EXPLANATION OF THE PLATES. 



Plate V.—Sec Art, VI. 

 Fig. 1. Scull of Hydrous piceus, upper side. 



2. Ditto ditto, lower side. 



3. Head of ditto. 



4. Mandible of ditto. 



5. Maxilla of ditto. 



6. Labium of ditto. 



7. Antennae of ditto. 



8. Labrum of ditto. 



9. Maxilla of Melolontha vulgaris. 



10. Ditto Acilius sulcatus. 



11. Ditto Cychrus rostratus. 



12. Ditto Acheta domestica. 



13. Ditto Perla bicandata. 



14. Ditto Trichiosoma lucoruni. 



15. Scull of .^schna maculatissima. 



16. Ditto VespaCrabro. 



Plate VI.— See Art. VI. 



Fig. 1. Labrum and mandibles of Amaryssus Machaon, (from Savigny.) 



2. Ditto ditto Vanessa Carduii, (from ditto.) 



3. Ditto ditto Pontia Daplidice, (from ditto). 



4. Ditto ditto Zygaena Scabiosae, (from ditto). 



5. Head of Crambus cannarum, (from ditto). 



6. Maxilla of Zygaena Scabiosas, (from ditto). 



7. Ditto Crambus cannarum, (from ditto). 



8. Ditto Pontia Daplidice, (from ditto). 



9. Labium of Crambus cannarum, (from ditto). 



10. Head of a Py rails from North America. 



11. Scull of a Bombus, under side. 



12. Mouth of Tabanus bovinus. 



Plate Vll.-See Art. XVI. 

 Fig. 1. Rhipipteryx Marginatas. 



2. Mouth of ditto. 



3. Scull of ditto. 



4. Hind-leg of ditto. 



5. Fore-leg of ditto. 



6. Telum, &c., of ditto. 



7. Antenna of ditto. 



M. Epicranium. 

 ae. Clypeus. 



oe. Ocelli. 

 JS. Gula. 



6B. Mentum. 

 CE. Oculi. 



y. Antenna. 



j. Mouth. 



a. Labrum. 



e. Lingua. 



i. Mandible. 



0. Maxilla. 



Letters in Plates V. VI. and VII. 



II. 1. Insertio of Maxilla. 



0. 2. Maxilla proper. 



0. 3. Palpifer of Maxilla. 



o. 4. Lacina of ditto. 



i). Galea. 



(i. Maxipalpus. 



«. Labium. 



u. 1. Insertio of Labium. 



u. 2. Labium proper. 



u. 3. Palpiger of Labium. 



«. 4. Ligula. 



li. Labipalpus. 



Plates VIII. and IX.-Sec Art. XXXIV. 



Plate VIII. Deilephila Euphorbiae. 

 Middle figure, male ; lower figure, female; upper figure, under side. 



Plate IX. Deilephila Euphorbiae. 

 Eggs; Euphorbia Paralias, with newly-hatched larvae; larva 5 weeks old, uncolourtd ; 

 full-grown larva; pupa. 



