ala Tos 
: VOLUME IV. 
INSECT A—ZOOPHYTES. 
INSECTA. 
Plate 1. Fig. 1.—Intestinal canal of APHRoPHORA spuMARIA, Suckow. A.—CEso- 
phagus. D.—Crop. D, D.—Divisions of the ventriculus. 
E.—llium. H.—Colon. K, K.—Biliary vessels. 
Fig. 2.—Intestinal canal of the maggot of Musca carnaria, Suckow, 
marked the same as above. N, N, are the salivary vessels with 
their simple outlets, O. 
Fig. 3.—a. A portion of the biliary vessels much magnified. 
Fig, 3.—Intestinal canal of the perfect fly marked as before. 
Fig. 4.—Intestine of the caterpillar of Gasrropacna Pini, Suckow, 
marked similarly. F, is the clavate gut. O, O, are the 
spinning vessels. 
Fig. 5.—Intestinal canal of Pontia Brassica, Herold. C.—The sucking 
stomach. G.—The cecum, &c. marked as before. 
Fig. 6.—Proventiculus of the Dyriscus MARGINALISs. 
Plate 2, Fig. 1.—Intestinal canal of the larva of CaLosoma sycopHantTa, marked 
as before. H.—The internal longitudinally folded colon 
to which the last segment of the larva is still attached. 
Fig. 2.—Intestinal eanal of the perfect beetle, Suckow. D.—Ventricu- 
lus. D*.—A portion covered with glands. 
Fig. 3.—Intestinal canal of the larva of Dyriscus MarGinatis, marked the 
same 
Fig. 4.—Intestinal canal of the perfect beetle, similarly marked. 
Plate 3. Fig. 1.—Single salivary vessel of NEPIs CINEREA, Ramd. a.—Duct. 6. 
—Glands. c¢.—Glandular vessel. 
Fig. 2.—Second salivary vessel of Nepa cINEREA, Ramd. a, b.— Double 
duct of the auxiliary gland. d.—Auxiliary gland. e, e.— Chief 
land. 
Fig. 3! salivary vessel of Biaps, Leon, Duf. 
Fig. 4.—Auxiliary gland of Tasanus, Ramd. 6.—Duct. 
Fig. 5.—Auxiliary gland of Cicapa, Leon, Duf. a, a, a, a.—Glandular 
bags. 6, b.—Ducts. c, c.—Glandular vessels. 
Fig. 6.—Ventral salivary glands of Lepris, Ramd. a, a.—The two 
glandular bags. 6.—Q#sophagus. c.—Outlet of the sucking 
stomach. d.—Commencement of the Ventriculus. 
Fig. 7.—Ventral salivary glands of Bompytivs, marked the same. 
Fig. 8.—Ventral salivary glands of Curysoroxum, Ramd., the same. | 
Fig. 8*.—Lateral view of the heart of MELoLonTHa votearis. a, a.— 
Orifices of the heart, 1—9.—Ventriculi. B.—End of the 
heart. C.—Aorta. 
Fig. 9.—Commencement of the heart, with the muscular wings of 
MELOLONTHA VULGARIS. a, a.—Muscular wings. 6, b— 
Orifices in them, in front of each aperture of the heart. 
Fig. 10.—Spiracle of the abdomen of Dyriscus MarGINALts. 
Fig. 1].—Portion of a trachea. a,a.—External tunic. 0, b.—Spiral fila- 
ment which forms the second tunic. c, ¢.—Third, or mucous 
tunic. 
ig. 12.—A portion of the tunic of the air-bag of Musca vomirorta, 
magnified, 
a 
OS 
b 
ar 
290994 
