June, 1915] HeBARD: AMERICAN SpECIES OF MiOGRYLLUS. Ill 



In this species the median oceUus is usually strongly defined by a 

 pale yellowish spot, in convolutus no such marking surrounds this 

 organ. The limbs are slightly paler than the chestnut general col- 

 oration of the body, but are speckled and suffused with that shade. 

 In numerous specimens the ventro-caudal portion of the dorsum of 

 the pronotum is marked with pale yellowish brown, which color is 

 continued on the tegmina occupying the intermediate channel. In 

 one male before us the right tegmen has but one instead of the 

 normal two transverse veins. All of the specimens in the present 

 series are macropterous. 



This species is known only from the material here studied. 



Specimens Examined. — 23; 7 males and 16 females. 



Central America (Rev. T. Heyde), 2 5 [Hebard Cln. ; type no. 



397] • 



Tabernilla, Canal Zone, Panama, V, i to VI, 16, 1907 (A. Busk), 



7j^, 13$ [U. S. N. M.]. 



Georgetown, British Guiana, i 5 C^"^- N. S. P.]. 



Miogryllus lineatus (Scudder). 



i<S76. Gryllodcs lineatus Scudder, Ann. Rept. Chief of Engineers, 1876, 

 part III, ]). 499. [Between Virgin River and Fort Mojave, Arizona.] 

 (Micropterous $•) 



1896. N[eniobiits'\ pictns Scudder, Psyche, VII, p. 434. [Colorado, New 

 Mexico.] (Macropterous 5-) 



1901. Miogryllus capitatus Scudder, Psyche, IX, p. 257. [Gulf Coast of 

 Texas.] (Micropterous J', 2 juv.) 

 - 1901. Miogryllus sicarius Scudder, Psyche, IX, p. 258. [San Diego, Cali- 

 fornia.] (Macropterous $.) 



After study of the types of all of the above names and also the 

 series listed below, we are able to place the last three without ques- 

 tion in the present synonymy. The type of lineatus is a rather 

 dark female with short tegmina and concealed, greatly aborted wings ; 

 pictns is based on a pale macropterous female; capitatus on a 

 male with truncate tegmina and concealed, greatly aborted wings, 

 particularly aberrant in showing a strongly megacephalic condition, 

 which development is discussed below; while sicarius is a female, 

 exactly like the type of pictus, with which specimen it was evidently 

 not compared, this probably due to the fact that pictus had been de- 

 scribed as a member of Ncmobius in a paper in which Scudder evi- 



