10 
513. G. Mesidia Foerst. 
1. M. pallida Kirch. Im Grase im Prater, Augarten, und bei Klosterneuburg. 
a x * * * * * 
546. G. Coccobius Rtzb. (under Encyrtinz). 
1. annulicornis Ritz). Preussen. 
2. circumscriptus Rtzb. Preussen. In Coccus pini. 
3. flavus Nees. Preussen; (Pallidus Rtzb.,) aus Coccus tilie und aceris. Wien. 
4, Inteus Rtzb. Preussen. In Coceus pini. 
or 
notatus Rtzb. Preussen. In Aspidiotus rose. Wien. 
The Ratzeburgian species of Coccobius, five in number, are catalogued 
with the Eneyrtine. I have examined the original descriptions of 
nearly all of the species listed above, but with little satisfaction. They 
are invariably insufficient to establish specific identities, although their 
generic affinities can in many cases be told. Thus, of Kirchner’s list, 
abdominalis Dalman (not Nees), tibialis, asychis, basalis Westwood (not 
Walker), flavus and proclia belong to Aphelinus; while argiope, moeria, 
inaron, lycimnia, and ideus belong apparently to Coccophagus. Flavi- 
cornis and varipes are probably species of Aphelinus. Of Ratzeburg’s 
species, described under Coccobius, notatus is a Coccophagus, and pallidus 
is an Aphelinus. The position of the remaining three is doubtful, but 
I should not be surprised if it were eventually ascertained that annuli- 
cornis belongs to Physcus, circumsecriptus to Prospalta, and luteus to 
Ablerus. Mr. Ashmead possesses a pair of specimens from Germany 
labeled in Foerster’s handwriting ‘“‘OCoccophagus. wanthostictus Ratz.,” 
which, as a matter of course, are correctly placed generically, and 
which differ specifically from any of our North American species, 
resembling most closely C. flavifrons Howard, from California. 
As to possible identities between European and American forms, we 
can only guess at present.! It is possible that Aphelinus mali (Halde- 
man), the widespread American parasite of Aphididae, will prove to be 
asynonym of A. basalis Westwood, while Coccophagus lecanii (Fitch) 
may prove a synonym of C. scutellaris (Dalman), and C. immaculatus 
Howard may prove identical with C. insidiator (Dalm.). The question 
can not be satisfactorily settled by existing descriptions. ‘To give an 
idea of the difficulty surrounding this question we give Dalman’s descrip- 
tion of C. seutellaris: “ Niger, scutelli macula flava, antennis fuscis; 
'Since the above was written I have received a small sending of parasites of 
Coccide from Prof. A. Berlese, Scuola Reale di Portici, Italy, in which I have been 
able to recognize three of the species treated in this revision. These are Aspidio- 
liphagus citrinus (Craw), which Professor Berlese has reared from a species of 
Mytilaspis on olive, from an Aspidiotus on Acacia longifolia, and trom Diaspis rosa on 
Ribes rubrum; Aphelinus fuscipennis How., from an Aspidiotus on Acacia longifolia, 
and Prospalta aurantii (How.), from Aspidiotus ederw, and from Leucaspis pinifoliw 
on Pinus canariensis. It is impossible to say whether these three species are of 
European or American origin. If European, as is quite likely, I am totally unable 
to identify them with published European descriptions. For the present, therefore, 
the American names must hold. 
