BIOTIC ASSOCIATIONS OF COCKROACHES — ROTH & WILLIS TTJ 

 DESERT COCKROACHES 



Agis orientalis 



Northern Kenya. — In desert-grass and thorn-bush country : scat- 

 tered, dry tufts of grasses interspersed among acacia bush and scat- 

 tered trees (Kevan and Chopard, 1954). 



Arenivaga apacha 



U.S.A. — Inhabits desert regions of the Southwest, has been found 

 in nests of wood rats (Hebard, 1917). 



Arenivaga bolliana 



U.S.A. — On gravelly hillocks, in scattered scrub, and in the nests 

 of wood rats in Texas. It is a desert inhabitant in the Southwest 

 (Hebard, 191 7; 1943a). 



Arenivaga erratica 



U.S.A. — Inhabits desert regions of the Southwest (Hebard, 1917). 

 In Arizona it has been found in rodent burrows in the desert (Vorhies 

 and Taylor, 1922 ; Ball et al., 1942). 



Arenivaga roseni 



Turkmen S.S.R. — Predominantly found in burrows in sand; all 

 stages "swim" in sand and loess dust (Vlasov and Miram, 1937). 



Blattella vaga 



Arizona. — Found in small numbers on the dry desert (Flock, 

 1941a). 



Compsodes schwarzi 



U.S.A. — Occurs in the Southwest where it is confined to the desert 

 and semidesert mountainous areas, rarely being found on the desert 

 floor (Hebard, 1917). Taken in an ant nest in mountains of Ari- 

 zona (Ball et al., 1942). 



Cyrtotria capucina 



Eastern Africa. — "Commonly met with under debris, the apterous 

 females being most frequent." Thorn-bush country (Kevan and 

 Chopard, 1954). 



Derocalymma lampyrina 



Northern Kenya. — Very abundant; both sexes under debris in 

 desert-grass and thorn-bush country (Kevan and Chopard, 1954). 



