156 MEMOIRS ON THE COLEOPTERA 



next two joints combined and very much broader, almost as in 

 Stenomorphus, though not nude beneath as in that genus; the 

 middle tarsi are nearly like the anterior but less dilated throughout. 

 The large basal joint of the anterior is broadly and feebly concave 

 beneath and uniformly and densely clothed with very short slender 

 squamae; on the second joint these become longer and less dense, 

 though similarly confused in arrangement, and on the third they 

 become still longer, finer and criniform, sparse and with their apices 

 apparently sensitive. The middle tarsi have the basal joint large 

 but much less dilated than that of the anterior and more strongly 

 squamose beneath, the squamae more biseriately arranged, some- 

 what as in the male, though much less evidently so on joints two 

 to four. It will be noted that these characters are most exceptional. 

 The two species known within our faunal limits may be described 

 as follows: 



Form elongate, polished, convex, deep black above, without trace of 

 metallic lustre, piceo-rufous beneath, the legs, antennae, labrum 

 and oral organs pale testaceous; head nearly three-fourths as wide as 

 the prothorax, with rather large and prominent eyes, the antennae 

 slender, filiform and extending far behind the thoracic base; labrum 

 barely at all sinuate medially, with broadly rounded angles; frontal 

 impressions small, deep and punctiform, nearly as in Discoderus; 

 prothorax but very slightly wider than long, the apex and base 

 subequal, truncate, the sides rounded, a little more converging 

 basally, the angles very obtuse but not or scarcely rounded; base 

 finely margined; side margins very finely reflexed; surface smooth 

 and polished, more feebly declivous but scarcely explanate and with 

 numerous coarsish punctures latero-basally, the foveae shallow; 

 median stria very fine, the transverse impressions shallow and very 

 vague; elytra three-fifths longer than wide, fully a third wider than 

 the prothorax and about three times as long, parallel, obtusely 

 rounded at tip, the apices narrowly oblique though barely visibly 

 sinuate; striae rather fine but deeply and broadly impressed, the 

 scutellar wholly wanting, the fovea however large and distinct, the 

 striae shallower and sometimes feebly punctulate laterally; intervals 

 convex, especially suturad; setigerous punctures of striae 2-5-7 

 obvious; lateral line of foveae broadly interrupted; legs rather short 

 and slender; basal joint of the hind tarsi much longer than the next 

 two as in Discoderus. Length (c? 9 ) 6.0-7.0 mm.; width 2.2-2.5 

 mm. Rhode Island, New Jersey, Staten Island and Catskill Mts. 

 [G. americanus Dej.; Harpalus hylacis Say] hylacis Say 



Form narrower than in the preceding, black, shining; head, antennae and 

 palpi similar, the legs rufous; prothorax not shorter than wide, 

 truncate at apex and base, the sides rounded, the hind angles slightly 

 explanate, obtuse, somewhat rounded; surface convex, the transverse 



