706 
ZOOLOGICAL LITERATURE. 
Hagen (Ent. M. Mag. i. p. 250) suggests that the discrepancy between the 
statements of observers as to the luminosity of the Fidgorce may be due to the 
possession of that property by only one sex of the insects, or to its being ma- 
nifested only at a certain season. 
New genera and species : — 
HyalestheSj g. n., Signoret, Ann. Soc. Ent. Fi\ 4^ ser. tome v. p. 128. Al- 
lied to Cixius j vertex longer than broad ; keels of scutellum scarcely visible j 
nine terminal cells in elytra. Sp. II. obsoletus, Sign. l.c. p. 128— Ilyalesthes 
(Amyot), from the south of France. 
Lystra cerifera mexicana^ Castillo, Bol. Soc. Geogr. Mexico, 1865, with a 
coloured plate. 
Cixius ohscurus and C. distinctus, Signoret, 1. c. p. 127, South of France. 
Delphax jiampes, Sign. 1. c. p. 129, Paris j D. quadrimaeidatusj Sign., 1. c. 
p. 130, La Teste and St. Valery j and 2>. luyuh?-is, Sign, ibid., Meudon. 
Issus eryenensis and I. mcmtcmus, Becker, Bull. Soc. Nat. Mosc. xxxvii. 
pt. 1. p. 482 j and I. arimdinus, Becker, 1. c. p. 489, from Sarepta. 
Ilistei'opteron (sic) limhatum, Costa, Ann. Mus. Zool. Nap. ii. p. 137, from 
Palermo. 
Flata desertorum and F. artcmisice, Becker, 1. c. p. 489, from Sarepta. 
Flatoides principalis^ Stal, Q^fvers. Kongl. Vet.-Akad. Forh. 1805, p. 159, 
from Malacca. 
Pochazia sinuata, StSl, 1. c. p. 160, from Malacca j and C. funebris, Stal, 1. c. 
p. 161, from Bourou. 
Ricania. Stal describes the following new species : — R. discoptera, 1. c. 
p. 161, from Java R. limitaris, ibid., and R. ptdverosa, p. 162, from Cam- 
bodia ; R. albo-siynata^ p. 161, and R. maryine-notataj p. 163, from Mysol; 
R. episcopalis, p. 162, from North China and Formosa; R. plcbeja, ibid., from 
Siam ; R. subfusca, ibid., from Borneo ; R. tristictda, p. 163, from Fiji ; and 
R. hedenboryij p. 162 (from Bhodes? Nubia?). 
Armada tayalica^ StM, 1. c. p. 163, from Manilla. 
Miriza osmyloides, from Borneo ; 31. sororcida, from Cambodia ; and 31. 
hilarisj from Mysol. StSl, 1. c. p. 164. 
Cromna eleyans, Costa, 1. c. p. 149, pi. 1. fig. 10, from Australia ? 
Tettiyometra. Fieber Q. c.) describes the following new Eiuopean species : — 
T. fusca, p. 563, from Belgrade and Austria ; T. depressa, ibid., from Sarepta j 
T. brachynota^ p. 565, from Switzerland ; T.pelioicenia, ibid., from Sarepta and 
Trieste ; T. helferi, p. 666, from the Euphrates ; T. vitelUna, ibid., from South 
Russia ; T. varia, p. 667, front Sarepta ; T. frontalis, ibid., from Germany, 
Switzerland, and Spain ; T. brachycaphala, ibid., from Sicily ; T. hispidula, 
p. 668 (^=.hoxaspina, Kid.), 1\ macrocepliala, p. 669, fr*om Germany and 
Switzerland ; T. picta (Mey.-I)iir), p. 670, from Spain ; T. yriseola (Mey.- 
Diir), ibid., from Sarepta, Ilyeres, &c. ; T. sordida, p. 571, from Dalmatia; 
T. fasciata (Mey.-Diir), ibid., from Granada ; and T. costulata, p. 572, from 
the Euphrates and Spain. 
Membracim. 
Marshall describes the two British species of this family, Centrotus cornutus 
(Linn.) and Oxyrrhachis ycnistcc (Fab.). Ent. M. Mag. ii. p. 34. 
