ORTHOPTERA. 



273 



clearly implying that it is double-brooded. Both he and Sorhagen 

 {Klein-Schmett. d. Mark Brand., 317, 1H86) give, as one of its foodplants, 

 Erytkraea littomlis, which is not included by Barrett in his remarks as 

 quoted by Tutt {loc. cit.)] . — Ibid. [Hoffmann adds Gentiana ger- 

 manica. — T.A.C.] . ^ 



W'^ R I A T I N. 



Variation in second-brood of Pericalll\ syringaria. — With refer- 

 ence to Mr. G. 0. Day's note on this subject, which was published 

 antea, pp. 108, 129-130; my experience with the second- brood of 

 Pericallia si/rini/ana has been widely different from his. In Sep- 

 tember, 1892, and August, 1893, I was fortunate enough to obtain, 

 without any artificial forcing, second-broods of this species, but 

 on each occasion, although all the larvae were sleeved together 

 throughout on a lilac bush growing in the garden, the majority of 

 them refused to respond to the excessive heat, or to feed up until the 

 following year. Both these partial second-broods, however, were much 

 larger numerically than the one secured by Mr. Day, and must have 

 together numbered between 30 and 40 individuals. But the interest- 

 ing points are — (1) that whereas Mr. Day's two^" s of the second-brood 

 followed the ordinary colouring of the 2 , all my second-brood <? s 

 showed the normal colouring of the $ ; and (2) that although Mr. 

 Day found his five second-brood imagines "much about the usual size," 

 all my second-brood moths were remarkably small, the males, accord- 

 ing to a fair estimate, showing an average expanse of only 32mm., and 

 the females of only 35mm., instead of averaging 86mm. and 38mm. 

 respectively, as was the case with their own brothers and sisters, who 

 preferred to appear at the ordinary time of year. Only the very largest 

 second-brood specimens were equal in size to the smallest ones of the 

 May (1893) and June (1892 and 189-4) broods. Curiously enough the 

 smallest $ that I have ever seen, expanding only 29mm., was bred by 

 myself m June, 1894, the rest of the brood- being of full size, and the 

 larvae having been supplied with an abundance of food ! All my broods 

 of P. syriiKjaria, referred to above, originated from Kentish larvae re- 

 ceived in 1891. — Eustace E. Bankes, Norden, Corfe Castle. July 

 mth, 1904. 



®RTHOPTERA. 



The genus Stenobothrus, Fischer. 



By MALCOLM BURR, B.A., F.Z.S., F.L.S., F.E.S. 

 To the student who first attempts to name our British grasshoppers, 

 this is the genus which offers the greatest difficulty. We have six 

 species in Great Britain, representing the four subdivisions of the 

 genus, so it will be seen that these six are not very closely allied to 

 each other. But when we turn to the continental fauna it is discourag- 

 ing to find nearly 60 species, of which no fewer than 30 occur in Spain 

 alone. In his Frodromus der Europaischen (hthopteren (1882), Brunner 

 divides the genus into five subdivisions. In 1900, Bolivar effected a 

 revision of the 30 Spanish species. He recognises four subdivisions and 

 calls them subgenera. But if we are to regard the genus as the division 

 next to the species, we must either reject Bolivar's subgenera, or raise 

 them to generic rank. Owing to the number of species the latter course 

 is preferable. Bolivar distinguishes them as follows : — 



