4()2 rROCEEDIXG.'S OF THE XATIOXAL MUSEUM. v^.l. xxviii. 



this species in the genus Lahhi^ but its close relationship to Spongo- 

 ])h<>ra b?'itnneij)en}iis seems to justify its being- placed as congeneric with 

 that species. While normally with fifteen segments in the antenna?, 

 many specimens of S. hrninir!pe)iuis^ even with antenna? seemingly 

 perfect, have but fourteen. But in most foi'ticulids the structure of 

 the antennii? is such as to make it very difficult to tell if all the seg- 

 ments are present or not. The number of antennal segments in our 

 species of Spongoj^/iora^ and probably of some other genera, may be 

 found to vary somewhat. 



Apk'idenata, as a whole, ditfers from its ally in ))eiiig a little smaller, 

 the female seemingly less elongate as a rule, and generally with the 

 wings more unicolorous. A ligure of the apex of the abdomen of a 

 male hnmneipennu^ showing the pygidium and forceps, is given for 

 comparison. 



ISCHNOPTERA UHLERIANA Saussure. 



One male. Patagonia ^Mountains, May 15; one male. Huachuca 

 Mountains. August 22. 



BLATTA ORIENTALIS Linnaeus. 



One male, Nogales, June 20. 



The males of this species exhibit ('onsideral)le variation in the length 

 of the elytra, some having them but twice as long as the pronotum 

 while in others they are two and one-half times as long. 



PERIPLANETA AMERICANA Linnaeus. 



One immature female, Nogales, June 14. Also an adult male from 

 Florence, Arizona, collected by Beiderman, and an adult female from 

 Yuma, Arizona, taken by H. Brown. 



This n3aiiph from Nogales is colored more like 1\ auatrahisin'^ and 

 would have l)een considered as that species but for the lack of records 

 of this species from Arizona. 



HOMCEOGAMIA APACHA Saussure. 



Five males. Nogales, June 17. July 'lo\ three males, Huachuca 

 Mountains, August 20 to 28. 



The U. 8. National Museiun contains specimens of apa.cJi<i from Cal- 

 ifornia and Arizona, and of //. erratfca from Arizona. Texas, Colo- 

 rado and New Mexico. Color and interocular .space are not always 

 correlated in these two species. Thus their distinctness is not so strik- 

 ing as was once thought. 



A male taken at Phoenix, Arizona, on June it, 11^*04, by K. E. 

 Kunze is wholly infuscated, except for a pale emargination of the 

 f i'ont and sides of the pronotum and the anterior third of the costal 



