EXPLANATION OF THE PLATES. 729 



FIG. 



13. Obtected pupa. Sphinx Ligustri. a. The tongue-case. 

 b. The eye-case. c. The trunk-case. d. First segment 

 of the abdomen, e. The adminicula. J". The mucro, 

 or point of the tail. Vol. III. p. 949 — . 



14?. Hairy obtected pupa of Lariafascelina. 



PLATE XVII. * 



1. Coarctate pupa. CEstrus hcemorrhoidalis. (Reaum.) 



2. Stratyomis chamceleon. (Ibid.) a. The 



pupa as formed within the skin of the larva. 



4. Oviform body which many pupae of Diptera at first as- 



sume under the skin of the larva. (Ibid.) Vol. III. 

 p. 235. 

 3. The same when the parts begin to show themselves. 

 (Ibid.) 



5. Cocoon of Satumia pavonia. a. Pupa. b. Threads that 



close the orifice. Vol. III. p. 217, 279. 



6. Loose and irregular ditto, of Arctia villica. Ibid. p. 220. 



7. Boatshaped ditto, of Tortrix prasinana. Ibid. p. 221. 



8. Network ditto, attached to the stalk of a plant. 



9. Ditto, imitating the scales of fish. (Reaum.) Vol. I. 



p. 462. 



10. Spiral case of Trichopterous larva, formed of pieces of 



leaf. (De Geer.) 



11. Grate spun by these larvae to prevent ingress. (Ibid.) 



Vol. II. p. 264. 



12. Chilopodimorphous larva of Melolontha vulgaris. Vol. 



III. p. 163. 



13. Araneidiform ? ditto of Cicindela campestris. Ibid. 152, 



163. 



PLATE XVIII." 



]. Anoplurimorphous larva. Chrysomela Populi. a. Osmct* 

 teria, or scent organs. Vol. II. p. 245. III. p. 163, 166. 



a Ubi iupr. " Vol. III. Letter XXXI. 



VOL. III. 3 B 



