100 PROCEEDINGS OF THE NATIONAL MUSEUM VOL, 95 
Diagnosis.—Nearest to P. longipes (Piaget) in general shape of head 
and clypeal signature, but the antennae are quite different. In long- 
ipes there is almost no dimorphism in the antennae, while in the new 
species they are strongly dimorphic; the tip of the abdomen in the 
male strongly resembles that of P. subsimilis, while the male genital 
armature is nearest to the type of longzpes, but very different as to de- 
tail. 
MEASUREMENTS OF PSEUDOLIPEURUS SANCTAE-MARTAE 
Male Female 
Structure SS SSS SSS 
Length Width Length Width 
BES Ge ee ee ac ee DANSK Ny | (eames e 2,41 
VS (21 \0 Wate ih ACES HEN lee pe oe ee eee AES 0. 50 0. 37 0. 53 0. 41 
IP TOLMOT a Kee eR Ne NUNES OUR 2 Sa an ee 0. 18 0. 24 0. 19 0. 28 
IPGCLO LOTR Ke eee ee eae eee ese ore eee 0. 33 0. 36 0. 37 0. 41 
WraN} OXO CO} 60S) 0 age se PAI yl SEIN LE a i 1, 28 0. 35 1.50 0. 51 
PASTN GE TAT TEL aan ene at aa 0. 36 0. 04 0. 36 0. 04 
MH ird femurs aS a ee Ue I a 0. 52 0. 13 0. 50 0. 14 
Basaliplaten ee usewe ewer Uk 2 ean ey oe se rt 0. 25 CUE ee ee ala 
PP ATATTICTS Asics hee INE eee te at Se 0. 20 Ove ee 
PSEUDOLIPEURUS TATAUPICOLA, new species 
FIGURE 3, h-k 
Types.—Male and female, adults, from Crypturellus t. tataupa, 
collected by the author at Rio Lipeo, Bolivia, August 9, 1988; in 
collection of the author. 
Diagnosts.—This species, while having characters in common with 
several others, seems to differ considerably from all the known 
forms, just as its host is radically different from the other species of 
the genus. 
The shape of the head is between that of the long, slender-headed 
longipes and the short, wide head of ténamiand grandis. The chaeto- 
taxy of the last four abdominal segments in the maie differs radically 
from that of the female and from the other species of the genus. The 
structure of the pleural plates in the male also is rather unusual, 
especially in segments III to VI, the posterior portion being incised 
on the dorsal surface (see fig.). 
The antennae are very slightly dimorphic, with the first segment 
in the male practically equal to that of the female and shorter than 
the trabeculae. The genital plate in the female resembles, in shape, 
that of genitalis and grandis, with the double fringe of setae around 
the posterior margin very close to grandis. The clypeal signature, 
while resembling several other forms of the genus, is slightly dif- 
ferent from all, as is also the shape of the gular plate. 
