EXPLANATION OF .ANATOMICAL PLATES. 25 



APPENDIX TO CUAPTEll II. 



DESCRIPTION AND REPRESENTATION OF PARTS OF STTn INSECTS AS ARE 

 REFERRED TO IN THE FOLLOWING TREATISE. 



( Copied mo«il>* from lli« Naiuraliii's Library.) 



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

 Fig. 1. IlcaJ, upper side : a, forehead ; b, vertex ; c, occiput ; del, temples ; ce, eyes ; /, torulus, the 



cavity for the insertion of the antennx ; g, clypeus ; h, labrura. 

 Fig. 2. Under side of the head : k, posterior orifice ; /, neck ; ?«, lucntum ; o, eyes ; p, mandibles > 



s, labial palpi. 

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

 Fig. 5. Slandible of Hijdnis picetis. 

 Fig. 7. Mandible of Garius. 

 Fig. 8. Mandible of Calosoma sycophania. 

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



c, internal lobe. 

 Fig. 10. Maxilla of Ckindcla : a, external maxillary palpus ; b, 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- 



palpifcrs of Stbauss : bed form the stalk (stipes) ; c, external lobe ; /, internal ditto. 

 Fig. 12. Labium of Cychrus rostratus : a, mcntum ; b, ligula; c, labial palpi. 

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

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



also the cox.x : A, pronotum ; c, mesonotum ; F, mctanotum ; uii, parapleura ; c, scutcl- 



lura ; dd, patagia. 

 Fig. 15. Side view of the thorax of Scolia Jatifrons : s, mesosternum ; B, prostermun ; d, meta- 



stemum ; d, patagium ; e. scutellum ; a, first spiracle ; b, second ditto. 

 Fig. 10. View of the same from beneath : bb, prostcmum ; ee, mesosternum ; go, metastcrnum. 

 Fig. 17. Thorax of Cicada fraxini : A, pronotum ; c, mesonotum ; ff, metanotura ; c, scutellum ; 



dd, frenum. 

 Fig. 18. Hindlcg of Melolontha vulgaris : ab, coxa ; d, trochanter ; c, thigh ; /, tibia : /i, tarsus ; 



J, cl.iws. 

 Fig. 10. Pectinated claws. 



[ AORICCLTL-RAL RePORT — VoL. V.] 4 



