454 THE INSECTA. $ 350. 
Receptacula seminis is nearly always simple, round, or ovoid, and necked, 
and is continuous into a usually short, seminal duct.©? A Glandula appen- 
dicularis is never absent, and consists, usually, of a bifurcate tube, which 
opens into the. Ductus seminalis, and only rarely into the Capsula seminalis 
itself. ’ 
With the Tenthredinidae this apparatus is, moreover, formed after a dif- 
ferent type ; the seminal vesicle is a simple deverticulum of the vagina, and. 
more or less distinct from it, beside, it is deficient in the accessory gland. 
The copulatory pouch is absent with all the Hymenoptera as are also the 
Glandulae sebaceae with those females which have a sting and a poison- 
gland; but these sebaceous glands are highly developed with those species 
having an ovipositor, into which last they open, and probably serve some 
purpose connected with the oviposition, partly as sebacéous, and partly as 
excitatory organs. This secretory apparatus consists of a simple or a 
double ramose gland, whose excretory duct receives the neck of-a pyriform 
receptacle, or, sometimes, is itself dilated into a vesicular reservoir. 
With the Orthoptera, the two ovaries are nearly always composed of nu- 
merous, multilocular tubes, which usually open in a single row upon the inter- 
nal or external side of two large and sometimes very long ovaries. The 
seminal receptacle often consists of a simple longer or shorter pedunculated 
vesicle, whose closed extremity is dilated into a pyriform vesicle with the 
Psocidae, Forficulidae, Locustidae, Phasmidae and Mantidae.“Y A similar 
Capsula seminis is often found with the Acrididae on one of the sides of the 
Ductus seminalis and removed from its extremity. 
% For the Receptaculum seminis see Siebold, 
Observ. quaed. Entom. loc. cit. p. 6, and in Ger- 
mar’s Zeitsch. IV. p. 362, Taf. IL. With those 
females which, at short intervals, lay very many 
eggs, the seminal receptacle is very large; see 
Swammerdamm, Bib. der Nat. Taf. XIX. fig. 3, 
t.u. u., where the Receptaculum seminis of a 
honey-bee is very well represented.* 
27 The Glandula appendicularis is simple and 
inserted on the Ductus seminalis with the Ptero- 
malini and Cynipidae ; it is double, and opens 
lirectly into the Capsula seminis, with Vespa 
:rabo and Tiphia femorata. 
28 The seminal receptacle is double, exceptionally, 
with Lyda. , 
29 This glandular apparatus is simple and has a 
vateral pyriform reservoir with various Ichneumon- 
idae ; see L. Dufour, Recherch. Pl. X. fig. 137- 
142 (Pimpla and Bracon). This naturalist calls 
this apparatus Glande sérifique, as distinguishing 
it from the Glande sébifique. With Sirex,I have 
observed the excretory duct of this single and mul- 
tiramose gland dilated into a large reservoir. With 
the Tenthredinidae, it is also ramose, but double as 
well as its vesicular reservoir ; see L. Dufour, loc. 
cit. Pl. X. fig. 155-157 (Tenthredo and Cimbez). 
80 With the Locustidae, Acrididae, Mantidae 
and Libellulidae, the ovarian tubes are inserted 
upon the internal side, and with the Flasmidae 
and Ephemeridae, on the outer side of the two on- 
ducts. Forficula gigantea has, moreover, only 
five internal multilocular tubes, while with Forft- 
cula auricularis, the very long oviducts have on 
all sides a multitude of unilocular tubes. With 
Mantis, the ovarian tubes are unilateral, but 
united together in several bundles. With Oedi- 
poda cerulescens and Truzalis nasuta, the two 
* [§ 350, note 26.] See also Longstreth (Proc. 
Azad. Sc. Philad. 1852, VI. p. 49) for some observa- 
Most of the Blat- 
long, flexuous, caecal oviducts, have tubes only at 
their lower extremity. The oviducts of Perla bi- 
caudata are still more remarkable ; they are very 
long, flexuous, and have ovarian tubes only on one 
side of their upper extremity, and anastomose in a 
loop-like manner. For all these differences, see L. 
Dufour, Recherch. sur les Orthopt. &c. Pl. IL- 
Vv. and Pl. XI. fig. 165, Pl. XIII. fig. 206, and 
inthe Ann, d. Sc. Nat. XIII. 1828, Pl. XX. XX11. 
(Forficula). 
81 With Forficula, and Acketa, the seminal re- 
ceptacle has a long and flexuous peduncle, which, 
with the Psocidae, and Locustidae, is shorter. That 
of Psocus pulsatorvus contains several long-pe- 
dunculated, glandular bodies (Witzsch in Ger- 
mar’s Magaz. IV. p. 281, Taf. IL. fig. 3-5), which 
I formerly regarded as Capsulae seminales 
(Miiller’s Arch. 1837, p. 410), but which are prob- 
ably spermatophores. With Perla, the seminal 
receptacle is a simple caecum, twisted like a ram’s 
horn, and the base of which supports several short 
glandular follicles (Glandulae appendiculares 2). 
For the seminal receptacle of the Orthoptera cited 
in the text, see especially Roesel, Insektenb. Th, 
II. Heuschr und Grilen 8 Jung. Taf. IX. 
fig. 3, k. (Decticus) ; L. Dufour, Recherch. sur 
les Orthopt. Pl. IIL. fig. 31, Pl. IV. fig. 43 (4cheta 
and Mantis) ace Selcid, Mow A Vat Cur. 
XXI. pert I yp M4, ise SKV fig 1 c. (Lo- 
e ‘ 
ws Gye 
32%3ee Hegetschweiler, De insect. genitalibus 
dissert., fig. VII. f.e.; and Szebold, in Miller's 
Arch. 1837, p. 409, Taf. XX. fig. 3 (Grydlus). 
The Ductus seminalis is usually very long and 
intertwisted, as, for example, with Gryl/us, Truz- 
alis, &c. 
tions on the impregnation of the common honey-bee, 
as due to a Receptaculum seminis. — Ep. 
