PLATE X. [PAGE 133.] 



INSECTS. 



Fig. 



1. Atropospukatorius : * natural size. 



2. Aphis of Geranium: a, foot; &, anal 



tube j c, antenna. 



3. Scales on wing of Apollo-butter- 



fly. . 



4. Lithobius forcipatus. 



5. Litho1riwforcipatw,]iea&of: #, an- 



tennae ; b, mandibles ; c, labial 

 palpi ; d, labium. 



6. Dytiscus marginolis, head of larva. 



7. Young larva of Dytiscus margi- 



nalis. 



8. Pupa of Gnat ( Cidex pipiens). 



9. Larva of Gnat. 



10. Head of Gnat, male. 



11. Head of Gnat, female. 



12. Coccinella 7-punctata (large Lady- 



bird), labium of. 



13. Coccinella 7-punctata, mandible of. 



14. Coccinella 7-punctata, labrum of. 



15. Coccinella 7-punctata, antenna of. 



16. Coccinella 7-punctata, maxilla of: 



a, palp ; b, c, lobes of maxilla. 



17. Head of Musca domestica (House- 



fly) : a, antenna ; b, labial palpi ; 

 c, proboscis. 



18. Head ofStomoxys calcitrans : 18 a. 



antenna. 



19. Scales of insects : a, scale of Po- 



dura] b, of House-moth {Tinea 



Fig. 



vestianelld) j c, of Podura ; d, of 

 Lepisma', e, hair of Podura', 

 f, scale of Cabbage-Butterfly 

 (Pontia brassicce). 



20. Head of Cabbage-Butterfly: ^an- 



tennae broken off"; b, palp ; 

 c f tongue (antlia)j d, club of 

 antenna. 



21. Head of human Flea (Pulex irri- 



tans), female ( ) : a, palpi ; 

 b, niaxillsB. 



22. Flea of the Rat (Pulex muris), 



male (cJ). 



23. Pterostichus (Steropus) madidus; 



23 a, antenna. 



24. Part of leg of Pterostichus madi- 



dus : a, tibia j b, tarsus. 



25. Labrum of Pterostichus madidus. 



26. Mandible of Pterostichus madidus. 



27. Labium of Pterostichus madidus : 



a, mentum ; b, labial palp. 



28. Maxilla of Pterostichus madidus : 



a, claw j b, c, maxillary palps. 



29. Proboscis of House-fly. 



30. Larva of Flea. 



31. Larva of Chironomus plumosus. 



32. Foot of House-fly. 



33. Eye of House-fly. 



34. Leg of Ant (Formica fused) ; 



34*, pectinate process. 



