MORGAN HEBARD 93 



lateral carinae, its surface convex elsewhere, with a strong medic- 

 longitudinal ventral carina. This entire segment disappears in 

 the adult, the supra-anal plate in both sexes being small, trigono- 

 shield-shaped, with apex bluntly rounded. It was the purely 

 superficial, but quite apparent, resemblance of this appendage to 

 the subgenital plate of males of Radinotatum brevipenne (Thomas) 

 which misled Bruner into recording immatures of the present 

 insect as that species. 



Measurements {in millitncters) 



Carr Canyon, Hua- 

 chuca Mt.s. , Ariaona . 



Fort Grant, Ariaona . . . 



Fort Grant, Ari.aona. . . 



Black Dike Prospect, 



Ariama 28.8 4.3 18 24 3 12 



Baboquivari Moun- 

 tains, Ariaona 29 4.5 1.9 25.3 12.8 



9 

 Fort Grant, Ariaona... .36.2 5.5 2.1 30 14.8 



Fort Grant, Ariaona .. . 38.5 5.3 2.1 30.8 14.8 



The largest female before us, from Tonala, Chiapas, Mexico, measures: 

 length of body, 37 (shrivelled); length of pronotum, .5.9; caudal width of pro- 

 notal disk, 2.2; length of tegmen, 34; length of caudal femur, 16.8 mm. 



The color phases are as follows. A. All brown. B. Brown, 

 with dorsal surface of head, pronotum and tegmina green. C. All 

 green, with a post-ocular band of brown, continued along the 

 dorsal margin of the pronotal lateral lobes and expanding to 

 different degrees on the lateral surfaces of the tegmina. ^'ari- 

 ation from brown to yellowish-brown is also shown. 



The habits of this species have never been discussed. Rehn 

 secured a single specimen in the Sierritas above Black Dike 

 Prospect, Arizona, while beating "bear grass" (Xolhta sp.). 

 No further specimens were found during three hours' work. 



In addition to twenty-five Mexican individuals, seven from the 

 United States are before us, all of the latter having been re- 

 corded previously and belonging to the Philadelphia Collec- 

 tions, except the following male. 



Seven miles above Black Dike Prospect, Sierritas Mountains, Pima County, 

 Arizona, 4700 to 4825 feet, VII, 28, 1916, (J. A. G. Rehn), 1 cf , [A. M. N. H.l. 



TRANS. .\M. ENT. SOC, XLVIII. 



