10 
513. G. Mesidia Foerst. 
1. M. pallida Kirch. Im Grase im Prater, Augarten, and bei Klosteraeuburg. 
546. G. Coccobius Rtzb. (under Encyrtime). 
1. annulicornis Rt:b. Preussen. 
2. circumscriptus Rtzb. Preussen. In Coccus pini. 
3. fliivus Nees. Preussen; (Pallidas Rtzb.,) aus Coccus tilla \\\u\ accris. Wien. 
4. luteus -Rte&. Preussen. In Coccus pini. 
5. notatus A'/:/>. Preussen. In ^Ispidiotus rosce. Wien. 
The Ratzeburgian species of CoccobiuSj live in number, are catalogued 
with the EncyrtinaB. I have examined the original descriptions of 
nearly all of the species listed above, but with little satisfaction. They 
are invariably insufficient bo establish specific identities, although their 
generic affinities can in many cases be told. Thus, of Kirchner's list, 
dbdominalis Dalman (not Nees), tibialis, asyehis, basalts Westwood (not 
Walker), flavus and proclia belong to Aphelinus; while argiope, moeria, 
inaron. U/cimnia, and idasus belong apparently to Coccophagus. Flari- 
cornis and varipes are probably species of A pin linns. Of llatzeburg's 
species, described under Coccobius, notatus is a Coccophagus, andpallidus 
is an Aphelinus. The position of the remaining three is doubtful, but 
1 should not be surprised if it were eventually ascertained that -annuli- 
cornis belongs to Physcus, circumscriptus to Prospalta, and luteus to 
Ablerus. Mr. Ashmead possesses a, pair of specimens from Germany 
labeled in Foerster's handwriting "Coccophagus xanthostictus R-atz.," 
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. 1 It is possible that Aphelinus mail (Halde- 
man), the widespread American parasite of AphididsB, will prove to be 
a synonym of A. basalis Westwood, while Coccophagus lecanii (Fitch) 
may prove a synonym of ('. scutellaris (Dalman), and C. tmmaculatus 
Howard may prove identical with C. insidiator (Dalrn.). The question 
can not be satisfactorily settled by existing descriptions. To give an 
idea of the difficulty surrounding this question we give Dal man's descrip- 
tion of C. scutellaris: "Niger, scutelli macula nava, antennis fuscis; 
'Since the above was written I have received a small sending of parasites of 
Coccida; from Prof. A Herlese, Scnola Realc di Portici, Italy, in which 1 have been 
a hie to recognize three of the species treated in this revision. These are Aspidio- 
tiphagus citrinus (Craw), which Professor Berlese has reared from a species of 
Alj/tilaspis on olive, from an Aspidioius on Acacia longifolia, and from Diaspis rosa 1 on 
Ribes rubvum ; Aphelinus fuscipennis How., from an Aspidiotus on Acacia longifolia, 
and Prospalta aurantii (How.), from Aspidioius ederce, and from Leucaspis pinifolicb 
on Pinus eanaviensis. 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. 
