92 Ins. 
XIII. INSECTA. 
[ 1905 ] 
3. Development. (See also 1 g, Physiology.) 
Reproduction of A phis, Stevens (1449). 
Germ-layers, recent literature, Heymons (744). 
Blastoderm formation, Polistes, Marshall & Dernehl (1012). 
( Polyembryony, account of Marchal’s paper of last year, Bugnion (215). 
Germinogony, and larval dimorphism, Silvestri (1393). 
Yolk-cells, entoblast, earliest processes, origin of sex-cells, embryonic 
membranes, Lepidoptera , EndromiSy etc., Schwangart (1367). 
Embryology of Machilis , proamnion and proserosa, Heymons (745). 
Development of alimentary canal, Bombyx mori , Verson (1544). 
Unfolding wings, AEschnay East (488). 
Anomalies in the metamorphosis of Lepidoptera , Trost, Mt. Ver. 
Steiermark xli, pp. lxviii-lxx. 
Hypermetamorphosis, Lebia , Silvestri (1398). 
Relation of larval and imaginal leg, Lev ., Girault (665). 
Temperature in development of ants, fasting, Fielde (560). 
Larval stages of Heteroptera , Kuhlgatz (898). 
4. General Subjects. 
Variation and Teratology. 
Poecilogony, Giard (651). 
Geographical variation, examples and importance of, Jordan (822). 
Variation in genitalia of Lep ., not correlative with other variation, but 
corr. with geographical wing variation, Jordan, p. xxxiv, P. ent. Soc. 
London 1905. 
Variation of £ genitalia, Hadena adusta , Petersen (1156). 
Influence of summers, 1903, 1904, on colour of Insects, Simroth (1401). 
Origin of variations, Cockerell (358). 
Physiology of variation, experiments with carbonic acid and oxygen, on 
Lep. pupae, Linden (958-964). — Experiments ’ as to food and moisture, 
Pictet (1198), Merrifield (1033). 
Worker ants, with wing- vestiges, Wheeler (1625). 
Variation of Abraxas due to food, Colling e (359)! 
. Melanism and its origin, Morley & Tutt (1066). 
. Forms of Carabus , Hormuzaki (761). — Variation of £ characters, 
CarabuSy Born (147) — Variation of Carabus morbillosusy Born (146). 
Variation in Hydrophilus piceus, measurements etc., Perazzo (1145). 
Variation of ^ Lucanidce , general discussion, Griffini (692, 693). 
Polymorphism of $ (poecilogony) Malthodes , Bourgeois (165). 
Variation and correlation, honey-bee, Phillips (1165). 
Variation of colour and pattern, Polistos , Enteman (518). 
Variation in Dorylus , Emery (495). 
Variation of Bombi , Hoffer, Mt. Ver. Steiermark xli, pp. lxv-lxvii. 
Variation wing-nervures, Tenthredin idee, Loiselle (971). 
Melanotic females of Rhopalocera, Slevogt, p. 81, Soc. ent. xx. 
Aberrations, 25, of European Lep ., Frings, pp. 139, 140, Soc. ent. xx. 
Italian varr. of Lep ., described and figured, Perlini (1148). 
Variations of European Lep. (additional ocellate marks), Oberthur 
(1113). 
Papilio turnus , dimorphism and food, Jeheber (819). 
Variation of Melitcea aurinia } Kitchin (864). 
Measurements, Pieris brassicce 1905, Auel (39). • » 
Var. in wing-length, Aporia, Aigner-Abafi (12). 
Aporia cratvegi melanic var., Rebel, p. 273, Verb. Ges. Wien 1905. 
