398 
Head (fig. 4a). "The eyes are of middle size, slightly more 
than one half longer than broad, and a little shorter than the di- 
stance between them. — The hairs in the frst row are" short, 
slightly clavate; the inner pair in the second row is slightly clavate, 
rather long and almost longer than the outer pair. The submedian 
setæ in the two posterior: rows are short and slightly clavate; 
the remaining hairs are wanting or could not be made out. 
Antennæ (fig. 4a). The upper one of the two front hairs on 
the fourth joint is almost longer than the two distal joints together 
and twice as long as the other. The upper branch is short, a little 
shorter than the two distal joints together, scarcely two and a half 
times longer than broad; the fliagellum is almost four times longer 
than the branch and mueh shorter than the breadth of the head. 
The lower branch is slightly shorter than the upper, twice as long 
as broad, strongly widening from the base outwards, and the an- 
terior angle is moderately cut off. The posterior flagellum is a 
little shorter than that on the upper branch and a little more than 
twice as long as the anterior flagellum. The two longer flagella 
are robust and considerably thickened towards the end; the short 
flagellum is less robust. The globulus is very large, a little 
broader than the upper branch; the stalk is short. - 
Trunk (fig. 4 b). Moderately slender. — The fifth pair of 
tactile setfæ is short, somewhat longer than the breadth of the seg- 
ment, thin, conspicuously but delicately pubescent; the fourth pair 
is somewhat shorter than the fifth. The third pair is slightly 
shorter than the fourth; each seta (fig. 4 c) terminates in an al- 
most reniform, naked bulb which is about two and a half times 
longer than thick and several times thicker than the rest of the 
seta; this is almost thicker at the middle than towards both ends; 
distally it is elothed with vertical pubescence of moderate length, 
at the middle the clothing is shorter and less vertical, while the 
proximal part is naked. — The dorsal setæ on the two posterior 
segments are very short and very difficult to discover. 
Anal Segment (fig. 4d). The tergum is shaped almost as in 
