strongly arcuate, the basal angles 

 obtuse though distinct, the surface wholly unmodified; elytra fully 

 as wide as the prothorax, parallel, with feebly arcuate sides, moderately 

 transverse, the suture but slightly longer than the pronotum; abdomen 

 evidently narrower than the elytra, parallel, narrowing slightly apically, 

 the fifth tergite but little longer than the fourth, the three basal impres- 

 sions rather deep and fine. Length 1.9 mm. ; width 0.43 mm. California 

 (Truckee). 



The single female type was erroneously considered with the Lake 

 Tahoe asperata under the original description of the latter species; 

 it is stouter than asperata, with a relatively wider abdomen, less 

 abbreviated prothorax, relatively shorter elytra and larger and more 

 transverse head; the last antennal joint is shorter, this being 



