§ 350. THE INSECTA. 455 
tidae™ and Libellulidae™ have a short, double, seminal receptacle, which, 
however, appears to be wholiy wanting with the Ephemeridae. There is a 
yound Bursa copeatrix only with the Libellulidae.“» The glandular 
appendages of the vagina are also not found with all the Orthoptera. 
They are wanting with the Fdrficulidae, Phasmidae, Perlidae, Ephemeri- 
dae, Libellulidae and Acrididae, but with Decticus and Locusta, there is 
a sebaceous organ consisting of a simple, pretty long tube,“ which, with 
the Achetidae, is more or less ramose, and with the Blattidae and Mantidae is 
composed of a considerable number of partly simple, partly ramose follicles.” 
With the Neuroptera, the ovaries consist always of multilocular tubes. 
With the Hemerobidae, and Myrmeleonidae, there are ten inserted on the 
external side of the two large oviducts, and with the Phryganidae, their 
number is quite large, but their insertion on the oviducts is the same. 
The ten with Panorpa, and the much larger number with Siaiis, are dis- 
posed verticillate at the extremity of the oviducts. With Myrmeleon and 
Panarpa, the seminal receptacle is a long, pedunculated sac; and has, with 
Hemerobius, a single, and with Raphidia, a double Glandula appendicula- 
ris.) With the Phryganidae, this receptacle is still more complicated, 
for, beside a long, tortuous accessory gland, which is inserted on the neck, 
or at the base of the Capsula seminis, there is, at the lower extremity of 
the Ductus seminalis, another and flexuous glandular tube, and a short- 
pedunculated reservoir which corresponds perhaps to a copulatory pouch,“ 
With Siadis, beside two lateral deverticula serving, probably, as copulatory 
ouches, the vagina has numerous vesicular appendages filled with a dark 
liquid, but the nature of these is still not understood.“? With Myrmeleon, 
Hemerobius, and Panorpa, the vagina receives two simple, more or less 
flexuous, glandular tubes,“ which are probably sebaceous. organs, and 
with the Phryganidae, consist of six digitiform follicles. 
With the Coleoptera, the ovaries consist of trilocular, rarely multilocular 
tubes,“ which are inserted on the calyciform upper extremity of the oviducts, 
in groups of five to ten or even of fifteen to thirty and forty.“ Beside 
83 Blatta orientalis has two short and flexuous 
seminal receptacles ; but Blatta germanica has 
two large and two small ones; see Szebodd, in 
Muiller’s Arch. 1837, p. 408. 
84 The seminal receptacles of Libedlula, Aeschna 
and Diastatomma consist of two small caeca, 
which, with Calopteryx, open into the vagina 
through a common duct ; while, with Agrion, there 
is only a single long receptacle ; see Rathké, De 
Libellular. partibus genital. Tub, I. fig. 11-13, Tab. 
II. fig. 12-14, and Tab. III. fig. 9-11, ¢., and LZ. 
Dufour, loc. cit. Pl. XI. fig. 165, d. d. (Libellula, 
Aeschna and Agrion). See also my memoir on 
the generation of the Libellulidae, in Germar’s 
Zeitsch. I. p. 433. 
35 See Rathké, loc. cit. Tab. I. fig. 11-13, Tab. 
TI. fig. 12, 18, and Tab. III. fig. 9-11, b. 
36 See Roesed, loc. cit. Taf. IX. fig. 3, i., and 
Siebold, Nov. Act. Nat. Cur. loc. cit. p. 255, Tab. 
XIV. fig. 1, e. 
87 See L. Dufour, Recherch. &c. Pl. IIT. fig. 
31, d. (Oecanthus), Pl. IV. fig. 48 (Mantis). It 
is not surprising that this wax-apparatus is so 
highly developed with the Blattidae and Mantidae, 
for, as is known, the females of these insects sur- 
round their eggs with very spacious, multilocular 
capsules, which they carry about with them, or 
fasten to foreign bodies; see Gaede, Beitr. &c. 
Taf. I. fig. 18, 14 (Blatta orientalis), and Roesel, 
loc. cit. Th. LV. Taf. XII. (Mantis). 
88 For the female organs of the Neuroptera, see 
L. Dufour, Recherch, sur les Orthopt. &c. Pl. 
XII. XIII. 
39 ZL. Dufour, loc. cit. Pl. XII. fig. 174, da. 
(Panorpa). 
40 L. Dufour, Thid. Pl. XIII. fig. 211,212, * 
41 L. Dufour, Ibid. Pi. XII. fig. 188, b.; and 
Suckow, in Heusinger’s Zeitsch. I. Taf. XVI. 
fig. 16, d. 
42 L. Dufour, Ibid. Pl. XII. fig. 174, 194, ve. c. 
43 L. Dufour, Ibid. Pl. XII. fig. 211. By 
means of these glands the females of Phryganea 
envelop their eggs with a gelatinous substance 
which swells in water and often sticks to stones or 
aquatic plants, presenting the appearance of an 
annular spawn. 
44 The ovarian tubes are multilocular with the 
Carabidae, Hydrocanthari, Cyphonidae, Telephori- 
dae, and Curculionidae; in general they are 
bilocular with the Staphylinidae; see Stein, 
Vergl. Anat. &c. p. 29. 
45 The ovaries are multitubular with the Cara- 
bidae, Hydrocanthari, Hydrophilidae, Elateridae, 
Chrysomelidae,and Coccinellidae; while with Apion, 
Lizus,and Hy-esinus, there are only two on each 
side ; see L. Dufour, Ann. d. Sc. Nat. VI. 1826, Pl 
XVII.-XX.; Suckow, in Heusinger’s Zeitsch. II 
- Taf. XIII, and Stein, loc. cit. Taf. I11.-VIIL. 
