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on the head, the relative length of the antennal branches, the shape 
of the globulus and of the anal plate, simple hairs on coxa and 
.trochanter of the last pair of legs, and no bulb on the end of the 
third pair of tactile setæ. 
20. Pauropus simulans n. sp. 
PI. VI, tig. 1 a — 1 d. 
Material . One adult and rather well preserved female. 
Head (tig. 1 a). The eyes are very large but yet a little 
smaller than in the preceding species: they are three and a half 
times longer than broad and twice as long as the distance between 
them. — The hairs are rather robust and sharply ringed, partly 
slightly clavate ; those in the first row and the inner pair in the 
second row are short, the outer pair in the second row is some- 
what longer than the inner but not as long as in the preceding 
species; the hairs in the third row are rather long; in the fourth 
row the submedian and intermediate hairs are almost equal in 
length and rather short, while the sublateral hairs are nearly twice 
as long as the others and half as long as the eyes. 
Antennæ (tig. 1 b). In most respects they are similar to the 
antennæ in P. oculatus, but differ sharply in certain particulars. 
The peduncle is more robust; the front hairs on the fourth joint 
are subequal in length and conspicuously shorter than the joint. 
The upper branch is very short and broad, only a little more than 
one half longer than broad; the flagellum is more than five times 
longer than the branch. The lower branch is considerably longer 
than the upper one, very broad, not twice longer than broad, 
strongly widening from the base outwards and with the anterior 
angle very deeply and obliquely cut off. The posterior flageilum 
is slightly shorter than that on the upper branch and slightly more 
than twice as long as the anterior flagellum; all three flagella are 
very robust and considerably thickened towards the end. The liair 
on the lower side of the lower branch is nearly twice as long as 
the front hairs on the fourth joint, very robust, strongly thickened 
