384 Mr. A. G. Butler on Madagascar Lepidoptera. 



distal end of the fingers in the three specimens in the 

 Museum collection, which are males. The upper finger (or 

 dactylus) is, in all three, more curved and a little shorter 

 than the lower. Besides the specimen from Samangkabaai, 

 the examples in the Museum are from Rodriguez and the 

 Samoa Islands. 



Palcemon lepidactylus, Hilgendorf. 



A small male in the collection, without definite locality, 

 I refer, with some hesitation, to this species. The ros- 

 tral formula (") and the form and proportional length of the 

 joints of the larger leg of the second pair agree exactly with 

 the description and figure of Hilgendorf (Monatsber. Akad. 

 Berlin, p. 838, pi. iv. figs. 14-16, 1878). The hairs on the 

 inner margins of the fingers of the smaller hand, however, are 

 few and scanty, like those of the larger hand. The granules 

 with which the surface of the joints of both limbs are covered 

 are small, and only on the inner margin of each limb are 

 developed into small spines. 



The specimen is of small size, and probably does not pre- 

 sent the fully adult characteristics. 



Besides the above, there are in the collection three examples 

 of Palosmon from Java, which may belong to a new and 

 distinct species. In all, however, one or other of the large 

 limbs of the second pair are wanting ; and none, probably, of 

 the specimens present the characters of the fully adult. I 

 will therefore leave them undescribed for the present. They 

 differ from P. grandimanus, Randall, in the form of the larger 

 chela (which is not so greatly dilated and compressed, with 

 the fingers meeting along their inner edges when closed), from 

 P. javanicus, Heller, in the much shorter carpus of the second 

 legs (which is much shorter than the palm), and from P. lati- 

 manus, Von Martens, in the more numerous teeth of the 

 rostrum. 



[To be continued.] 



XXXVI. — On a Collection of Lepidoptera from Madagascar, 

 with Descriptions of new Genera and Species. By Arthur 

 G. Butler, F.L.S, F.Z.S., &c. 



[Continued from p. 344.] 



Liparidae. 



Xanthodura, gen. nov. 



Form of the eastern genus Dura, but more nearly allied to 



Orgyia. The antenna? very small ; body very short. Prima- 



