30 CATALOG UK OF 



pellucid, extending very much beyond the abdomen ; costal streak and sub- 

 costal streak brown; veins white. Length of the body 10 lines. 



a. Fan tec. 



49 1 . GRYLLUS ATRATUS. 



Mas. et fcem. Aler, robuslus, nitens ; caput margine anlico ferrugineo ; 

 antennae corpori tsquilonga ; ccrci ferruginei, abdomine breviores ; 

 oviductus abdomine pauilo longior, apice furcatus ,- femora postica 

 subslriata ; aloe anticce abdominis apicem attiugcntes,maris latissimee 

 tympano cinereo ht/alino ; alee posticce abdomen longe superantes. 



Male and female. Black, stout, smooth, shining. Head ferruginous 

 about the mouth. Eyes piceous. Ocelli luteous. Antenna? as long as the 

 body. Prothorax with a slight transverse furrow and a slight transverse 

 impression. Abdomen piceous above. Cerci ferruginous, shorter than the 

 abdomen. Oviduct of the female a little longer than the abdomen. Legs 

 stout; hind femora indistinctly striated; hind tibiae with four stout spines 

 on each side. Fore wings extending to the tip of the abdomen, very 

 broad and with a cinereous hyaline tympanum in the male. Hind wings 

 pellucid, extending much beyond the tip of the abdomen ; veins white ; costa 

 and the subcostal streak black. Length of the body 8 10| lines. 



a. Sierra Leone. Presented by the Rev. D. F. Morgan. 



b. Sierra Leone. From Mr. Foxcroft's collection. 



c. Congo. Presented by Sir. J. Richardson. 



d. Fan tec. 



e. Abyssinia. Presented by J. C. Bow ring, Esq. 



50. GRYLLUS POSTICUS. 



Fo2in. Ferrugineus, subopacus ; caput nitens, antice lutewn piceo scxno- 

 tatum, plaga fronlali nigricante ; palpi testacei ; oviductus corpore 

 vix brevior ; pedes rufi,femoribus posticis substrigalis ; alee anticce 

 abdominis apicem atlingentes, striga testncea piceo marginata, spalio 

 subcostali cinereo venis testaceis ; alee posticce abdomen sat superantes. 

 Var. /3. Piceus ; caput nigrum, antice et postice ferrugineum. 

 Var. y. Piceus ; caput antice lividum. 



Female. Ferruginous, slightly shining. Head shining, luteous 

 towards the fore border ; a blackish patch on the front including the luteous 

 ocelli and part of an anterior luteous dot ; fore part with six small piceous 

 marks, four transverse and two longitudinal. Eyes darkly livid. Palpi 

 testaceous. Oviduct nearly as long as the body. * Legs red ; hind femora 

 with slightly marked oblique darker streaks ; hind tibiae with six spines on 

 the outer side and with five on the inner side. Fore wings extending to 

 the tip of the abdomen ; a testaceous streak along the rnediastinal vein, 

 bordered with piceous in front; subcostal space cinereous, with testaceous 

 veins. Hind wings extending somewhat beyond the abdomen. Var. /3. 

 Piceous. Head black, ferruginous along the hind border and in front. 

 Var. y. Piceous. Head in front, eyes and ocelli livid. Cerci shorter than 

 the abdomen. Oviduct as long as the body. Fore wings extending rather 

 beyond the abdomen : a blackish subcostal streak. Hind wings extending 

 a little beyond the fore wings. Length of the body 8 13 lines. 



