393 
median pair in the fourth row are short, those in the third row 
moderately short; in the fourth row the intermediate setæ are pro- 
portionately short, only two fifths as long as the eyes and a little 
longer than the sublateral pair. 
Antennæ (tig - . 2 a). The upper one of the front hairs on the 
fourth joint is about as long as the two distal joints together and 
twice as long as the other. The upper branch is slightly more 
than two and a half times longer than broad; its flagellum is 
nearly four times longer than the branch, a good deal shorter than 
the breadth of the head, robust and strongly thickened in the di¬ 
stal portion. The lower branch is slightly shorter than the upper, 
scarcely twice as long as broad, strongly widening from the base 
outwards; the anterior angle is very broadly and obliquely cut off. 
The posterior flagellum is a little shorter than that of the upper 
branch and more than twice as long as the anterior flagellum; 
both flagella are shaped as the upper one but not quite as robust. 
Ihe globulus is large, as broad as the upper branch; its stalk is 
rather short. 
Trunk (fig. 2 c). Siender. — The fifth pair of tactile setæ 
not one half longer than the breadth of the segment, thin and di¬ 
stally faintly pubescent. The fourth pair is four fifths of the last 
aud veij thin. The third pair (fig. 2 b) is slightly shorter than 
the fourth, its basal fourth is thin, from thence it thickens gra- 
dually and rather strongly outwards to the end of the two thirds of 
the seta, where it rather suddenly becomes thin, and this t’ninness 
continues to the blunt apex. (In an exceedingly small specimen 
mentioned below the thickening is rather feeble). The thickened 
poition is clothed with oblique, short but very conspicuous pubes- 
cence, the distal thin portion is adorned with vertical and mucli 
longer pubescence. — The setæ on the penultimate and on the last 
segment are short and cylindrical. 
Anal Segment (fig. 2 d and 2 e). The tergum is rounded po- 
steriorl), with a small median protuberance of the margin; the 
submedian setæ are scarcely one fourth of the breadth of the ter- 
