THE SPECIES OF GRVLLUS ON THE PACIFIC COAST. 



RV SAMUEL H. SCUDDER, CAMBRIDGE, MASS. 



The basis of this study is the collec- lection. I have seun no specimens from 



tion of crickets made a few summers ago Alaska. 



by Mr. A. P. Morse, from Victoria, B. The species found here are four in 



C, to San Diego, Cal. I have used number and may be separated by the 



also the material previously in my col- following table. 



Tabic of the spciies of Grvlliis found on tlic Pacific Coast , north of Mexico. 



a', (jeneral effect of coloring fuscous or black. Lower margin ot lateral lobes of 

 pronotum arcuate, a little oblique ; branches of mediastinal vein of tegmina gener- 

 ally three, sometimes four in number; tympanum of outer face of fore tibiae elon- 

 gate, much more than twice as long as broad, of inner face long ovate or elongate; 

 upper inner calcar of hind tibiae distinctly, sometimes much, shorter than the inter- 

 mediate calcar. 



/''. Tegmina very dark testaceous, fully as long as the body, the wings, except 

 rarely, much longer ; pronotum nearly twice as broad as long, the hind margin 

 faintly angulate ; upper inner calcar of hind tibiae scarcely more than half as 

 long as intermediate calcar ........ intc::;er. 



h? Tegmina black, very rarely as long as the body, the wings not surpassing 

 them except in such cases ; pronotum not more than half as broad again as long, 

 the hind margin straight ; upper inner calcar of hind tibiae fully three fourths 

 as long as intermediate calcar. 



c^. Somewhat larger. Tegmina generally shorter than the body, especially in 

 the female, with light colored humeral stripe, especially distinct in the female, 

 the apical area beyond the male tambourine almost as long as its basal breadth; 

 pronotum more villous ; femora considerably stouter: generally six spines on 

 inner side of hind tibiae. ........ voca/is. 



