STUDIES IN ACARINA I
H. V. M. HALL, POMONA COLLEGE, CLAREMONT, CALIFORNIA.
In the working up of large collections of Acarina recently made by me in the
Eastern United States and in the Southwest, there appear a number of forms ap-
parently undescribed, and I shall present fascicles of these from time to time,
with carefully prepared descriptions and illustrations.
Damaeus cephalotus n. sp.
Length .62-.64 mm. ; color chestnut, polished.
Abdomen hemispherical, without wings. Mandible chelate; cephalothorax quite
large, anchylosed to abdomen, but with deep suture between. Without lamella
or tectopedium. Rostral hairs stout and pectinate. Pseudostigmatic organ with
long peduncle and gradually clavate head, not pointed at distal end. Interlamel-
lar hair, fine and pectinate. Abdomen with scattering, stout, pectinate hairs near
the edge. Legs thin, a little longer than abdomen, sparsely set with fine hairs.
Figure 161. Damaeus cephalotus