342 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH SER. 
the apex of the subgenital plate and almost touch, thus enclos- 
ing an area roughly elongate-oval in shape”. 
28. Gryllus assimilis (Fabricius ) 
1775. [Acheta] assimilis Fabricius, Syst. Ent., p. 280. 
[ Jamaica. | 
1893. Gryllus galapageius Scudder, Bull, Mus. Comp. Zool., 
DOCVe p22 ple ie ties Se | o> ibenarlemistand: sitive Cliarles 
and Chatham islands; and all Galapagos Islands. | 
The above synonymy was indicated by Rehn and Hebard at 
the time the genus, as found in America, was revised”. 
San Tomas, Albemarle Island, 1200 feet, October 30, 1905, 
2 juv. ¢ ; Indefatigable Island, November 11 to 22, 1905, 1 juv. 
© > (Chendngian lisikiercl, Ocioner, IOS, lath. O50 jun. © 3 Cor 
morant Bay, Charles Island, October, 1905, 1 9, 1 juv. ¢ ; and 
Inlooal Iislaiacl, Iie, ISOS, 2 jin, @. I jew, 2. 
28 In dissimilis the titillator is on each side produced caudad in a straight, slenderly 
conical process, about twice as long as its basal width. The inner margins of these 
processes, and the distal margin of the titillator intervening approximately form a 
semicircle. ° 
29 Proc. Acad. Nat. Sci. Phila., 1915, p. 296, (1915). 
