52 Mr. A, G. Butler on the Blue-belted Species 



away, so that only the commencement of the fork is visible 

 on one side with the help of a lens. 



I cannot at all agree with Herr Kogenhofer in his view that 

 these genera should be placed near to Procris ; the entire 

 structure is, in my opinion, that of the Chalcosiidse, and, 

 indeed, we have an unnamed genus in the Museum, unfortu- 

 nately without any indication of locality, which is distinctly 

 intermediate between Pedo]3tila and Agalope, being almost of 

 the form of the latter ; but not at all widely differing from the 

 former in neuration, excepting that there are several cross-veins 

 (three on one side and four on the other) uniting the costal 

 vein of primaries to the costal margin, and that the subcostal 

 vein has the normal number (five) of branches. 



Mr. M'Lachlan, who examined the type of Himantopterus 

 and described its structure in the Belgian ' Entomological 

 Annals ' for 1877, kindly forwarded to me his very careful 

 sketches ; I, however, failed to note in his sketch of the 

 hind wings the discocellular vein of his description: — "II 

 n'existe pas de reticulation transversale, except^ une seule 

 veinule discoidale." I regard the presence of this veinlet as 

 most important, since it proves the existence, in however 

 rudimentary a condition they may be, of the subcostal and 

 median veins, neither of which are, however, represented in 

 the published figures or even referred to. 



In my figure of Pedoptila I see that the engraver has trans- 

 posed the numbers j, thus giving the impression that the 

 moth is twice the size of the woodcut. I failed to note this 

 error on the proof of the cut. 



VI. — On the Blue-lelted Species of the Butterfly -genus Prothoe. 

 By Aethue G. Butlee, F.L.S., F.Z.S., &c. 



The genus Prothoe has hitherto been supposed to contain 

 only one blue-belted species, Prothoe Franclc (subsequently 

 corrected to FrancTcii) of Godart's ' Encyclopddie.' 



Prothoe FrancMi was described in 1819 from a single male 

 specimen received from Java 5 the diagnosis at the head of 

 the description runs as follows : — 



" I^ym. alis subcaudatis, supra nigris : anticis fascia obliqua 

 alba azureo maiginata : posticis subtus basi fusco inscriptis, 

 apice virescenti pulverulentis." 



Hiibner, in his ' Sammlung exotischer Schmetterlinge,' 

 vol. ii., gives an admirable figure of the male, and Hewitson, 



