INSECTA — HYMENOPTERA 
231 
HYMENOPTEEA. 
SiEBOLD has published his researches on the Receptaculum Seminis of 
the female Hymenoptera. (Germ. Zeitchr. iv. p. 362, t. 2.) 
There are two principal types shown in the formation of this part, 
which agree with the two chief divisions of the Hymenoptera, according 
to the form of the larvae. In the first type, the receptaculum seminis is 
distinguished by a ductus seminalis, a capsula seminalis, and a glandula 
appendicularis. There were examined, — 1. Formicidce, where the parts 
in question are disproportionally large ; 2. Apidce, where they are found 
in the working bees in a very undeveloped condition ; 3. Andrenidce ; 
4. Vespidm, where, in the workers, these parts are found more distinctly 
formed than in the working bees — even in the Polistce the workers are 
only distinguished from the egg-laying females, by the empty ovary 
and receptaculum seminis ; 5. Scoliadce ; 6. Mutillidce ; 7. Crdbro- 
nidce; 8. Bembecidce ; 9. Chrysidce ; 10. Cynipidce, where, through 
the presence of these parts alone, Hartig’s assumption of the existence 
of androgynity will be disproved; 11. Pteromalini; 12. Chelonidce ; 
13. Evaniadce ; 14. Braconidw ; 15. Ichneumonidm, where the seminal 
capsule is always very small. In the second type, the receptaculum semi- 
nis forms a simple swelling of the vagina, in which can be distinguished 
neither ductus seminalis, nor a separate capsula seminalis, nor glandula 
appendicularis : to this belong the Tenthredinidce, of which a consider- 
able number of different genera have been examined. The Uroceridce, 
Dryince, and Codrince, have not yet been examined by the author in 
relation to the parts in question. 
A periodical, “ Memoria per servire alia storia naturale di alcuni 
imenotteri del Cav. Guis. Gene, Prof, di Zool. n. r. u. di Torino, soc. att. 
d. Soc. Ital. d. Scienz. res. in Modena : Modena, 1842,” contains some 
excellent observations on the habits of individual Hymenoptera. 
Dispositio Methodica Spec. Scand. ad Fam. Hymenopt. nat. ab A. G. 
Dahlbom, Lund, 1842, is the precursor of a systematic work, of which at 
present the first number only has appeared, extending to the Linnasan 
genus Sphex. The families and genera are illustrated on synoptical tables, 
according to their characteristics, and a view given of the Swedish species. 
The reporter has spoken of the Hymenopterous Insects of New Hol- 
land (Arch. 1842, i. p. 252), and described a number of species from 
Van Diemen’s Land. 
Tenthredinid^ and Sirices. — Saxesen has published a list of the 
Tenthredinidce and Sirices hitherto found on the Harz (Vier Verzeich- 
nisse als Beitrage zur Kenntniss der Fauna und Flora des Harzes, 
gedr. f. die Mitglieder des wissensch. Vereins des Harzes, 1842). It is 
275 
