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Bulletin Wisconsin Natural History Society [Vol. 11, No. 4 
As explained in the opening paragraph just quoted, Foerster 
based his arrangement of the genera of the family on the Conspectus 
of Haliday (Walker, 1851) the main divisions of the family being 
the same, the arrangement of the distal ciliation of the fore wings 
and the latter’s venation being the characters upon which the divi- 
sion is based. Three new genera are added to the family, two of 
which were improperly and inadequately described, namely 
Lathromeris and Asynacta; the third genus — Centrobia — was based 
on the species Trichogramma walkeri Foerster, previously de- 
scribed in detail (Foerster, 1851). In the discussions of the genera 
immediately following the Uebersicht, Foerster announces the 
synonomy of Ophioneurus Ratzeburg with Pgropoea Foerster, hold- 
ing Ophioneurus simplex Ratzeburg the same as Poropoea stoll- 
werckii and removing 0. signatus to Poropoea; as explained else- 
where the latter species is retained now as the type of Ophioneurus. 
In regard to the next genus discussed — Trichogramma West- 
wood — Foerster bases his conception of the antennal structures 
on Walker’s (Haliday, 1842) figure and consequently is misled 
into considering them to be 8-jointed. To be consistent we must 
accept Westwood (1833-1879) as final in this respect as he both 
precedes and follows both Walker and Foerster. Foerster remarks 
concerning the genus: “Ich besitze von dieser seltenen Gattung 
# drei Arten, aber von jeder Art nur eine Spezies, an welcher die 
Fiihler stark eingeschrumpft waren, so dass sie sich zu einer genauen 
Untersuchung, ohne das ganze Individuum zu zerstoren, wenig 
eigneten, deshalb habe ich mich hier in Betreff der Angabe der 
Fiihlerglieder auf die Gattungsdiagnose Westwood’s und die 
Abbildung in dem Entomologist beschranken mussen. Wenn die 
Flihlergliederzahl richtig angegeben worden ist, woran ich nicht 
zweifle, dann liegt darin schon ein gptes Unterscheidungsmerkmal 
von alien iibrigen Gattungen dieser Familie” (p. 88). This quota- 
tion and wdiat immediately precedes it shows clearly that Foerster 
based his conception of Trichogramma largely on Walker and 
Haliday and therefore was misled concerning it. His remarks 
have much significance. 
In the following paragraphs of pages 88 and 89 the other genera 
are discussed in the order in which they occur in the Uebersicht. 
The discussions are wholly concerned with pointing out the differ- 
entiating characters of the several genera and are quoted in full 
in their proper places. Chaetostricha Haliday is emended to Chae- 
