1116 The American Naturalist. [December, 
The type species had but a single ocellus on each side of the head, 
and may prove to represent a genus distinct from the forms with two 
ocelli. For the present, however we have no means of estimating the 
value of this character and the new Liberian species are provisionally 
described under Stemmatoiulus.’ 
Stemmatoiulus bellus sp. n. 
Plates XLI, and XLII, figs. 1-31. 
_ Body distinctly fusiform, especially narrowed caudad. 
Vertex even, smooth and shining, very finely striate longitudinally, 
with a trace of a median suture; no hairs except one on each side 
rising from a punctation. 
Clypeus even, smooth and shining with a few scattered piliferous 
_ punctations; immediately above the labrum with a row of peculiar 
clavate, decurved hairs. 
Labrum with a rather deep emargination and three teeth separated 
by deep incisions. 
Eyes of two very large ocelli, the superior of which is larger ; a small 
punctiform sense-organ mesad from between the ocelli. 
Antenne clavate, the second and fifth joints longest. 
Gnathochilarium and mandibles, see plates. 
First segment semi-elliptical the inferior corners rounded ; surface 
evenly convex, the margins not raised; two or three short striations 
near the posterior corners; surface apparently smooth and shining ; 
under a lens of sufficient strength it is seen to be very finely striate lon- 
gitudinally over the entire surface, as are all the other segments; no 
trace of a median line or suture; eight sete rising from punctations 
near the posterior margin. 
Subsequent segments with a very distinct median dorsal sulcus; on 
posterior segments this is gradually more deeply notched posteriorly ; 
the whole surface of the segments is very finely and closely striate lon- 
gitudinally; in addition to these there are numerous distinct oblique 
impressed line or striations, higher in front and at subequal distances 
apart, though closer together laterally than dorsally and closer on the 
posterior segments than on the anterior; there are about 26 of these 
oblique lines, 5-7 above the pores. The impressed lines are finely 
TI have seen the types of St. bioculatus (Gervais and Goudot) and of St. com- 
pressus Karsch. The latter is a dried female in the Berlin Museum There seem 
to be six conic setiferous processes on the last segment; the pore is located in the 
third area from the median line; the striæ are wider apart than in the African 
animals ; the legs shorter ; the body strongly compressed, short and robust. 
