ROLAND HAYWARD. 217 



Very distinct from any species known to me. In facies it some- 

 what recalls a minute Trechus. The subulate palpi seem here to 

 attain their greatest development, the last joint of the maxillary 

 being almost obsolete, and that of the labial very small. 



Described from a single male from the Verde River, Arizona, 

 collected by the late Dr. H. G. Griffith, for which I am indebted to 

 the kindness of Mr. Chas. Liebeck. 



25. T. rufotecitaceus n. sp.— Form elongate, depressed. Color pale rufo- 

 testaceous. Head as wide as the thorax at apex : frontal grooves short, deep, ex- 

 tending posteriorly scarcely to the middle of the eye; eyes moderately large, 

 slightly flattened ; antennas less than one-half the length of the body, testaceous, 

 the outer joints darker, the second longer than the third, joints 3-10 sub-equal, 

 the eleventh longer and acute at tip ; palpi testaceous. Prothorax very slightly 

 narrower at hase than apex, subquadrate, about one-half wider than long; apex 

 truncate; transverse impressions distinct, the anterior strongly arcuate and dis- 

 tant from the apex, the posterior distinctly angulate at middle: median line dis- 

 tinct, extending between the transverse impressions; basal impressions small, 

 distinct; base truncate, very slightly obliquely so each side; sides with the mar- 

 gin narrowly retlexed, arcuate in front, sinuate behind ; hind angles rectangular, 

 not carinate. Elytra oblong-ovate, about one-half wider than the thorax, with 

 four dorsal striae, the two inner deeper; stria? finely punctate, the outer ones ab- 

 breviated behind ; marginal stria with the apical portion distinct, the basal obso- 

 lete and represented by the usual two marginal setigerous punctures; first dor- 

 sal puncture about one-third from base, the second about one-fourth from apex. 

 Body beneath rufous or rufotestaeeous. Legs testaceous. Length . 06-. 07 inch ; 

 1.5-1.75 mm. 



A very distinct little species. It resembles Icevus in having the 

 second joint of the antennae longer than the third, but is easily 

 recognizable by the characters above given. 



It occurs in California and Arizona. 



26. T. lievus Say (PI. VI., fig. 6).— Form subdepressed. Color piceous, often 

 more or less tinged with rufous. Head large, as wide as the thorax at apex ; 

 frontal grooves very short, almost punctiform ; eyes moderate, slightly flattened; 

 antennae submoniliform, less than one-half as long as the body, piceous, the first 

 two joints very pale testaceous, the second stouter and very distinctly longer than 

 the third, joints 3-10 nearly equal, the eleventh much longer and acute at tip ; 

 palpi pale testaceous. Prothorax subquadrate, nearly twice as wide as long, 

 slightly narrower at base than apex ; apex truncate; transverse impressions dis- 

 tinct, the posterior deeper, the median line very fine or nearly obsolete, extend- 

 ing between them; basal impressions small, deep; base truncate, obliquely so 

 each side; sides with the margin very narrowly reflexed, .strongly arcuate in 

 front, oblique, or at most obsoletely sinuate behind ; hind angles obtuse, but not 

 rounded, not carinate. Elytra oblong-ovate, about one-half wider than the 

 thorax, with a sutural and from one to three abbreviated dorsal stria?, the latter 

 very fine or nearly obsolete ; stria? impunctate; marginal stria obsolete, repre- 



TRANS. AM. KNT. SOC. XXVI. (28) MARCH, 1900. 



