214 GENUS ARENIVAGA (bLATTIDAE) 



Sawmill Canyon, Hualapai Mountains, Arizona, IX, 10, 1919, (O. C. 

 Poling), 2 c?, (maximum intensive coloration), [Hebard CIn.]. 



Prescott, Arizona, VIII, 20 and 22, 1917, (O. C. Poling), 2 cf , (maximum 

 intensive coloration), [Hebard Cln.]. 



La Puerta, Imperial County, California, XI, 1911, 1 9, [Cal. Acad. Sci.]. 



Hermosa, California, (J. O. Martin), 1 9, [Hebard Cln.]. 



We would remark that all of the males now referred to apacha 

 are of aljout the same size as the mean in erratica, none being 

 very small, as is normal for gemiali^ and rare, but found to occui', 

 in erratica as well. 



We regret that the figures of the male genitalia given for apacha 

 in our monographic study-^ apply instead to genitalis, the spine 

 only of the dextro -ventral concealed genital plate having been 

 drawn while the adjacent clubbed process was omitted. This 

 spine is always smaller and somewhat curved in apacha, larger 

 and straight in genitalis. 



In the series of males before us, the interocular width varies 

 from three-fifths as wide to fully as wide as that between the 

 ocelli, the majority having the former dimension very slightly 

 less than the latter. 



As we have previously stated, females of apacha agree very 

 closely with those of erratica, the difficulty in determining this 

 sex is now augmented Ijy the fact that we have genitalis as well 

 to consider, the female of which species apparently is yet un- 

 known. All three of these species have large coincident areas of 

 distribution. 



Arenivaga genitalis Caudell (Plato VII, figures 12, 16 and 17) 



1903. Homoeoqamia apacha Rehn, (not of Saussure, 1893), Proc. Acad. 



Nat. Sci. Phila., 1903, p. 188. [cf; Fort Grant, Phoenix and Tempe, 



Arizona.] 

 1903. Uomocodamia apacha Rehn, (not of Saussure, 1893), Ent. News, xiv, 



p. 327 [cf; Florence, Arizona.] 

 1917. Arenivaga apacha Hebard, (in part not Homoeogamia apacha Saussure, 



1893), Mem. Am. Knt. So(r., 2, p. 23(), pi. ix, figs. 14 and 15. [d": Fort 



Crant, Catalina Springs, Lowell Ranger Station in Pima C^^ounty, Sabino 



('anyon in Santa (Catalina Mountains, Phoenix, Temi)e, Florence, Arizona; 



^'ulll;t, California.] 

 J91.S. Areiiiraga t)cnilatis (Caudell, Proc. Ent. Soc. Washington, xx, p. 155. 



[cf; Phoenix, Iligley and Catalina SjH-ings, Arizona.] 



■^' Mem. Am. Ent. Soc, 2, pi. ix, figures 14 and 15, (1917). 



