HARPALIN.E 241 



tibiae testaceous, blackish apically; tarsi piceous, the anterior paler 

 (cf ); head two-thirds as wide as the prothorax, very smooth, with 

 rather prominent though moderate eyes; antennae blackish, the 

 basal joint rufous; prothorax relatively rather small, two-fifth? 

 wider than long, widest near apical two-fifths, the sides rather 

 strongly rounded, converging and straighter basally, the basal angles 

 but little more than right, sharply defined and minutely prominent; 

 base transverse, just visibly arcuate and sometimes faintly beaded 

 near the sides, slightly wider than the rather feebly sinuate apex; 

 surface smooth, with a fine distinct subentire median stria, very 

 finely and evenly reflexed at the sides; foveae short, linear, moderately 

 impressed and with some extremely fine inconspicuous punctures 

 which do not extend at all along the sides; elytra relatively large and 

 posteriorly subinflated, obtusely ogival at apex and without sinus, 

 fully one-half longer than wide and two-thirds wider than the pro- 

 thorax, the stria? very fine, feeble, much finer than in any other 

 species of the genus, the scutellar very short and feeble; intervals 

 perfectly flat throughout to the suture and apices, the discal punc- 

 ture fine, very feeble, at three-fifths; hind tarsi long and slender. 

 Length (cf 9) 5-7-5-8 mm.; width 2.0-2.2 mm. Washington State 

 and California (northern). [Tachycellus conformis Fall]. 



conformis Fall 



Form rather narrower but otherwise nearly similar, smaller in size, convex, 

 very shining, deep black, the fine thoracic bead very indistinctly 

 rufous; under surface, legs and antennae somewhat as in conformis; 

 head nearly similar, constricted at base, with moderate prominent 

 eyes; prothorax relatively larger, two-fifths wider than long, widest 

 and with strongly rounded sides at apical third, the sides thence 

 converging, becoming gradually straight to the basal angles, which 

 are very evidently more than right, very sharply defined though only 

 very minutely and feebly prominent; base, apex and surface nearly 

 similar, except that the foveae are larger, deeper, more broadly 

 impressed and with numerous rather coarse and very distinct 

 punctures; elytra nearly similar in form but not so broad and barely 

 one-half wider than the prothorax, the sinus obsolete; striae rather 

 fine but stronger than in conformis and evidently impressed, rather 

 strongly so and with distinctly convex intervals suturally; scutellar 

 stria very short; discal puncture strong, at about three-fifths; hind 

 tarsi long and slender; male more distinctly larger and heavier than 

 the female than in conformis, though this relation is also evident 

 there. Length (cf 9 ) 4.75.7 mm.; width 1.7-2.1 mm. California 

 (Hoopa Valley, Humboldt Co.). Three examples. . .tetricus n. sp. 



The following species is somewhat doubtfully attached to the 

 present genus: 



T. suturalis Lee. (Acupalpus] Name subsequently changed to nebu- 

 losus by LeConte, because of preoccupation. Rufo-piceous, shining; head 

 smooth, the frontal impressions oblique, deep; frontal suture deeply 

 impressed, also with a puncture on the vertex; palpi testaceous; antennae 



T. L. Casey, Mem. Col. V, Oct. 1914. 



