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head with exception of the eyes is exceedingly shortly and delicately 
pubescent. 
Antennæ (fig. 2a). The longest of the two front hairs on the 
fourth joint is almost as long as the three distal joints together 
and about twice as long as the other; both are shortly pubescent 
and not very thin. The upper branch is as long as the peduncle, 
about six times longer than broad; its flagellum is not fully twice 
as long as the branch. The lower branch is only a little shorter 
than the upper one and almost four times longer than broad; the 
distal margin as in the preceding species; the anterior flagellam 
is scarcely twice as long as the branch, and the posterior flagellum 
is three fifths of the anterior; all three flagella are more robust 
than in St. pedunculatus and scarcely thickened distally. The 
globulus is a little longer than thick (fig. 2b) and three times 
thicker than the middle of the stalk; this is cylindrical in its 
proximal three fourths and from thence it thickens gradually. — 
The peduncle and the branches are pubescent like the head. 
Trunk.  Moderately robust. — The fifth pair of tactile setæ 
are scarcely two and one third times longer than the breadth of 
the segment; in other respects the tactile setæ of all three pairs 
almost as in St. pedunculatus. — The six setæ in the posterior 
row on the penultimate segment and the six setæ on the last seg- 
ment are all more or less tapering and adorned with proportio- 
nåtely very long pubescence; the submedian setæ on the last seg- 
ment are a little longer than the others and slightly more than 
one third of the breadth of the segment. — The whole trunk is 
densely pubescent; anteriorly the pubescence is exceedingly short, 
Posteriorly it is very conspicuous. 
Anal Segment (fig. 2c and 2d). The tergum is posteriorly 
produced into a rather small triangular process which is about as 
long as broad. The setæ are arranged almost as in St. peduncu- 
latus; those of the submedian pair are placed still a little nearer 
to each other, they are half as long as the longest setæ on the 
preceding segment and a little longer than the intermediate pair, 
