— 194 — 



versely impressed near the middle of tlie base. Elytra two and one-half times longer 

 and one-tln'rd wider than the prothorax, shoulders an obsolete longitudinal ridge, 

 base of each elytron semi-circularely depressed. Legs short, all the coxa? approxi- 

 mate, the anterior ones contiguous, metasternum carinate. 



Linn County, Iowa. 3 specimens sifted out of decayed wood. I 

 am very much in doubt, whether this species can be retained in the 

 genus Scydmcpnus. 



Cephennium anophthalmicum n. sp. Amber-yellow, elongate, convex, im- 

 punctate, pubescence long, sparse, legular. Length, 0.9 mm. 



Head pendant, as wide as long, vertex smooth convex, twice as wide as the 

 distance from the base to the interantennal line ; antennal tubercles flat triangular, 

 clypeus quadrate ; eyes wanting. Palpus with the first joint very narrow, cylindrical, 

 three times as long as wide, the second not wider, globular, the third and fourth to- 

 gether tliick, obconical, rounded at the tip. Antenna as long as the prothorax, joint 

 I and 2 oblong, obconical, nearly half as wide as long, 3 smaller, little longer than 

 wide, 4 — 10 globular, 4-6 equal as wide as third, 7 somewhat larger, 8 smallest, 9 

 and 10 as thick as the second, the last joint slightly thicker, as long as 9 and 10 to- 

 gethei", oblong oval. Prothorax nearly as long as wide, sides evenly arcuate, near 

 the base slightly sinuate, basal angles rectangular, explanate, discus equally convex. 

 Elytra a little more than twice as long and slightly wider ni the middle than the pro- 

 thorax, disc convex, lines wanting, suture near the base elevated with a large, pubes- 

 cent fovea at the base in the middle of each elytron, scutel triangular, four times as 

 wide as its length, shoulders obsolete. Anterior coxae cqntiguous, prosternum broad, 

 flat ; mesosternum carinate, narrow, truncate posteriorly ; middle coxre small, separ- 

 ated by the mesosternal carina ; metasternum very broad ; posterior coxce distant. 

 Tarsi half as long as the tibiae, the joints subequal, tibi;^ strongly clavate, thickest in 

 the distal third. 



Alameda County, California. Sifted from vegetable debris together 

 with a large number of Pinody/es cryptophagoides by Mrs. Marie Fuchs. 

 One specimen. 



PSELAPHIDiE. 



Pselaptrichus n. g. Anlcmial insertions approximate, front prolonged, narrow, 

 sulcale. Maxillary palpus very long, the second joint sigmoid-clavate and coarsely 

 tuberculatc, the third small quadrate, the fourth broadly securiform, as long as the 

 second with short erect pubescence. 



P. tuberculipalpus n. sp. Yellowish brown, pubescence in regular rows, form 

 slender, slightly convex. Length, 1.66 mm. 



Head flat above, longer than wide, widest between the eyes, which are small 

 and situated at the angles of a pentagon forming the discus of the vertex posterior to 

 the oblong frontal prolongation ; the latter nearly quadrate, arcuate in front, sulcate 

 in the middle, the lateral half with the surface plane and inclined toward the sulcus; 

 just before the eye-line are two small fovea?, mutually twice as distant as either from 

 the eye and connected by a straight angular shallow sulcus with the frontal fissure ; 

 occiput slightly elevated with a fine carina in the middle, labrum small transverse, 

 clypeus anteriorly trisinuite ; antennal cavities large, from the middle of the eyes to 

 the middle ol the posterior hmit of the antennal cavities a fine carina, and between 

 those cavities a narrow frontal septum. Antenna; as long as the head and prothorax 



