STUDIES IN NEOTROPICAL MALLOPHAGA—CARRIKER 109 
that race and with S. c. boucard?, except that the head and thorax are 
narrower (in the female). The shape of the head in the female is 
different from all other known races of complanatus. The lines of 
the head are much less divergent from the front to the eye, the com- 
parative width of the frons being a little greater and the width at the 
eye much less, while the temples project abruptly from the posterior 
edge of the eye, then slope rapidly inward to the narrow occiput. 
In the other races we have an almost straight line from the sides 
of the frons back to the widest point of the temples, then an abrupt 
convergence to the sides of the occiput. The clypeal band, which 
completely encircles the front of the head beyond the trabeculae, is 
considerably narrower than in the other races; so also is the median 
projection from this band, while all the other bands of the head are 
of the same width as in the other races. The shape and markings of 
the abdomen are very similar to those of boucardi, except the last 
segment, which is smaller (0.39 by 0.63 against 0.41 by 0.55 mm.), while 
its chaetotaxy is entirely different. In boucardi the posterior margin 
has a sparse series of about eight strong, longish hairs on each side, 
with probably 20 shorter, fine hairs intermixed with them. In ¢ter- 
tuptus the stout hairs number about six and are thicker and a bit 
shorter, while the fine hairs are shorter and finer. In fimbriatus there 
are about 12 of the long, strong hairs, with a correspondingly greater 
number of the fine ones, which, however, are much longer and thicker 
than in the other two races. The posterior margin of the last segment 
is also more tranverse in outline (less curving on each side), with the 
extreme lateral portions curving abruptly forward. 
MEASUREMENTS OF FEMALE SPECIMEN OF STRONGYLOCOTES COMPLANATUS 
FIMBRIATUS 
Structure Length Width 
BOC ype eat AUN ails ake NINE in leh Sia i yi ts, SN ul 2.93 
ERE Gh PES ear ae ES ET Ss ae Mae a holes pee en as areas eae aE re OB et 0. 78 0. 61 
JRF AO TH OVOP EES. Chay ear Ae Li I eae Rg lcs ee yee eM a eA ga 0. 37 0. 52 
EVIeSO OTs c mannan Pee Selina eh AL lan ig il a Nl a a i NM 0.56 0. 72 
MVE Gea GENT ates eee UI ec es eta LE I NR eek aie oe i 0. 30 0. 54 
NSO G (OY Oe cE ANE TIES St paca yo aN SE LN Sty A aa QR AR il, 7a 1, 24 
PAMNEONNACH. woo Vee ee a Ee es ee lia oa Deda Salil 0. 43 
STRONGYLOCOTES COMPLANATUS SETIFER Hopkins 
Goniodes setosus Piacet, Les Pédiculines, p. 263, pl. 21, fig. 9, 1880. (Host: 
Crypturellus [Tinamus] variegatus.) 
Strongylocotes lipogonus setosus (Piaget) Carrixer, Lice of the tinamous, p. 92, 
19386. 
Strongylocotes setifer HorpKins, Ann. Mag. Nat. Hist., ser. 11, vol. 9, p. 116, 
1942. Nom. nov. for setosus Piaget, preoccupied. 
