June, igis.] Hebard : Americax Species OF Miogryllus. 115 



So much variation is to be found in verticalis, that this insect 

 may prove to be a mere aberration, but, in the absence of material 

 agreeing with the description in several of the features mentioned 

 above, we await further information. 



Miogryllus verticalis (Serville). 



1839. Gryllus verticalis Serville, Hist. Nat. Ins., Orth., p. 343. [Cayenne, 



French Guiana.] (Macropterous $.) 

 1874. Gryllus la platae Saussure, Miss. Sci. Mex., Rech. ZooL, VI, p. 408. 



[Buenos Aires, Argentina.] (Micropterous c? and $.) 

 1877. Gryillodesl guyennensis Saussure, Melang. Orthopt., II, p. 384. 



[Surinam.] (Micropterous $.) 

 1877. Gryllus saussurei Scudder, Proc. Bost. Soc. Nat. Hist., XIX, p. 35. 



[Georgia.] (Micropterous ^^.) 

 1902. Miogryllus oklahomae Caudell, Trans. Am. Ent. Soc, XXVIII, p. 



90. [Perkins, Oklahoma.] (Micropterous (^.) 



Although Serville's description of verticalis is very brief and 

 based on a single female, then in poor condition, there is no doubt 

 that the specimen described represents the rare macropterous condi- 

 tion of the present species. No other species of American Gryllidie 

 agrees with Serville's measurements; body about i6 mm., wings sur- 

 passing tegmina by about 12 mm. This great wing length is found in 

 the three macropterous specimens of the species before us and pre- 

 cludes the possibility of the name being a synonym of Gryllus as- 

 similis as placed by Saussure in 1874.^^ In other features of Ser- 

 ville's description there are no discrepancies with our material. 



Saussure's laplata: is based upon micropterous material of both 

 sexes of this species. After examination of the types of Scudder's 

 saussurei and Caudell's oklahomcc and large series of the species be- 

 fore us, there remains no doubt of the synonymy of these names. 

 The former is based on material inseparable from the synony- 

 mous laplatcc in every respect except size, while the latter represents 

 only the maximum degree of coloration found in this plastic species. 

 Saussure's guyennensis is based solely on a female with shorter ovi- 

 positor (9.7 mm. in length) than that of the female type of the syn- 

 onymous laplatcc (13 mm. in length), and tegmina showing nearly the 

 maximum of abbreviation and in consequence not meeting dorsad. 



11 Miss. Sci. Mex., Rech. Zool., VI, p. 397. 



