ON ORGYTA AT'ROLT:\rriATA, GN., AT RK.TAR. 117 



exposed, the wini^s extend to about the end of 2nd leg, and beyond them 

 is the tarsus of the 8rd leg. The wing has some breadth, and the hind- 

 wing is represented by a small angular portion that dips under the front 

 Avingj and, being so hidden, might be as well developed as the forewing. 

 Imago : The 3' moth appears to be very close to, if not identical 

 with, Dr. Staudinger's var. (/iiadarraijiensis. The colour is a very 

 black-brown, with a little ochreous shading at the base of forewing, and 

 the cilia of forewing, not certainly golden, but dark reddish-brown ; 

 there is faintly indicated in some specimens a darker central fascia, 

 a darker disco-cellular shade, and a few of the nervures darkly 

 outlined. 



The 2 of < ).anridniihata\^ about the size of that of (K antiijua, but is 

 more cylindrical, /.('., of about the same size for the greater part of her 

 length, with the ends more truncated. The colour is rather yellower 

 than that of O. antiijua, but she is especially covered with a thick coat of 

 very glossy, silky, wavy hairs, that I have already referred to as making 

 her look as if clothed in a very comfortable coat of sealskin. Unlike the J 

 oio.aplf'ndiila, the head is free and carries very definite antennjB and labial 

 palpi. The head is brown, l-27mm. across and about 1-Omra. vertically. 

 There appears to be nothing recognisable as eyes. The antennae are 

 short, thick, batons •27mm. long and -OOmm. wide, thicker at the base. 

 They consist of one piece only, but this is evidently a large number of 

 joints anchylosed together, the first large urceolate joint and the second, 

 similar but smaller, are, perhaps, not always quite united to the others, 

 though the second is sometimes so firmly united to them that any line 

 between them is difficult to distinguish, it inay even be so fused to the 

 flagellum, that the antennse consist apparently of only the one basal 

 joint and the flagellum. The flagellum is only one piece, but with 

 a series of incisions that shows it to consist of from 16 to 20 

 joints fused together. The labial palpi are comparatively lai'ge and 

 conspicuous, consisting each of two nearly globular joints about -llmm. 

 in diameter, no third joint can be found, on either side is a small angular 

 projection, which is probably the maxilla. On one specimen is a double 

 antenna-like projection -Svam. long in the eye region. This seems to 

 be one of those monstrosities to which dwindling structures are liable. 

 The legs are about 3-Omm. long (if straightened out). The tibis 

 and alfthe joints of the tarsus are anchylosed into one straight piece. 

 In all cases the tibio-tarsal articulation is obvious, the end of the tibia 

 being marked by a spine and two spurs, the line of articulation of the 

 spurs being obvious though they appear to be anchylosed. In one or two 

 cases this tibio-tarsal joi'nt seems to be not completely solid, at any 

 rate fracture and disarticulation occur easily here in some specimens. 

 In most cases, or at any rate where the specimen is not carefully pre- 

 pared as a transparent object, the tarsus seems to be all one piece. In 

 reality it is five joints fused together, as marked sometimes by Ihies of 

 union and by the distribution of the spines, which mark five marginal 

 rows, or places where the spines are stronger. The claws are curious, 

 and they are not very strong. Their curvature takes place almost 

 entirely 'by a bend of about 90" at their middle, and half way from 

 this to the apex they make a slight curve or bend in the opposite 

 direction producing a peculiar and useless- looking aspect. 

 The forewing is a rounded bag-like lappet 0-Hmm. long and 

 0'-l2mm. wide, with a few hairs over its surface. The hindwing has 



