470 Miscellaneous. 



Zeuxaltis, subgenus novum. 

 Outline and neuration of Zeuxidia, but the secondaries 

 thinly scaled and semitransparent, with the exception of a 

 broad border encircling the wing and an arched series of six 

 broad internervular elongated patches crossing the outer 

 portion of the basal half from the costal vein across the dis- 

 coidal cell to the submedian vein ; the first three of these 

 patches are much thickened and covered by broad flattened 

 tufts of long hair, 



Zeuxidia (Zeuxaltis) Pri/eri, sp. n. 



Primaries above nearly as in Z. victrixy but the apical area 

 much wider between the blue arched belt and the outer 

 margin, especially towards costa : the secondaries considerably 

 paler owing to the thin scaling on these wings excepting in 

 the borders and glandular patches ; the first three of these 

 pale in colouring, but almost concealed by blackish tufts of 

 hair, the remaining three much more elongated and deep 

 pitchy brown, the last (upon interno-median area) very much 

 elongated ; the costal, outer, and inner borders pitchy brown, 

 the basal half of the submedian vein bearing a fringe of long 

 hair ; a very well-defined wavy blue submarginal band, partly 

 concealin"; the brown outer border and emittino; an oval elon- 

 gated spot inwards upon the first median areole. Tlie under 

 surface resembles that of the allied species, which this insect 

 corresponds with in expanse of wings. 



6. Sandakan, N.E. Borneo. Type coll. B. M. 



The narrow wavy submarginal band of the secondaries and 

 the different arrangement of tufts on the secondaries, as well 

 as the curiously diaphanous character of these wings, due to 

 the somewhat diflferent structure of the scales, readily distin- 

 guish it from all the known forms of Zeuxidia^ Amathusia, 

 Aviathuxidia^ &c. 



MISCELLANEOUS. 



Astacus vindicated as the Lohsier's Genus. 

 By the Kev. Tuomas 11. R. Stebbing, M.A., E.ll.S., F.L.S. 



A CLEVER man invented a mechanical speaking figure, and subse- 

 quently, it is said, in a frenzy of disappointment at the results of 

 his ingenuity, himself destroyed it. A similar course, ajtart from 

 the frenzy, may be strongly recommended to Mr. Pocock for the 

 treatment of his new principle in zoological nomenclature, " for 

 selecting the type species of a genus when no type has been desig- 

 nated by the author." He says that it may be stated as follows : — 

 " "When the name of a genus is the same as that of one of its 

 component species, that species is the type of the genus." 



