234 
REPORT ON ZOOLOGY, MDCCCXLII : 
of insects. We know, for example, that Papilio Memnon has three dif- 
ferent forms of the female, in colour and form of the wings. And if 
Hartig separates the Inquilini, as genera, from the producers of the 
galls, the like has happened with the two forms of the female of Dytiscus. 
The most important fact against such an assumption, seems to he his 
statement, that different kinds of Cynips have the same Inquilini. I 
mention the above only, that the observer may bear in mind facts which 
will probably open another point of view to him. In my opinion, there 
can be no question concerning a relation in their breeding, as both forms 
appear together in the same galls, and therefore they spring from con- 
temporary broods. 
Hartig, at the same time, makes an addition to the species, enriching 
Cynips with fourteen, Andricus with one, Teras with one, Aulax with 
two, Synergus with six, Cothonaspis with three, Figites with one, Psilo- 
gaster with two new species. Two genera are also characterized : Syno- 
phrus, nearly allied to Diastrophus, but distinguished by the great length 
of the first abdominal segment, which covers the rest both on the upper 
and under side : S. politus, collected by KoUar from the gall of Quercus 
cerris. Xyalaspis, a form of Figites, with a pedicelled abdomen, doubtless 
agreeing with Callaspidia, Dalhb. (v. inf.) ; X. Icevigatus and rugosus, 
both from Styria. The generic name, Scytodes, already used elsewhere, 
the author has changed for Amhlynotus. 
Dalhbom has published a little work, which, as the title shows, is a 
monograph of the two genera named, “ Onychia och Callaspidia tvenne 
for Scandinaviens Fauna nya Insekt-Slagten, horande till Gallaple- 
Stecklarnes naturliga grupp, Monografisk bearbetning 2 Planch, och. 
2 Synopt. Tabell., Lund 1842.” Onychia, Haliday, contains three spe- 
cies : 0. hicolor {Figit. hie. Fonscol.) ; O. ediogaster {Evan, ediog., Ross., 
Cyn. ediog., Panz.) ; and 0. aculeata {Fig. acul., Brebiss.) — Callaspidia, 
Dalhbom (with which the more recently recorded genus Xyalaspis, 
Hartig, agrees, vid. sup.), is related to Figites, as Anacharis, Dalm., is 
to Cynips — it has, namely, a long pediculated abdomen, and contains two 
species : C. De Fonscolombei, Dalhb. {Figites notata, Fonsc.) ; and C. 
Westwoodi, Dalhb., a new species discovered by the author in Gottland. 
The three tables appended give a list of the Cynipidee, natives of Scan- 
dinavia, the distinctions of which are partly illustrated by plates. 
Harris (Ins. of Massachus. p. 395-400) has made some observations on 
the North American Cynipidee. They are mostly found on oaks, the 
largest are on the leaves of the red oak, and belong to the Cynips con- 
jluentus, (!) Harr. From Cynips oneratus, Harr., originate galls on the 
small branches of the white oak, which resemble Sodom apples. Cynips 
nuhilipennis raises galls on oak leaves of the size and colour of cur- 
rants. Cynips seminator, Harr., one of the smallest species, lays its 
eggs round the small branches of the white oak, and the individual 
278 
