])atch showing a largor black spot than in typical .spccimcn.s 

 from Upper Amazons and Pern. 



12. A form of aeodc showing condensed y(>llow patch in 

 fore-wing, and thereby exhibiting a transition to mti/daniia, 

 Erich.8. 



13. Eueides, sp. nov., allied to eneidma, Ob., also shown. 

 It is remarkable that another species of this curious group 

 of Eueides should turn up in Matto Grosso. In comparison 

 with the French Guiana species, this one has the yellow spots 

 of the fore-wing closer together, and the hind-wing has typical 

 eralo flame streaks. It bears a close resemblance to some 

 specimens of eralo tellus. 



The $ is not unlike the $ of th(\ Guiana s])ecies. The 

 difference between the sexes, which is unusual in Heliconius, 

 indicates some biological necessity, and probably shows that 

 the species belongs to a group apart from HeMconms. 



Mr. Kaye assigned eueidina to Eueide.s, Oberthiir having 

 ])laced it in Heliconius. 



It is evident that the Matto Grosso district around Cuyaba 

 would yield some very interesting results in Heliconius if a 

 large collection were made. 



The fore-wing patch of both melpomene and eralo begins to 

 break up into spots in the various areas of distribution of 

 these species proceeding from the Andes to the lower levels 

 of the Amazon basin and the coast. It must be notedj how- 

 ever, that in French Guiana, as in British Guiana, typical 

 melpomene far exceeds in numbers the various aberrations 

 which are known to occur with it. The large number of 

 forms of melpomene and eralo received from French Guiana, 

 and partly dealt with by Mr. Kaye in the transactions of this 

 Society, was the result of special collecting initiated by a well- 

 known Paris dealer in a manner calculated to make the most 

 of its commercial possibilities. 



European Orthoptera. — Lieut. E. B. Ashby exhibited 

 the following species : — 



Forficula auricularia, L., Arquata Scrivia. Acrida nasuta, 

 L. ; 11 males and 5 females ; River Stura, Turin. Stauroderus 

 hicolor, Char. ; Vicenza, Turin, and Arquata Scrivia. Chor- 

 ihippus {Stenobothrus) dorsalus Zett. ; River Stura, Turin, 



