No. 637] ANIHER0P1IA(,I s <)( 1IUA( Krs MEL^. 



191 



least without liaving: first acquired a nest ' ' aura. ' ' I believe that 

 Antherophagus often, if not always, forces the bee to carry it 

 simply in order to find tlie nest, and not to acquire a nest "aura,'' 

 such as all the bees of each and every colony posse&s. If 

 Antherophagus had habits similar to those of the inquiline-bee 

 Psithyrus, there would be an advantage in having a nest "aura." 

 Seott (1920) says that 



Presumably these [A. pallens-] beetles are double-brooded, Tvith a 

 short summer generation interveniner between the enicreeiiee of the 

 adults in May and the assumption of the resting condition by the larvje 



I have taken adults of A. ochraceus by sweeping flowers on 

 May 7 and 23, 1917. The insect collections of the Illinois State 

 Natural History- Survey contain adults taken on July 19, 23 

 and 30, 1891, and August 15, 1893. Blatchley (1910) mentions 

 the species as occurring on flowers, June 24 to September 21. 

 As previously mentioned I took one adult in a bumblebee nest on 

 July 26 and eighteen more on August 12. Tlie adults taken on 

 May 7 and 23 certainly represent the hibernating brood. Those 

 found both out of doors and also in a nest on July 19-30, are in 

 all probability the adults of the first brood or summer genera- 

 tion. Those taken on August 12-15, may represent a true second 

 summer generation, but more than likely belong to the same 

 brood of July 19-30. Scott found that A. pallens hibernated as 

 larvfB, pupating in early summer. Some of the larva* presumably 

 those of Aiiflicropliagns which I took on October 3, wlien ex- 

 amined on XovemlxT 11, 1920, had constructed cells in the earth 

 on the bottom of ilii^ rearing jar; thus indicating that they 

 hibernated as larva'. Summarizing these records: .1. ochmcttis 

 is probably double-brooded, hibernating as larvfe in cells in the 

 soil or material about or under the bumblebee nest. 



Theodore H. Frisox 



University of Illinois 



BIBLIOGRAPHY 



Blatchley, W. S. 



1910. An Illustrated Descriptive Catalogue of the Coleoptera or 

 Beetles (Exclusive of the Rhynchophora) Known to Occur in 

 Indiana. Nature Publ. Co., Indianapolis, Indiana. 

 Donisthorpe, H. 



1920. The Phoresy of Antherophagus. Ent. Eecord, Yol. 32, Xo. 10, 

 pp. 181-187. 



