BIOLOGY. 
Ins . 89 
Ocelli, development of in Periplaneta and Cloeon , Reitzenstein (1157). 
Development of wings, specially of Coleoptera , Powell (1104). 
Development of rostrum of Rhynclophora, McClenahan (930). 
Head-shield, Lep. pupa, Haverhorst (666). 
Development of Aphis ribis, embryonic and post-embr., Flogel (519). 
Parthenogenetic development, Nematus , Doncaster (402). 
Central nervous system, post-embryonic changes, Bauer (93). 
Embryology of mesenteron, Meloe, Czerski (340). 
Metamorphosis of alimentary canal, Deegener (358). 
Irregular metamorphosis, Charaxes , retention of larval head, Chretien, 
p. 108, Bull. Soc. ent. France 1904. 
Intracellular histolysis, Muscida, P^rez (1020). 
Muscle, histolysis, Muscidce , P£rez (1019) 
Ecdysis. See glands. 
4. General Subjects. 
Variation and Teratology. 
Physiological distinction of forms of variation, metabolism, von Linden 
(881). < 
Statistical and general discussion of variation in 24 species of various 
Orders, Kellogg & Bell (783). 
^Etiology of variation, Lep ., Rowland-Brown, p. 17, Entomologist 
1904. 
Sexual variation in Pselaphidoe , Peyerimhoff (1043). 
Variation in size, Lepidoptera, wing, Auel (56). 
Variation in length of wing, Aporia cratcegi , Bachmetjew (72). 
Moisture ard Lepidopterous variation, Pictet (1081). 
Seasonal forms in Rhopalocera , Butler (209). — Seasonal phases, Cal- 
lidryades , Butler (208). 
Melanie varr. in E. Tibet, Oberthur, p. 174, Bull. Soc. ent. France 
1904. 
Rhopalocera , 18 varr. of European, Schultz, Soc. ent. xix, p. 9. 
Varr. of European Rhop ., specially Tuscan, Verity (1436). 
Varr. of European Lepidoptera , Oberthur (987). 
Varr. of Belgian Lep., Haverkampf (667). 
45 aberrations of exotic Rhopalocera , Lathy (858). 
Varr. of Parnassim , Schultz (1248). 
Variation of Lyccena ly simon, Graves, p. 51, Ent. Rec. xvi. 
Heodes phlceas variation, Chapman, pp. 167-172, Ent. Rec. xvi. 
Variation in number of spots, Epinephele , and damp seasons, Bachmet- 
jew (71). 
Varr. of Epinephele tithonus , Russell, p. 125, cuts, Entomologist 1904. 
Variation of Basilarchia proserpina and allies, Field (499). 
Variation of Ilypolimnas bolina in Fiji and Samoa, Waterhouse 
(1492). ’ ’ 
L. cegeria, Guernsey var., Luff, p. 190, Rep. Guernsey Soc. 1903. 
Variation of larva of Deilephila lineata livornica , Giard, p. 204, Bull. 
Soc. ent. France 1904. 
Variation in Philosamia, fitness, Crampton (324). 
Zygcena fausta and hippocrepidis , copula and variation, Dupuy, pp. 11, 
12, Feuille Natural, xxxv. 
Catocala nupta , blue var., Smits, p. 128, Feuille Natural, xxxiv. 
Different melanic forms of Venusia in Yorkshire, Porritt, p. 377, 
Naturalist 1904. 
Variation in Larentiidce , Prout (1108). 
Variation of Eupithecia, Dietze (380). 
