18 CATALOGUE OF 



20. GHYLLFJS PENSYLVANICCS. 

 Pensjlvanicus, Burnt. Handb. Ent. ii. 734. 



a. N. America. Presented by E. Doubleday, Esq. 

 b e. Indiana. Presented by F. Walker, Esq. 

 /. N. America. Presented by W. Kirby, Esq. 

 g. California. From M. Hartweg's collection. 



The specimen from California is in an early stage of growth, and can- 

 not be certainly assigned to this species. 



21. GRYLLUS PERSONATUS. 

 personatus, Uhler, Proc. Ent. Soc, Phil, ii. 547. 

 Kansas. 



Mexico. 

 22. GRYLLUS SEFTENTRIONALIS. 



Foem. Niger, tomentosus ; caput nitens, linea transversa an gulata later i- 

 bus facieque fulvis ; protfwracis laterafulva ; cerci picei, abdomine 

 duplo breviores ; oviductus abdomine paullo longior ; pedes fulvi, 

 femoribus posticis pallido strigatis; alee anticae luridce, abdominis 

 apicem altingentes, basi carinague pallidioribus ; al<f. posticce abdo- 

 men longe superantes. Mas. Alee posticce abdomen non superuntes. 



Female. Black, tomeutose. Head shining, tomentose along the hind 

 border, tawny about the eyes : a slender transverse angular tawny line 

 between the ocelli ; sides and fore part irregularly tawny. Palpi blackish 

 at tbeir lips. Antenna? piceous, shorter than the body. Prothorax tawny 

 along each side. Cerci piceous, nearly half the length of the abdomen. 

 Oviduct tawny towards the tip, a little longer than the abdomen. Legs 

 tawny ; hind femora with paler oblique parallel streaks on the outer side ; 

 hind tibiae with six spines on the outer side and with four spines on the 

 inner side. Fore wings lurid, extending to the tip of the abdomen, paler 

 at the base and along the mediastinal vein or along the lateral keel ; 

 branches of the mediastinal vein whitish. Hind wings extending much 

 beyond the abdomen. Male. Hind wings not longer than the abdomen. 

 Length of the body 10 lines. 



The colour of the palpi and of the legs distinguishes it from G. 

 capensis. 



fl, b. Oajaca. From M. Salle's collection. 



c, d. St. Domingo. From Mr. Tweedie's collection. 



e. St. Domingo. From Mr. Hearse's collection. 



f.'W. Coast of America. Presented by Capt. Kelleit and Lieut. Wood. 



23. GRYLLUS LURIDUS. 



Fcem. Niger, tomentosus ; caput ni tens , antice rufutn; palpi rufescente 

 picei ; antenna picece, corpore paullo longiores ; prothorax slrigis 

 duabus posticis rufis ; oviductus abdomine multo longior ; alee anticte 

 picece, abdomine breviores, apud costam diaphance testaceo pullido 

 venosa ; alee posticce abdomen longe superantes. 



