On new Species of Lepidoptera from Japan. 349 



similar to those of that species ; but the radial apophysis is 

 shorter, stouter, and more obtuse at its extremity, the process 

 also within its curvature is straighter, shorter, and stouter. 



It is also allied to Walckenaera erythropus, Westr., though 

 the palpi, as well as the eminence on the caput of this last 

 species, differ in structure, the digital joint being larger, the 

 radial apophysis less strong at its extremity, the process within 

 its curvature longer, more prominently turned upwards, and 

 furnished with a cusp-like point at its end. 



A single example received for examination from Count 

 Keyserling, by whom it was found near Munich. 



EXPLANATION OF PLATE XVII. 



Fiy. 1. Neriene rasa, sp. n., c?, p. 343. Dux. a, profile, without legs or 

 palpi ; b, frout view of eves and falces ; c, left palpus, sideways, 

 above and a little underneath in front ; d, curved process at base 

 on outer side of palpal organs, from in frunt ; e, natural length 

 of spider. 



Fiy. 2. Neriene Keyserlinyii, sp. n., $ , p. 344. German}', a, profile, 

 without legs; b, front view of eyes and falces ; c, hinder extre- 

 mity of abdomen, from underneath; d, same as c, in profile; x, fold 

 in front of spinners, supposed to conceal spiracular orifices ; y, 

 the same as x, in profile ; e, genital aperture ; f, natural length 

 of spider. 



Fiy. 3. Neriene iracunda, sp. n., c?, p. 348. Liivland. a, profile, with- 

 out legs or palpi ; b, front view of eyes and falces ; e, left palpus, 

 from outer side, rather in front ; d, ditto, in front, rather on 

 inner side ; e, natural length of spider. 



Fig. 4. Walckenaera nasuta, sp. n., $ , p. 347. Lisbon, a, right palpus 

 on outer side; b, humeral, cubital, and radial joints of left 

 palpus, from in front ; c, profile, without legs or palpi ; d, natural 

 length of spider. 



Fiy. 5. Walckenaera conyenera, sp. n., J (profile, without legs or palpi), 

 p. 348. Munich. «, caput, from above and behind ; b, left pal- 

 pus, from above and rather in front; e, radial joint of ditto ; d, 

 natural length of spider. 



XLI. — Descriptions of new Species of Lepidoptera from 

 Japan. By Arthur G. Butler, F.L.S., F.Z.S., &c. 



The moths described in the present paper were mostly pre- 

 sented to the British Museum by Mr. Henry Pryer of Yoko- 

 hama, who collected them in that locality. Amongst them 

 are many species of great interest, exhibiting marvellous re- 

 semblance to well-known European types, whilst one or two 

 show greater similarity to forms occurring in the New 

 World. 



