—194— 
versely impressed near the middle of the base. Elytra two and one-half times longer 
and one-third wider than the prothorax, shoulders an obsolete longitudinal ridge, 
base of each elytron semi-circularely depressed. Legs short, all the coxee 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 Scydmenus. 
Cephennium anophthalmicum n. sp. Amber-yellow, elongate, convex, im- 
punctate, pubescence long, sparse, regular. 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 thick, obconical, rounded at the tip. Antennz as long as the prothorax, joint 
1 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 g and Io to- 
gether, 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 in 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 coxze contiguous, prosternum broad, 
flat ; mesosternum carinate, narrow, truncate posteriorly ; middle coxze small, separ- 
ated by the mesosternal carina ; metasternum very broad ; posterior coxze distant. 
Tarsi half as leng as the tibia, the joints subequal, tibize strongly clavate, thickest in 
the distal third. 
Alameda County, California. Sifted from vegetable debris together 
with a large number of Prnodsies cryptophagoides by Mrs. Marie Fuchs. 
One specimen. 
PSELAPHID., 
Pselaptrichus n.g. Antennal insertions approximate, front prolonged, narrow, 
sulcate. Maxillary palpus very long, the second joint sigmoid-clavate and coarsely 
tuberculate, 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 foveze, 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 trisinuate ; antennal cavities large, from the middle of the eyes to 
the middle of the posterior limit of the antennal cavities a fine carina, and between 
those cavities a narrow frontal septum. Antenne as long as the head and prothorax 
