§ 350. THE INSECTA. 453 
of these animals. The two ovaries are unilocular pouches of unequal size, 
inserted laterally, by means of a short oviduct, upon the vagina. The upper 
extremity of this vagina contains sperm, after copulation, and may, therefore, 
be regarded as a Receptaculum_seminis ; while the lower portion is wide- 
ly dilated, and may, therefore, be considered as an uterus. The upper or nar- 
rower portion of the vagina receives two small, simple, or somewhat ramose 
glandular tubes (Glandulae sebaceae).“ Below these glands are situated 
the two excretory ducts of a double glandular apparatus, very voluminous 
and multiramose, whose product serves, without doubt, to nourish the 
larvae which are provisionally developed in the uterus. 
With the Lepidoptera, each ovary is composed of four very long, spiral, 
multilocular tubes. The Receptaculum seminis is pyriform, and often 
has a long, spiral Ductus seminalis.” At its base opens a simple or bifur- 
cated accessory gland, and underneath it there is aiways a large, double, 
sebaceous gland, consisting of two rather long, flexuous, simple cacca. 
These last open into the vagina, by means of a short common excretory 
duct, and each, at their point of union, is usually dilated into a vesiculi- 
form reservoir.“” Some Lepidoptera have, moreover, two smaller ramose 
glands, situated near the orifice of the vagina, which secrete, perhaps, an odor- 
ous substance that excites the copulatory act.©? The copulatory pouch, 
finally, is very remarkable in all the species of this order. It consists of a 
-arge, pyriform reservoir, sometimes constricted in its middle, and havy- 
ing for the reception of the penis, a canal which opens externally by a 
special orifice situated below the vulva. In its course this canal sends 
off a small, flexuous, lateral duct, which passes into the vagina opposite the 
mouth of the Receptaculum seminis, and thus forms a communication 
between this last and the copulatory pouch. 
With the Hymenoptera, the ovaries® vary very much as to the number 
of their component tubes, of which there are sometimes four to six, some- 
times eight to ten, and with some species they range from twenty to a hun- 
dred.” These tubes are always multilocular, and never very long. The 
If These tubes are simple with Melophagus, and 
ramose with Hippobosca. 
18 See my researches in Miller’s Arch. 1837, p. 
425, and those of L. Dufour, Ann. d. Se. Nat. VI. 
1825, p. 308, Pl. XIII, and IIL. 1845, p. 76, Pl. III. 
This last-mentioned naturalist has very well figured 
Taf. VI. K. (indistinct). Moreover, Malpighi (De 
Bombyce, 1669, p. 81, Tab. XII. fig. 1, J. K. M.) 
had already perceived, with the silk-worm, all the 
appendages of the vagina, and speciaily the copu- 
latory pouch with its canal of lateral communica- 
tion. With Euprepia Hebe this canal has a pyri- 
1 J 
the female organs of Hippol and Melophagus ; 
only he is deceived relative to the glandular append- 
ages of the vagina, in regarding the upper pair a3 
a Receptaculum seminis, but which never contain 
spermatic particles. 
19 For the appendages of the female organs of the 
Lepidoptera, see Siebodd, in Muiller’s Arch. 1837, 
p. 417. 
20 The seminal receptacle has been figured in its 
various stages of development by Herold (Ent- 
wickelungsgesch. d. Sck 1. Taf. LV. fig. 1, u.y. 
p. and Taf. XXV.) as a unicornous secreting organ. 
See also Suckow, Anat. u. physiol. Untersuch. 
Taf. VI. g. g. 
21 See Herold, loc. cit. Taf. III. fig. 1, t. 2. 
and the following plates; also Suckow, loc. cit. 
Taf. VI. 1.1. 
22 Melitaea, Argynnis, Zygaena, &c. 
23 See Herold, loc. cit. Taf. LI. fig. 1, x. f. g. 
and the plates following; also Suckow, loc. cit. 
* [§ 850, note 23.) See also for the internal 
female genital organs, and especially their develop- 
ment, of the Lepidoptera, Meyer, loc. cit. Siebold 
form deverti 
24 For the female genital organs of the Hymen- 
optera, see L. Dufour, Recherch. sur les Orthopt. 
&c. p. 406. 
25 Each ovary is composed of three or four ovige- 
rous tubes with Xylocopa, Bombus, Anthophora, 
Chrysis ; of five to six wilh Nomada, Sapyza, 
Chalcis, Vespa; of eight to ten with Pimpla, Pa- 
niscus ; of ten to twelve with the Tenthredinidae ; 
of twenty to twenty-five with Myrmica, Xiphrydria 
and Banchus ; and of more than one hundred with 
Apis. With Chelonus the ovaries present a re- 
markable exception ; they consist each of two long 
fiexuous tubes, which are very widely dilated at 
their lower extremity. LZ. Dufour (loc. cit. p. 
541, Pl. X. fig. 143) regards these swellings as a 
kind of uterus in which are developed the larvae of 
these Ichneumonidae ; but this assertion cannot be 
admitted without further research. 
and Kélliker's Zeitsch. I. 1849, p. 182. 
memoir contains many new details. —- Ep. 
This 
