STUDIES IN NEOTROPICAL MALLOPHAGA—CARRIKER 103 
is a slight dimorphism in the antennae, the first segment in the male 
being much larger than in the female (about equal to the second), 
while the third is slightly conical in shape and attached somewhat 
latterly to the second. 
In this species, like others of the genus, the tergal plates are widely 
separated medially in the female, while in the male they are united, 
but not fused. The male genitalia have the endomeral plate and 
penis resembling those of longipes, but the basal plate is similar to 
that of genitalis and subsimilis. Flaps extend from each side of the 
basal plate downward along the sides of the paramers, giving added 
lateral support. The paramers are heavy and pointed, also resembling 
those of genitalis,; the penis is bifurcated, and has lateral protecting 
flaps attached to the end of the endomera! plate. 
MEASUREMENTS OF PSEUDOLIPEURUS GRANDIS 
From Nothocercus bonaparti Fe ee re 
(Colombia (Bolivia) (corrected) 
—_—<—— _ 
Structure 
Male Female 
Length | Width | Length | Width 
Length | Width 
LES OC y Petia U RLV DOOR So UUM Pei dl PAY IMSS NE ee ae PHATE MV) PRU eee 2. 92 
ET ed ear ae cds UME, Cane SAN Pee 0. 50 0. 37 0. 66 0. 50 0. 63 0. 49 
POULT Kel eh eM LS lo ae 0. 19 0. 25 0. 26 0. 33 0. 24 0.31 
ICT OCHOA Xs en CoemnengLens IDA eal 0. 34 0. 37 0. 44 0. 57 0. 41 0. 49 
PANDCOMION Pdi Ray CL EUs 8 TN Eat 1.30 0. 38 1. 76 0. 65 1.78 0. 58 
Mhirdifemurie.c oy Wawa ae TAN Ss MEE 0. 52 0.13 0. 62 0. 15 0. 56 0. 18 
BATE CETL TAO Pree teeth ssn ey NS eas Niins tate bie Ee al 0. 37 0. 046 0. 46 0. 053 0. 41 
Basalip later) wee we RMN EU als. & 0. 25 COSTES al ati Re ge CE A PR 
IAT AINOLS fs ee nN MeL NL Me al 0. 21 CUSSED US WAAL Uc at Aga TA a 
Genus PSEUDOPHILOPTERUS Carriker 
PSEUDOPHILOPTERUS HIRSUTUS SIMILIS, new subspecies 
FIGureE 4, e, f 
Types.—Male and female, adults, from Crypturellus cinnamomeus 
sallaez, collected by the author at Tres Zapotes, Veracruz, Mexico, 
March 27, 1940; in U. S. National Museum. 
Diagnosis—Male: The general shape of the head is similar to 
that of hirsutus, with broadly rounded temples and convex occiput, 
but the preantennary area has the sides more deeply concave and 
the frons wider. The antennae are shorter and thicker in both 
Sexes; the trabeculae are longer, and the hairs on the preantennary 
area are much longer, as in P. hirsutus obsoletus. 
The prothorax is short, as in Aérsutus, but with the strongly convex 
sides more convergent anteriorly. The pterothorax is wider, more 
