1007] 
aiRAULT — HOSTS OF IXSECT EGO-PARASITES 
2‘t 
family Ceraphroninac <.Aphtniorjmnx oiily>. Outside of these two superfaniilies, 
eertain of the Evaiiiidae (namely ICrania) of the su|)erfaiTiily lelmenmonoidea an" 
also egg-])arasites of the true insects, the cockroaches. 
The most |)romincnt and common of the genera of ('gg-parasites are nndonhtedly 
TrirJiof/mmvui and Telriiomii", and of the species, Trirliixjrdmma prOioxa Riley 
is foremost, attacking no less than eleven or more hosts. Tvlnumux (jraptae I toward 
follows as the second most common species, attacking six hosts. 
(>ther genera and donhtle.ss families in the Chalcidoidea and I’roctotrypoidea 
will he found to he parasitic on the eggs of American insects when we hccome more 
advanced in onr knowledge of them. In Hawaii, for e.xample, such has heen found 
to he the case (Perkins, 190.'), p. 200 ft <il\ 1900), and also in Europe in a few cases. 
The foregoing enumeration of ])arasitic families and genera, therefore, cannot he 
said to he restrictive. 
'^Phe known hosts of egg-parasites in continental North and South .\merica 
com])rise the following orders as listed: Coleoptera, Diptera, Ilemiptera, Ilymen- 
o])tera, Lepidoptera, Ncnro])tera, and (Irthoptera, and in addition the ( Idonata. 
The families attacked in each order, where numerous, are widely .se|)arated, and 
in this rcsi)ect the parasites seem to have very little choice. In order of being 
mo.st attacked, in numher of species, the Lcpido])tera are first, then the Orthop- 
tera, Hemi|)tera, Coleoptera and Ilymenoptera. 
Hosts and their parasites. 
Colfopicra. 
Parasite. 
Poropoea specie.s 
Proxacantha carahorum 
Riley 
Annphes cnnotrachdi Gi- 
rault 
lirachixta fidcae .\shincad 
Eidiohia flavipes Ashiiiead 
Trichogra m ma ndonlotar 
Howard 
? Anidophngux faxciatux 
Ashmead 
qurreiperda Scliwarz ? Aradophagux Jaxcifitux 
Ashmead 
Scaritrx xiddcrrancoux Fabricius Proxacantha carahorum 
Riley 
Tarhypterux (Anthnnomux) quad- ? Gunatoccrux anihonomi 
riyibbux Say Girault 
I lo.st 
Aticlahnx bipvxlulalus Fabrieiu.s 
etdaeniux impunctifronx Say 
Conotrartu-lux nenuphar Herl)st 
Fidia nticida Walsh 
Odontota dorxalis Thunlierg 
Pilyopilwrus ronximilis Leconte 
Authority. 
Hopkins, 190.'), p. 132. 
Ashmead. lS93a, pp. ISO. 191, 
4.51. 
fiirault, 1905. Ent. New.s, XVI, 
p. 220. 
Webster. 1.S90. p. 09. 
Slingerland, 1906, p. 93. 
Chittenden, 1902, p. S2. 
Ashmead, 1893a, )). 166. 
Ihdla Torre, 1S9S, p. 512. (’/. 
.Vshmoad 1893a, p. 166. 
Riley it Howard, 1891, p. 124. 
Girault, 1905, Ent. News, XVI, 
p. 289. 
