106 PROCEEDINGS OF THE NATIONAL MUSEUM VOL, 95 
the female it is narrower and decidedly rounded. The temples are 
very little wider in the female but much more angulated, the posterior 
half of the sides being much more flattened. In intermedius the front 
is equal in the sexes, but the temples are more flattened posteriorly 
in the female. There is also a decided difference in the shape and 
chaetotaxy of the last abdominal segment in the female. Each side 
of the posterior margin is much more rounded, almost circular in 
shape, while the thickened hairs along the margin are fewer and 
much shorter, but the fine, intermediate hairs are still finer and shorter. 
The sides of this segment in complanatus are also much more rounded 
and the anterior end less pointed. The remaining abdominal chaeto- 
taxy is the same. 
MEASUREMENTS OF STRONGYLOCOTES COMPLANATUS 
complanatus intermedius 
—— | 
Structure Male Female Male Female 
TB YoY 72k DAMM A OE ON NU ar ae Toe a Te) PAY) eae oy ee a Qi8Oy [sie wiley: 2:95) pees t- 3. 23 
EET Ce es Uae tt eal eX MOS pale HLL 0. 74 0. 69 0.77 0.66} . 0.84 0. 69 0..87 0. 70 
Protnoraxc css eens ee eee ene 0. 34 0. 51 0. 35 0. 51 0. 36 0. 54 0.39 | 0.54 
Miesothordx ! yy) ee eyes ie eae 0. 48 0. 76 0. 54 0. 76 0. 52 0. 83 0. 52 0.79 
Meta thorax ies ike ey 0. 27 0. 50 0. 28 0. 50 0. 24 0. 55 0. 28 0. 56 
PAD OMOTY SCO nena iR mare tN) UK Wt 1. 48 1. 27 1. 65 1, 29 1. 60 1.10 1.82 1, 28 
Amfennae 2428s tases vow eel ONO ogee 0: 45-|z 222. - OF50 ese 0. 46 
STRONGYLOCOTES COMPLANATUS NIRMOIDES (Carriker) 
Nirmocotes nirmoides CARRIKER, Lice of the tinamous, p. 80, pl. 4, fig. 3, 1936. 
(Host: Crypturellus obsoletus punensis.) 
Diagnosis of lectotype-——The preantennal portion of the head is 
longer in the female and shorter in the male than in intermedius, with 
the same width at frons in both sexes of both races, but wider at the 
base in the female of nirmozdes, in the male the anterior angles of the 
prothorax are rounded, with the lateral notch obsolete, while in the 
zemale they are angulated as in both sexes of intermedius, but in inter- 
medius the lateral notch is present in both sexes. The sides of the 
prothorax in nirmoides are less emarginate and more divergent, the 
difference in width between the anterior and posterior margins being 
0.065 mm. in nzrmoides and 0.033 mm. in intermedius. 
The terminal segments of the abdomen in the male (that is, the last 
median segment and the ones on each side of it) are differently shaped, 
while there is a much abrupter narrowing of the abdomen at segment 
V, more nearly approximating S. c. interruptus in this character, 
although in all other respects it is nearer to intermedius. 
