GRYLLIDiE, ACRIDIID.E. 
413 
some i’emarks oh tlie' habits of this species as observed by him near Ilonfleur. 
He discovered the female depositing her eggs in the twigs of Calluna 
vulgaris. 
Qryllotalpa vulgaris. Kolazy, Verb. z.-b. Wien^ xxi. pp. 1085-1090, 
gives the result of some experiments concerning the food of this insect. He 
arrives at the conclusion that it is carnivorous. An individual devoured 
about 50 earth-worms between the 18th April and 6th June. Landois, 
Verb. Ver. Hheinl, 1871, pp. 58, 69, writes on the same subject j and, accord- 
ing to him, the principal food consists of vegetable matters, and he considers 
the insect does much damage in gardens, &c. by biting off the stems of 
various plants, though it also devours worms and larva). 
Acridiida:. 
Grarrr, Verb. z.-b. Wien, xxi. pp. 1097-1102, Taf. lx. discusses and 
figures the structure of the sound-producing organs of various species. 
Caloptenus differentialis is redescribed in P. Ac. Philad. 1871, p. 149, by 
Thomas, who also describes (/. c. p. 161) Opomala hracliypteraj 5 . 
Trachypctra hifo. Trimen notices the habits of this insect as observed by 
him at Graham’s Town, and remarks on the close manner in which it 
mimics the stones &c. in the locality it frequents, which he attributes 
to the action of natural selection (Nature, iv. p. 333 j abstract of paper 
read at British Association Meeting for 1871). 
Acridimn 2 Jeregrinum. The abundance of this species in Morocco is alluded 
to by Blackmoiie in Pr. E. S. 1871, p. xxxi. 
Tettix schranJd. F. B. White, Ent. M. M. viii. p. 16, records the occur- 
rence of an insect which he believes to be this species in Britain, and com- 
pares it with the allied species. 
Walker, 1. c. pts. iv. & v., describes the following now genera and 
species : — ■ 
Eynisacris \_reetius Eunidacris']^ p. 639 : type E. extranea, Monte Video. 
Cal\V]acriSf ibid. : type C. ^mdica, p. 641, Mexico. 
\_II^Apalacris, p. 642 : type A. varico)’nis, N. Hindostan. 
[II]Abracj'iSj ibid. : type A, dilecta, Santarem. / 
Eupropacris \_rectius Euprepacris\ p. 643 : type E. spectabilis, Cape of 0. 
Hope. 
Chromacris, ibid.t C, (Gryllus) s 2 )cciosa^ Thunb., and C. (Acridimn) coto- 
ratUf Serv. 
Agriacris, typo ^./croa*, Columbia. 
Opijjtacris, p. 650; type O. hilaris, New Hebrides. 
Syntomacris, p. 661 : type S. vittpennis, Amazons. 
Stenacris, ibid. : S. lanceolata, Santarem, concolor, Para, chlorizanSj E. Flo-* 
rida, p. 662. 
Glajjhyracris, p. 653 : type G. nigricans, Amazons. 
CJiariacris, p. 654 : type C. dulcis, Para. 
Ileteracris, p. 666 : H. P cmiiceps, p. 656, E. Africa, adjuncta, p. 657, 
Sierra Leone, cognata, p. 658, Natal, basalis, Sierra Leone, punctipennis, 
p. 659, Angola, annulifera, Cape, viridivitta, p. 660, S. Africa, iKrficiia, 
S. Africa, speciosa, p. 661, Sierra Leone, Immeralis, p. 662, Madagascar, 
illustris, p. 663, S. Hindostan, elegans, N. Hindostan, rudis, p. 664, Cejdon, 
indgnis, Burdwan, ducalis, p. 665, apta, p. 666, Silhet, strangulata, p. 665, 
