16 Mr. T. B, Flff^ber on the fjeniLS T)enteroco'puH. 
weakest is near tlie base ; tlie second is strong, milled up in the 
shape of a funnel, sprinkled with brown at its l)ase, and is situated 
at tlie root of the first pair of spurs ; the third is still stronger and 
longer, is likewise ruflled up and thickly suffused with blackish and 
is situated at the extremity of the tibia : the upper pair of spurs 
reaches somewhat beyoncVthe extremity of the tibia and is thickened 
with hairs, rusty-yellow on one side, on the other white and blackish- 
brown at the tip ; the second pair of spurs is as long as the first tw’o 
tarsal joints and is also hairy on one side, rusty-yellow', black at the 
root and in the middle, and at the tip wdiite with a small black spot. 
The first three tarsal joints are rusty- 3 'ello\v, the first wdth a some¬ 
what weak apical hair-funnel, tlie second with a weaker hair-funnel 
white apically, the third wdth a still weaker browm hair-fnnnel; the 
last tw'o joints are black. 
“Forewdngs 2| to 2^ lines long, moderately slender ; the fissure 
stands somewhat separated. The first segment, which is almost 
half as long as the wdng, is brown and strewn longitudinally wdth 
blackish scales. A bright yellowdsh transverse streak cuts off the 
beginning of the darkening to a narrow' bar. The costal cilia are 
bright rust-yellow wdth three black longitudinal streaks at. equal 
distances up to the apex. The yellowdsh inner-marginal cilia are 
blackish at the mouth of the fissure ; betw'een these places and tlie 
black streak coming out to the tip of the w’ing the fringes are light- 
yellow on the blackish edge-line. The second segment is browned 
on its outer three-fourths, darker than the first segment ; at its 
middle it splits into two divergent, linear subsegments, of wdiich the 
anterior is the longer ; the cilia of both subsegments are of the ex- 
tremest pale-yellow at the tip ; moreover, the first subsegment is 
black-fringed at the extremity of its fore-margin and also on the 
inner half of its lower-margin ; and all the cilia of the second subseg¬ 
ment are also so coloured; but both these subsegments have black 
scales at their apices at the base of the pale cilia. 
“ The first tw'o segments of the hindwing are cleft up to three- 
fourths of the wdng-length ; they are faintly browned posteriorly 
and the lower margin of the second segment has thei)alest yellowdsh 
cilia. The third segment is so extraordinarily short that it only 
reaches a little beyond the cleft between the first tw'o segments ; it 
is very slender, and has in the middle of the dorsal margin a small 
deep-black scale-tufr,, and at its apex is edged w'ith a large rounded 
black scale-spot enclosing both margins. 
“ Underside coloured almost like the upperside. 
‘^Habitat. —Java. I have named the species after its discoverer, 
Herr J. af Tengstrbm, the airthor of the ‘ Bidrag till Finlands Fjiiril- 
Fauna.’ ” 
