EXPLANATION OF ANATOMICAL PLATES. 25 



APPENDIX TO CHAPTER II. 



DESCRIPTION AND REPRESENTATION OF PARTS OF SUCH INSECTS AS ARE 

 REFERRED TO IN THE FOLLOWING TREATISE. 



( Copied mo«Uy from th« Naturalirt'a Library.) 



I. PARTS OF THE HEAD, MOTJTn, &,c.— PLATE A. 

 Fig. 1. Head, upper side : a, forehead ; h, vertex ; c, occiput ; dd, temples ; ee, eyes ; /, torulus, the 



cavity for the insertion of the antennae ; g, clypeus ; A, labrum. 

 Fig. 2. Under side of the head : k, posterior orifice ; I, neck ; jk, mentum ; o, eyes ; pi mandibles ; 



s, labial palpi. 

 Figs. 3, 4, 5. Forms of the labrum. 

 Fig. 5. Mandible of Hydrus piceus. 

 Fig. 7. Mandible of Gcerius. 

 Fig. 8. Mandible of Calosoma sycophanta. 

 Fig. 9. Maxilla of Necropkorus germanicus : a, maxillary palpus ; b, external lobe of the maxilla ; 



c, internal lobe. 

 Fig. 10. Maxilla of Cicindela : a, external maxillary palpus ; h, internal ditto ; c, interior lobe, with 



an articulated hook at the apex d. 

 Fig. 11. Form of the maxilla of Hydrus piceus : a, insertion or hinge ; b, dorsal piece ; c, squame- 



palplfers of Strauss : bed form the stalk (stipes) ; e, external lobe ; /, internal ditto. 

 Fig. 12. Labium of Cychrus rostratus : a, mentum ; h, ligula ; c, labia! palpi. 

 Fig. 13. Labium of Carabus, inside : a, mentum ; b, lingua ; c, paraglossae. 

 Fig. 14. Thorax of Scolia flavifrons, showing in succession the prothorax, mesothorax and metathorax, 



also the coxse : A, pronotura ; c, mesonotum ; F, metanotum ; hh, parapleura ; c, soutel- 



lum ; dd, patagia. 

 Fig. 15, Side view of the thorax of Scolia flavifrons ; e, mesostemum ; B, prosternum ; o, meta- 



stemum ; d, patagiura ; c. scutellum ; a, first spiracle ; b, second ditto. 

 Fig. 16. View of the same from beneath : bb, prosternum ; ee, mesostemum ; oo, metasternum. 

 Fig. 17. Thorax of Cicada fraxini : A, pronotum ; c, mesonotum ; pp, metanotum ; c, scutellum ; 



dd, fronum. 

 Fig. 18. Ilindleg of Melolontha vulgaris : ab, coxa ; d, trochanter; Ct thigh ;. fr tibia; h, tarsus ; 



i, claws. 

 Fig. 19. Pectinated claws. 



[ Ageicultural Repoet — Vol. v.] 4 



