FUNGI CULTIVATED BY INSECTS 



453 



inosus, and Hormisciinn pithy ophilum by Lashis umbratus. The 

 fungus cultivated by Atta cephalotes was identified by Weber 

 (1938) as Lentinus atticohis. Spores of several unidentified species 

 from infrabuccal pouches are represented in the illustrations that 

 accompany the report by Bailey (1920). 



Fig. 75. Fungi used as food by insects. A. Globular hyphal tips (bromatia) 

 of a fungus cultivated by ants. (Adapted from Wheeler.) B. Aloniliod 

 fungus in artificial culture. The ambrosia beetle, Trypodendron betnlae, 

 uses this fungus. (Adapted from Leach, Hodson, Christiansen, and Chilton.) 



Some workers have maintained that the associated fungus oc- 

 curs in "pure culture," a claim which is denied by Goetsch and 

 Stoppel [Uphof (1942), p. 584]. These investigators isolated the 

 following fungi from the nests of Atta sexdens: Hypomyces ipo- 

 moeae, Fusarium oxysporinn, F. angustum, F. equiseti, Verticil- 

 lium candidum, and Clonostachys araucariae; from nests of Acro- 

 myrex they isolated Mucor racemosus, Actinomiicor re pens, 

 Moniliopsis aderholdii, Rhizopns nigricans, Trichoderma sp., and 

 Penicillium sp. 



