STUDIES IN NEOTROPICAL MALLOPHAGA—CARRIKER 113 
they go, are very good but hardly sufficient for the separation of closely 
related subspecies. Until fresh material from that host can be 
examined we must take for granted (by analogy) that the parasite 
from this host is different from those taken on the other species of 
Nothocercus. 
STRONGYLOCOTES SPINOSUS SUBSPINOSUS Carriker 
FIGURE 5, a—c 
Sirongylocotes spinosus subspinosus CARRIKER, Lice of the tinamous, p. 89, pl. 8, 
figs 2, 2a, 1936 (also male genitalia without number). (Host: Nothocercus n. 
nigrocapillus. ) 
The status of this form has been fully discussed above. Since cor- 
rected figures are herewith given, no further description is necessary. 
STRONGYLOCOTES SPINOSUS PERUVIANUS, new subspecies 
Strongylocotes spinosus (Piaget), Carriker, Lice of the tinamous, p. 88, pl. 7, 
fig. 4, 19386. (Host: Nothocercus nigrocapillus (near) cadwaladeri.) 
The original description and figure of the female, as cited above, are 
ample for the determination of this race. They are of the two females 
previously identified as S. spinosus (Piaget). 
STRONGYLOCOTES SPINOSUS BONAPARTI, new subspecies 
FIGURE 5, d 
Types.—Male and female, adults from NVothocereus bonaparti, col- 
lected by the author at Tierra Nueva, Sierra Perij4, Colombia, July 16, 
1941; in U.S. National Museum. 
Diagnosis.—This race is close to subspinosus, the differences being 
slight but constant. The male genitalia differ but slightly, the basal 
plate being somewhat narrower at its distal end, so that the paramers 
are set more closely together ; the paramers are slightly longer, heavier 
at base but slender apically; there are also slight differences in the 
structure of the endomeral plate. 
In subspinosus both sexes have one long hair attached on the poste- 
rior margin of abdominal segment I, at the inner point of the parater- 
gal plate. The succeeding segments, back to V, have a very short, 
slender hair at this same place. In bonaparti the male has a long, 
strong hair (longer than width of succeeding segment) in segments 
I to LV, while on V it is half the length. In the female there is a long 
hair only on segment I, while the hairs on the succeeding segments are 
so small as to be almost invisible. There are other minor differences 
in the abdominal chaetotaxy of the female, especially of the Spines and 
fine hairs on the genital plate. 
The clypeal band in both sexes is considerably narrower around the 
frons, in front of the break in this band. The anterior angles of 
575507—44——_3 
