BIOTIC ASSOCIATIONS OF COCKROACHES — ROTH & WILLIS 281 



Family TROGLODYTIDAE 

 Troglodytes aedon Vieillot 



Common name. — House wren. 



Natural prey. — Cockroaches, U.S.A. (Greenewalt and Jones, 

 1955) : The wren carried three small cockroaches to nestlings; the 

 records probably represent incidental captures. 



Troglodytes audax Tschudi 



Common name. — Cucarachero. 



Natural prey. — Cockroach (called Chilicabra by Peruvian Indians), 

 Peru (Tschudi, 1847) : The bird seized the cockroach and bit ofif its 

 head then devoured the body discarding the wings. 



Family LANIIDAE 



Lanius ludovicianus Linnaeus 



Common name. — Loggerhead shrike. 



Experimental prey. — Pycnoscelus surinamensis , U.S.A., Florida 

 (Sanders, 1928). 



Family STURNIDAE 

 Acridotheres tristis Bonnaterre and Vieillot 



Common name. — Myna, mynah. 



Natural prey. — Cockroaches, Hawaii, Lanai (Illingworth, 1928) : 

 lUingworth reported that he had never seen as many cockroaches any- 

 where else in Hawaii. The birds followed tractors that were destroy- 

 ing cactus and kept close to the chain that turned over the stumps. 

 The following species were collected : Allacta smiilis, Blattella ger- 

 manica, Cutilia soror, Diploptera punctata, Leucophaea maderae, Peri- 

 planeta americana, Pcriplaneta australasiae , Pycnoscelus surinamensis. 

 Illingworth did not state whether the birds ate all these species in- 

 discriminately. 



Pycnoscelus surinamensis, Hawaii (Williams et al., 1931 ; Schwabe, 

 1950b) : In many places this species forms an important fledgling 

 food for mynah birds. 



Family VIREONIDAE 



Vireo latimeri Baird 



Common name. — Latimer's vireo. 



Natural prey. — Periplaneta sp., Puerto Rico (Wetmore, 1916) : 

 Cockroaches were found in one of 43 stomachs examined. 



