BIOTIC ASSOCIATIONS OF COCKROACHES — ROTH & WILLIS 22/ 



Kirkaldy suspected that it fed on small blattids and that Dr. Perkins 

 saw it feeding on a dead cockroach. 



Family REDUVIIDAE 

 Spiniger domesticus Pinto 



Natural prey. — Periplaneta americana, Brazil, Matto Grosso 

 (Pinto, 1927, 1927a) : This bug preys principally on cockroaches and 

 was observed infesting the walls of dwellings where it preyed on P. 

 americana. 



Triatoma arthurneivai Lent and Martins 



Natural prey. — Monastria sp., Brazil, Minas Gerais (Martins, 

 1941) : This bug probably feeds on cockroaches of this genus, as well 

 as on rodents. 



Undetermined reduviids 



Natural prey. — Arenivaga roseni and Polyphaga saussurei, Turk- 

 men S.S.R. (Vlasov and Miram, 1937) : These desert cockroaches 

 are found in burrows of rodents and desert turtles around Ashkhabad. 

 Reduviids are their main enemies. Vlasov (1933) found nymphs of 

 Reduvms christophi Jak. and R. fedtschenkianus Osch. in similar 

 burrows in this same area, although he did not specifically cite them as 

 enemies of the desert cockroaches. 



Family NEPIDAE 

 Kanatra sp. 

 Experimental prey. — Cockroaches, U.S.A. (Hoffman, 1924). 



Order NEUROPTERA 

 Family ASCALAPHIDAE 

 Undetermined larva 

 Experimental prey. — Blattella germanica, Kenya Colony (So- 

 meren, 1924). 



Order DIPTERA 



From the few observations that have come to our attention, it seems 

 that flies are comparatively rare parasites in cockroaches. 



Family PHORIDAE 

 Megaselia sp. 

 Host. — Eggs of Parcoblatta sp., Ohio (Edmunds, 1952a). 



