Mr. T. B. Fletcher on the genus Deuterocojyus. 135 
tarsal joint; with long tibial spurs also indistinctly banded, the 
raised tufts at their bases rather less conspicuous than in the allied 
D. tengstroemi. Under-side of throax and abdomen very pale 
yellow ; the anal tuft ferruginous. 
“ Expanse of forewings 11 mm. 
“Java (Muli4) ; a single specimen. 
“ This species differs from D. tengstroemi, Z. . . . in the presence 
of the white spots and in the pale bases of the lobes of the fore¬ 
wings, also in the less thickly scaled posterior legs and in the absence 
of scales in the spurs themselves. . . 
The following is a translation of Pagenstecher’s original 
description of the form ruhrodactyhis :— 
“ In the Ribbe collection there are several specimens of a new species 
from Neu Pommern (Kinigunang) which is closely allied to the 
preceding (U. tengstroemi, Zeller [= ? atrapex — ^T. B. F.j) and which 
Herr Snellen regards as tengstroemi. Dr. Hofmann, however, makes 
the following comments 
“ ‘ Does not agree with the description of D. tengstroemi, Zeller, 
Linnaea Ent., vi, p. 402. The belly, the coxae, the sides of the 
pectus and the frontal area are bright sulphur-yellow, as is the 
upper-side of the two first segments of the abdomen. The forelegs 
have no scale thickening at the end of the tibiae and no spurs, as 
described for tengsU-oemi. [As already pointed out, Zeller’s state¬ 
ment to this effect is evidently incorrect. — T. B. F.] The very 
long spurs of the hind tibiae are not thickened wdth hairs. Fore¬ 
wings brilliant red-brown, with black longitudinal spots and tips 
dusted with black. Three segments in the hindwing as in tengstroemi. 
The species should be easily recognisable by means of the characters 
here indicated.’” 
In spite of Dr. Hofmann’s concluding remark, the above 
description is quite insufficient for the recognition of this 
form, and I have therefore drawn up the following descrip¬ 
tion from one of Ribbe’s original specimens now preserved 
in Lord Walsingham’s collection and labelled as the type 
of ruhrodactyhis (No. 73186):— 
5 . Expanse 12 mm. Palpi long, smoothly-scaled, erect; second 
joint whitish-ferruginous, broadly banded with dark-ferruginous at 
base and before apex; third joint acuminate, rather more than half 
length of second, whitish-ferruginous, broadly banded with dark- 
ferruginous at base and before apex. Antennae blackish-ferruginous, 
dotted with white above. Head ferruginous, summit of crown with 
