THE ENTOMOLOGIST. 



No. X. 



AUGUST, MDCCCXLI. 



Price 6d. 



Art. XXXI. — Analytical Notice of the '2nd Niimher of ' Arcana 

 Entomologica, or Illustrations of New, Rare, and Interesting 

 Exotic Insects.'' By J. O. Westwood, Esq., F.L.S., Sec. of the 

 Entomological Society, Etc. Etc. Published July 1st, 1841. 

 London: William Smith, 113, Fleet Street. 



The appearance of the second number of this periodical in July, 

 and the announcement on the wrajDper that "No. III. will be publish- 

 ed on the 1st of September," fixes the time of appearance to alternate 

 months, or six in a year. I mention this because I cannot find the 

 announcement in the prospectus or elsewhere. 



Plate V. represents two very singular lepidopterous insects, which, 

 although possessing all the habit and colouring of butterflies, Mr. 

 Westwood considers to be moths. In both species the antennae are 

 unfortunately wanting, and the author grounds his opinion that they 

 are moths on the structure of the feet and the arrangement of the veins 

 of the wings ; and constructs for their reception the new genus Epico- 

 peia. The most striking characters are these : maxillae none : hind 

 wings elongate, with notches between the veins and a large notch or 

 incision on the external margin : the protibise are armed with broad 

 moveable spines, the mesotibise are two-spined at the apex, and the 

 metatibia^ are double-spined both at the apex and also before it. 



Figure 1 represents Epicopeia Polydora of Westwood : it has the 

 anterior wings of a yellowish grey colour, with black veins, and the 

 hind wings black, with an abbreviated, white, median fascia, and five 

 stirrup-shaped, blood red, marginal marks, besides an anal lunula of 

 the same colour. The expansion of its wings is 5 inches : it is from 

 Assam, and unique in Mr. Solly's cabinet. (Arc. Ent, i. 19. tab. v. 

 fig. 1). 



Figure 2 is the Epicopeia Philenora of Westwood : it has the ante- 

 rior wings greyish lined with black, and a blood-red costal spot be- 

 neath ; the hind wings black with a chalybeous tint, and having a 

 small s])ot near the external angle, and another near the anal angle, of 



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