TABLE OF THE PLATES. XXI 



INSECTA. Vol. IV. Page 



Plate 68. Fig. 16.— Ugyops PhEciiEKoNH, Guer. . . .176 



D Fig. 17. — Head of Delpiiax mini ta, Fab. . . . 176 



Plate 69. Fig. 1. — Membracis mexicana, Guer. . . . 177 



Fig. 2. — Daknis affinis, Guer. . . . . l77 



Fig. 3. — BociuiuM PRoxiMiM, Guer. . . . 177 



Fig 4. — Centrotus anchouago, Guer. . . . l77 



Fig. 5. — .\iiatomical details of Centuoti:s cornutis, Fab. . 177 

 Fig. 6. — Anatomical details of .(Etahon RELicutAXUM, Latr. . l78 



Fig. 7.— Ledra aurita, Fab. . . . ,178 



Fig. 8. — Cercopis Urvillei, Serv. . . . . 179 

 Fig. 9. — Anatomical details of Cercopis saxgcinolenta, Pauz. . 179 



Fig. 10. — Tettigoma pci.chella, Guer. . . . 180 



Fig. 11. — PsiLLA GEMST.E, Guer. . . . . 181 



Fig. 12. — Antennae of a LiviA . . . ,181 



Fig. 13.— Th rips fasciata, Fab. , , . . 181 



Fig. 14. — Antennae of Thrips ULMi, Fab, , , . 181 



Fig. 15.— Aphis rose, Fab. . . . . 182 



Fig. 16.— Head of an Aleirodes . , . , 183 



Fig. 17. — Coccus cacti, Lin, . , . . 185 



Plate 70. Fig. l.— LiBELLuLA indica, Fab. . . .189 



Fig. 2. — Nyraphse of Libellula depressa, Lin. . . 189 



Fig. 3.— Hinder claws of the ^shne of Egypt . . 190 



Fig. 4. — Agrion Chinensis, Guer. Fab. , . . 190 



Fig. 5. — Hinder claws of Agrion virgo, Fab. . . 191 

 Fig. 6. — Nymphae and Anatomical details of Agrion puella, Lin. . 191 



Fig. 7. — Ephemera limbata, Serv. . . . . 193 



Fig. 8. — Larva of Ephemera VLLG ATA, Lin. . .193 



Fig.C9. — Ephemera biloculata, Fab. . , . 193 



Plate 71- Fig. 1. — Nemoptera Extensa, Oliv. ; Nemoptera halterata, Fab.. 194 



Fig. 2. — Bitt.\cls tipllarus, Latr. , . . , 194 



Fig. 3. — Anatomical details of Panorpa COMMUNIS, Lin. . 194 



Fig. 4. — BoREUs hiemalis, Lin. . . . . 194 



Plate 72. No. 1. — Parts of the skeleton of Geotrcpes nasicornis. 



Fig. 1. — Pronotum from beneath, the prosternum is removed, a, a. — The 



retiexed margin. 

 Fig. 2. — Prosternum from beneath. 



Fig. 3. — The same from the side. a. — The internal processes. 

 Fig. 4. — Meso and metathorax from above. 

 Fig. 5. — Mesosternum with the scapulae. E. — IMesosternum. D, D. — 



Ala anterior scapulae. D*, D*. — Ejusd. ala posterior. 

 Fig. 6. — Meso and metathorax from below. 

 Fig. 7. — Mesosternum from within, a, a, a. — The three points of the 



processus internun. 

 Fig. 8. — The internal process from the gide. a, a, a. — The three points. 



Plate 72. No. 2. — Skeleton of Cetonia aurata. 



Fig. 1. — Meso and metathorax from above. 

 Fig. 2. — The same from beneath. 

 Fig. 3. — Prosternum and scapulae seen from the front. 

 Fig. 4. — The connate sternum from within, a, a. — Proc. intern, mesos- 

 terni. b. — Proc. intern, metast. 



Plate 72. No. 3. — Skeleton of Hydrophilus picevs. 



Fig. 1. — Pronotum from beneath, a, a. — Reflexed margin 

 Fig. 2. — Prosternum from beneath. 

 Fig. 3. — Mesonotum from abo»e. 

 Fig. 4. — Metauotum from above. 



