XVI LIST OF ILLUSTEATIONS. 



PAGE 



XXVII. — 1. PhlaDothrips coriacea. 2. CordulegJister annulatus. 3. Raphidia 

 ophiopsis. 4. Chrysopa vulgaris. 6. Osmylus chrysops. a. Eggs of 

 Chrjsopa 276 



XXVIII. — Anatomy of a iitmenopterous inskct. — the hornet (vespa 

 CRABRo). 1. Head and parts of the mouth, a. Lingua, or tongue, bh. 

 Labial palpi, cc. Maxillary palpi, del. Maxillte. ee. Mandibles, ff. 

 Eyes, g g. Toruli, or beds of the base of the antennae, hh. Ocelli, or 

 simple eyes ; sometimes called Stemmata. i. C'lypeus. k. Labrum. I. 

 Epipharynx. 2. Thorax, a. Mesothorax. b b. Tegulaj. c. Scutellum. 



d. Prothorax. e. Postscutellum. /. Metathorax. 3. Abdomen, upper 

 Biirface. 4. Abdomen, profile. 5. Head, front view, a a. Antennas, b b. 

 Eyes. cc. Ocelli, d. Scutellum. ec. Mandibles. 6. Thorax, under sur- 

 face, a. Ped :f coxae of pro-legs. b. Sternum, c. Bed of coxae of inter- 

 mediate legs. d. Bed of coxae of posterior legs. e. Bed of neck. 7. 

 Anterior or pro-legs. a. Tarsus, b. Tibia, c. Femur, d. Trochanter. 



e. Coxa. 8. ^Middle or intermediate legs. 9. Hinder or posterior legs. 

 10. Right wings, a. Costal cell. b. Externo-inedial cell. c. Interno- 

 medial cell. d. Anal cell, e. Marginal cell. ./". First Submarginal cell. 

 g. Second Diseoidal cell. h. Second Submarginal cell. i. Third Sub- 

 xnarginai cell. k. Fourth Submarginal cell. I. First Diseoidal cell. m. 

 Third Diseoidal cell. n. First Apical cell. o. Second Apical cell. 11. 

 Left wings separated 296 



XXIX. — 1. Hylotoma rosae. 2. Croesus septentrionalis. 3. Athalia spinarum. 

 4. AUantus scrophularia. a. Croesus, larva, b. Athalia, larva, c. Al- 

 lantus, larva, d. Hylotoma, antenna, e. Crceaus, antenna. ,/'. Athalia, 

 antenna, g. Allantus, antenna . . . . . , . .299 



XXX. — 1. Cimbex lutea. 2. Tenthredo zouatus. 3. Cryptus pallipes. 4. 

 Lophyrus pini. a. Cimbex, larva, b. Lophyrus, larva, c. Jophyrus, 

 cocoon, d. Do. antenna, male. e. Do. antenna, female . . . .201 



XXXI. — 1. Ichneumon proteue 2. Ichneumon crassorius. 3. Tryphon 

 rutilator. 4. Cryptus migrator. 5. Pimpla instigator, a. Tryphon, larva. 

 b. Pimpla instigator, female, profile of abdomen, c. Do. dried specimen. 

 d. Do. seen from beneath, e. Do. abdomen of male ..... 321 



XXXII. — 1. Microgaster glomeratus. 2. Mymar pulchellus. 3. Teleas ' 

 ehitior. 4. Cleonymus maculipennis. a. Teleas, antenna, female, b. Do 

 antenna, male. c. Microgaster, larva in caterpillar of cabbage-but^^rfly. 

 d. Cocoons of Microgaster alvearius 32G 



XXXIIL— 1. 'Chrysis ignita. 2. Mutilla Europaea, female. 3. Mutilla 

 Europaea, male. 4. Formica rufa, winged female. 5. Do. neuter or 

 worker. 6. Do. winged male. a. Formica rufa, labium, h. Do. antenna, 

 male. c. Do. antenna, worker . . 330 



XXXIV. — 1. Pompilus fuscus. 2. Astata boops. 3. Mellinus ctrvensis. 4. 

 Crabro quadrimacidatus. 5. Cerceris arvensis. a. Pompilus, maxilla and 

 palpus, b. Do. labium, c. Mellinus, mandible, d. Do. labium, e. Do. 

 maxilla and palpus. /. Crabro, larva, g. AsUita, head of female . . 342 



