280 
Psyche 
[September 
hosts deserve mention. Our records for Polistes fuscatus 
var. pallipes, for instance, include hosts reported under the 
names P. fuscatus, P. metricus, P. instabilis, and P. varia- 
tus; and parasites described as Xenos peckii, X. bowditchi, 
X. wheeleri, and X. bruesi. Polistes fuscatus var. rubigi- 
nosus likewise becomes the host of Xenos nigrescens, X. 
rubiginosi , X. pecosensis, and X. maximus. The parasites 
become similarly scattered among the host species. Until 
this interesting problem has been seriously investigated it 
should not be assumed that the hosts and their parasites 
are related, species to species, and genus to genus ; and new 
species described in the Strepsiptera should stand on their 
own morphological characters, not on the identity of their 
hosts. 
References 
Brethes, J. 1923 Primera contribucion para el conocimiento 
de los “Strepsiptera” Argentinos. Rev. Fac. Agron. 
La Plata 15 (1) : 41-56, 4 pi. 
Brues, C. T. 1903 A contribution to our knowledge of the 
Stylopidse. Zool. Jahrb., Abt. Anat. 18 (2) : 241-270, 2 
pi., 3 fig. 
Brues, C. T. 1905 Notes on the life history of the Stylopidse. 
Biol. Bull. 8 (5) : 290-295, 2 fig. 
Brues, C. T. 1924 Triungulin larvae from the Williams Ga- 
lapagos Expedition. Zoologica 5 (11) : 125-136, 5 fig. 
du Buysson, R. 1903 Note pour servir a l’histoire des Strep- 
sipteres. Bull. Soc. Ent. France 1903: 174-175. 
du Buysson, R. 1905 Monographie des guepes ou Vespa 
(Parts 2 and 3). Ann. Soc. Ent. France 73: 485-556, 
565-634, 11 pi. 
du Buysson, R. 1905a Monographie des Vespides du genre 
Nectarina. Ann. Soc. Ent. France 74: 537-566, 6 pi. 
du Buysson, R. 1909 Monographie des Vespides du genre 
Belonogaster. Ann. Soc. Ent. France 78: 199-270, 6 pi. 
