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 mostly from the Naturalist's Library.) 



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

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



cavity for the insertion of the antennas ; g, clypeus ; h, labrum. 

 Fig. 2. Under side of the head : A', posterior orifice ; I, neck ; m, mentum ; o, eyes ; p, mandibles ; 



s, labial palpi. 

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

 Fig. 5. Mandible of Hydrus piceus. 

 Fig. 7. Mandible of Gcerius. 

 Fig. S. Mandible of Calosoma sycophanta. 

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



c, internal lobe. 

 Fig. 10. Maxilla of Cicindela : 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- 



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

 Fig. 12. Labium of Cyehrus rostratus : a, mentum ; b, ligula; c, labial palpi. 

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

 Fig. 14. Thorax of Scoliaflavifrons, showing in succession the prothorax, mesothorax and mets-thorax. 



also the coxse : A, pronotum ; c, mesonotum ; F, metanotum ; hh, parapleura ; c, scutel- 



lum ; dd, patagia. 

 Fig. 15. Side view of the thorax of Scolia Jlavifrons : e, mesosternum ; b, presternum ; g, meta- 



sternum ; d, patagium ; c. scutellum ; a, first spiracle ; b, second ditto. 

 Fig. 10. View of the same from beneath : bb, presternum ; ee, mesosternum ; GG, metasternum. 

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



dd, frenum. 

 Fig. IS. Hindleg of Melolontha vulgaris : ab, coxa ; d, trochanter ; e, thigh ; /, tibia ; h, tarsus ; 



i, claws. 

 Fig. 19. Pectinated claws. 



[Agricultural Report — Vol. v.] 4 



