STUDIES IN NEOTROPICAL MALLOPHAGA—CARRIKER 107 
The male genitalia seem to be identical in the two subspecies. The 
total length in both sexes is greater in intermedius, the head is much 
shorter but of the same width at the temples (0.76 by 0.69 against 0.84 
by 0.69) ; the abdomen in both sexes is shorter but not wider. 
As compared with S. ¢. complanatus, the total length is somewhat 
greater, with head about the same in the male but considerably longer 
in the female. However, the shape of the abdomen in the male sepa- 
rates at a glance the race of complanatus, there being no trace of the 
abrupt narrowing of the abdomen at segment V, while the shape of 
the terminal segments is quite different. In regard to the abrupt 
narrowing of the abdomen at segment V in the males of these races 
of complanatus, we have the extreme of this character in énterruptus, 
to a less degree in nirmoides, still less in intermedius, and none at all 
in complanatus. 
MEASUREMENTS OF STRONGYLOCOTES COMPLANATUS NIRMOIDES 
Male Female 
Structure a 
Length Width Length Width 
TRY ayo eb cut M Ms Mea eae A Gr Ct il a ag a PAA A || Seseutes  asapaale 3. 08 
Hea aj trabectlac ts ee ieee Me ihs UMM Auth eR in NS Mac Me ha ie wn ei QO: QDs) | eee re nue lite 0. 24 
LORI PICS Here ee URL Ne A eens nae a alee ee 0. 76 0. 69 0. 81 0. 70 
IPTOLR OLAX Cee Ma men NA os SNE ES LN eee te anes 0. 37 0. 53 0. 37 0. 54 
VIPS GENO AK ee eet eh Ore eR Ne ee AT ead 0. 52 0. 80 0. 57 0. 84 
Mietathoracicla prone esate ewes cee awe enon le 0. 26 0. 52 0. 29 0. 60 
PAD GOMOT ee een. BEES Ae ENN OUR NS Sl a 1. 50 1. 28 1.70 1.35 
PNYWUREY A AY sas UES NIE i go i a ea a ea ss a ap 0. 456 0. 065 0. 456 0. 065 
\ 0. 24 0. 24 
| ereanennaliregiome neice m adi we ee Ok eS DS eae 0. 20 0. 48 0. 25 0.52 
STRONGYLOCOTES COMPLANATUS INTERRUPTUS Carriker 
Strongylocotes complanatus interruptus CARRIKER, Lice of the tinamous, p. 89, pl. 
7, figs. 1, 1a, 19386. (Host: Crypturellus atrocapillus.) 
Further ornithological collecting in Bolivia by the author revealed 
the fact that the host of this louse, collected at Chiniri, Bolivia, was 
wrongly identified. It proved to be Crypturellus garleppi affinis, 
several additional specimens of which were later taken on the Chaparé 
River, from which additional series of parasites were taken that 
proved to be identical with the type series of S. c. interruptus. 
STRONGYLOCOTES COMPLANATUS BOUCARDI, new subspecies 
T'ypes.—Male and female, adults, from Crypturellus b. boucardi, col- 
lected by the author on Cerro Tuxtla, Veracruz, Mexico, March 28, 
1940; in U. S. National Museum. 
This race of complanatus is close to interruptus, having abdominal 
