( xvii ) 



of Liparidce, except Denias, in which hoth are absent, and 

 Dasychira, which only possesses the posterior gland. The 

 ventral glands of Croesus were figured, showing the retractor 

 muscle. 



" 6. Mai-kings on larva before pupation. — Markings were 

 described upon the 2nd and 3rd thoracic segments, imme- 

 diately over the pupal wings, which are being formed beneath. 

 In G. libatrix the markings were shown by figures to be 

 black and very distinct. Sections proved that the black 

 pigment was in the superficial layer of the cuticle, which 

 therefore is not beyond the reach of such physiological pro- 

 cesses as are implied by its deposition at so late a period 

 of larval life. 



"7. Notes on Paniscus cephalotes. — It was shown that the 

 pupal stage lasts for about a month ; that the imagos may 

 emerge at the time when the young D. vinula larvae (which 

 they often attack) are hatched. One imago was seen to 

 attack a larva (of T. gothica) with its mandibles as though it 

 were in want of animal food. The position of the eggs of this 

 species on three larva? of D. vinula was described, together with 

 the experiments in which all the eggs but one were removed 

 in the case of each larva ; the remaining egg producing a 

 larva which attained an enormous size. An error in the 

 description of the egg made by Mr. Poulton (last year) was 

 corrected. 



"8. A covering for the eyes of the imago of (r. libatrix. — 

 A tuft of hair was described upon the basal part of the 

 antenna?, which covers the eyes in the protective attitude of 

 resemblance to a dead withered leaf. Thus the brilliancy of 

 these organs does not render the insect conspicuous. It was 

 also considered probable that the tuft of hairs may act as a 

 defence. 



" 9. The late emergence of female moths from the pupa. — It 

 was suggested that this very generally observed fact was of 

 value to the species in securing competition among the 

 males for the females as they emerge, instead of a success 

 merely determined by emergence at an appropriate time. 



" 10. Hereditary transmission of pink tubercles in the larva of 

 S. carpini. — Dr. Dixey obtained eighty larva? in 1885, of 



PROC. ENT. SOC. LOND., 1887. I> 



