292 
About Centrobia odonatae Ashmead, bread from eggs 
of Lestes sp. Lake’ Forest, HI UW: S:VAy by Professor 
James G. Needham I do not venture an opinion. If I am 
to judge from Ashmeads description in Ent. News Philad. 
XI. 1900 p. 616 it cannot be doubted that this species 
in no way can be reckoned to belong to the genus Cen- 
trobia Forster. The antenne is said to have only 6 joints 
and not to be annulated and the long ovipositor is not 
mentioned. But Girault says in: Synonymic and descrip- 
tive notes on the Chalcidoid Family Trichogrammatidae 
Trans. Amer. Ent. Soc. Vol XXXVII, 1911 p. 75 that 
he has examined the type specimens in U. S. National 
Museum and he amplifies Ashmeads description calling 
attention — among others — to the long ovipositor. 
But he says furthermore: „The specimens were some- 
what shrivelled“, and I must therefore suppose that he 
has been quite unable to form any opinion as to what 
the antenne really looks like. He certainly says (p. 75): 
ete Sie funicle 1. jointed, not able to see the other 
joints“. Now in my opinion it is one of the most diffi- 
cult matters in any Trichogrammatoid antenne to see 
just the two-jointed funicle by our European Centrobia 
and I therefore take it as by no means excluded that by 
a more thorough investigation f. inst. if the specimens, 
which are now tag-mounted, were put in xylol-balsam, 
Centrobia odonatae Ashmead would prove to belong to 
the genus Centrobia Forster. 
Ophioneurus Ratzeburg. 
1852. Ophioneurus. Ratzeburg. Ichneum. d. Forstins. HI. p. 197. n. 2. 
1856. Poropoea. Förster. Hymen. Stud. II. 1856, p. 88. 
1858. Chaetostricha. Reinhard. Berlin entom. Zeitschr. II. p. 16. n. 45. 
1914. Lathromerella. Girault. Mitt. a. d. Zool. Mus. in Berlin VII. B. 
ES py A 
1915. Chaetostricha. Wolff. Zeitschr. f. Forst- u. Jagdw. XLVII Jahrg. 
8 H. p:°55% 
