268 
Förster states that he received this form from his 
friend Mr. Stollwerck, who had bred it from the eggs of 
Attelabus curculionoides. Förster is however, quite clear 
that this species is the same as the form bred by Ratze- 
burg from the same host. 
Judging from the Present literature this form has not 
been found again since about 1860. Prof. Dr. Max Wolff 
gives a long discription of it in his previously mentioned 
work, pp. 489— 497, but it is only an extract of Förster’s 
and Stollwerck’s works, and he admits that he has tried in 
vain to bred it from the host eggs. Thomson describes 
in his Hymenoptera Scand. V. p. 299 (1878) an insect 
which he calls Ophioneurus grandis. This species is, how- 
ever, no other than Poropoea stollwercki, and not as Max 
Wolff believes, p. 555—556 a species which belonged to 
the genus Chaetostricha (Walker). 
F. Silvestri, Contribuzione alla Conozcenza del Genere 
Poropoea Forster, published in Bollet. del. Laborat. di 
Zool. generale e agraria della R Scuola sup. d’Agric. in 
Portici Vol XI p. 120—135, maintains the right opinion 
of Thomsons species, as he places it as a synonym of 
Poropoea stollwercki Forster. My observations enable me 
to confirm Silvestri’s opinion. Thomson’s collection of Hy- 
menoptera is at the Museum at Lund, and in the autumn 
of 1916 by the courteousness of Dr. Simon Bengtson. 
I had an opportunity to examine the specimen which 
Thomson called Op. grandis, and which proved to be a 
well preserved specimen of P. Sfollwercki. 
Description of the genus: Head slightly broader than 
thorax, and slightly broader than high; eyes large, provi- 
ded with scanty short hairs. Antenne 9 jointed, consi- 
sting of scapus, pedicellus, 2 anelli, and a 5 jointed club, 
which in the female represent 2 funiculi and a 3 jointed 
club. These 5 joints provided with sense organs of which 
the male has the greater quantity. Thorax almost as broad 
as high. Mesoscutum a little longer than Scutellum and 
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