33 
English and American works as the Goniocotes hologaster, which doubt- 
less accounts for its not having been described until quite 
recently. 
It is a large, conspicuous species, about 3 millimetres 
in length, quite broad, the head nearly circular in front 
and constricted behind, the thorax small, the abdomen 
widening to near the end and terminating abruptly. 
The head, thorax, and legs are yellowish, with dark mar- 
gins and spots; the abdominal segments bear lateral 
whitish fasciae bordered with black. 
fig. is.— Gomo- It: appears to De much less common than some other 
cotes abdominaUr species of chicken lice, notablv Menopon pallidum and 
^ a (Aft"' Lipeurus variabilis. 
Denny). 
PIGEON LOUSE. 
(Goniocotes compar Xitzsch.) 
A species which has been familiar for 
a long time and generally common, aloug 
with other lice, on domestic pigeons. It 
is a rather small-sized species, a little 
more than a millimetre in length. The 
head is rounded in front, narrower be- 
tween the antennae, broadest near the 
posterior margin. The thorax is nar- 
row, the abdomen in the male broad- 
est near the posterior end and squarish 
behind, in the female more regular and 
broadest near the middle. It is whitish, 
with a rather broad brownish margin, 
from which prolongations extend inward 
upon the sutures. 
Fig. 
!9. — Gonioct U i compar. (Original.) 
THE PEACOCK GONIOCOTES. 
(Goniocotes rectangulatus Nitzscb.) 
This species which shares with the Ooniodesfalcicornis 
the hospitality of the peacock, was first described by 
Xitzsch (Germans Mag., hi, 294). It is a small Bpecies, 
about the size of the hologaster, which ir resembles quite 
closely. The head is squarish, somewhat rounded in 
front, while the thorax and abdomen are short and 
oval. 
While less noticeable than the larger species ass. >ci 
ated with it, it is probably no less abundant. 
21122— No. 7 3 
Fig. 20.— G onio 
cote 8 rectangulatus. 
(After Piajiet.) 
