110 PROCEEDINGS OF THE NATIONAL MUSEUM VOL, 95 
It is now a well-established fact that the lice described by the author 
under the genus Virmocotes are nothing more than the juvenals of 
various species of Strongylocotes, and taking this into consideration 
a further careful study of Piaget’s description and figure of Goniodes 
setosus leads me to believe that it is an immature specimen of a race 
of Strongylocotes complanatus, probably the same or very close to 
S. complanatus variegatus Carriker (1936, p. 86) described from 
Orypturellus variegatus salvini. No form of Strongylocotes has as 
yet been recorded by modern authors from Piaget’s host of setosus 
(Crypturellus v. variegatus), which may very likely prove to be 
different subspecifically from S. c. variegatus Carriker, and so it is 
possibly better to keep the two forms separate until fresh material 
can be examined from C. v. variegatus. Should these prove to be 
the same as S. c. variegatus Carriker, then that name becomes a 
synonym of S. c. setosus (Piaget). 
One of the principal characters that led me to believe that the 
type of setosus was an immature of complanatus is the shape of the 
metathoracic apron, which is typical of all species of Strongylocotes 
having a median projection on the clypeal band, while no known 
species of Strongylocotes lacking this projection has the metathoracic 
apron of the shape shown in Piaget’s figure of setosus. The absence 
of the median projection on the clypeal band (in Piaget’s figure) has 
no significance, since this projection is always absent in ald young 
of the genus, while the shape of the tip of the abdomen also differs 
radically in the young. The above arguments, taken in connection 
with the fact that a race of complanatus has been taken on a closely 
related subspecies of the host of setosus, seem to be conclusive evi- 
dence. 
STRONGYLOCOTES SUBCONICEPS SUBCONICEPS Carriker 
Strongylocotes subconiceps CARRIKER, Lice of the tinamous, p. 90, pl. 8, figs. 1, 
la, 19386. (Host: Crypturellus soui inconspicuus, Bolivia.) 
A. series of 21 adults of both sexes and immature were taken on 
three individuals of Crypturellus soui meserythrus at Tres Zapotes 
and Cerro Tuxtla, Veracruz, Mexico. 
This series is very uniform inter se and extremely close to the 
type series of subconiceps in all respects. The peculiar truncate- 
conical shape of the head, the narrow, scarcely protruding meso- 
thorax, and the curious apical segments of the abdomen in the male 
combine to make this species easily recognizable. The taking of 
this form on the Mexican host C. s. meserythrus makes the fifth race 
of @. sout on which I have found it, a very unusual record for any 
mallophagan parasite of the tinamous, all of which would seem to 
offer strong proof of the very close relationship between the races 
