( clxxxix ) 



Drosophila and the inheritance of small variations, the fruit-fly, xxii. 



Durban, the conspicuous C'atocaliue moth, Egybolis vail lantina,. seized and 

 dropped by a bird at, xxvii. 



Dynamine, new, exhibited, iii. 



Dytiscus marginalis, larval skins of, exhibited, clvii. 



'Egybolis vaillantina, seized and dropped by a bird at Durban, the conspicuous 

 Catocaline moth, xxvii. 



Epitola uremia, exhibited, xxiii. 



Ergatandromorph of Myrmica sulcinodis, exhibited, clvii. 



Essex Field Club, appeal re pension fund for Curator of, liv. 



Ethiopian species of Sarangesa and other Hesperidae, the habits of, xxvi. 



Eupithecia helveticata var. arceuthata and a living larva, exhibited, clix. 



Farqubarson, C. O., notice of death of, clxvii. 



Fellows, election of, i, xxxix, liv, lv, lxxvi, clxii, clxvii, clxx. 



Fiji, the Hymenoptera of, clxix, 334. 



Flatidae (Homoptera) from ex-German East Africa, bud-and-fiower-like, 

 exhibited, Ixxviii. 



French Guiana, species of Heliconius from, exhibited, clii ; in 1917, compared 

 with a similar collection made in 1915, notes on a large Heliconine col- 

 lection made in, clxvii, 347. 



Geuital tube in Coleoptera, notes on the ontogeny and morphology of the 

 male, civ, 223. 



Giantism in male bees, exhibited, lxvii. 



Glutophrissa epaphia and Phrissura sabjna distinguished by their scent-scales, 

 the males of, exhibited, clxx. 



Harpagomyia and other Diptera fed by Cremastogaster ants in S. Nigeria, 

 xxix. 



Heliconine collection made in French Guiana in 1917, compared with a similar 

 collection made in 1915, notes on a large, clxvii, 347. 



Heliconius from French Guiana, species of, exhibited, clii ; new sub-species of 

 //. erato, exhibited, clx. 



Hemaris from the New Forest, both species of, exhibited, civ. 



Hemiptera, ova of, exhibited, ii. 



Hesperid, butterflies of the genus Castnia and a mimetic, exhibited, clxiv. 



Hesperidae, the habits of Ethiopian species of Sarangesa and other, xxvi. 



Homoptera from ex-German East Africa, bud-and-flower-like Flatidae, exhi- 

 bited, Ixxviii, 



Honorary Fellow, election of, lv. 



Hymenoptera, Sesias mimics and not models of, xxix ; of Fiji, the, clxix, 

 334 



Hypolimnas (Evralia) dubia f. wahlbergi at rest in same spot after a week's 

 interval, xxiii. 



Isle of Wight, Musca autumnalis hibernating in aloft in the, exhibited, xxii. 



Ithomiiue butterflies and rare Dioptid moth, mimetic association of, exhi- 

 bited, 1. 



Java, wasps' and ants' nests from, exhibited, li. 



Jugo-frenate genera of Micropterygidae, liii. 



Lamborn with the East African Veterinary Corps in 1916, journeys of Capt. 

 W. A., xl. 



Larva of Eupithecia helveticata var. arceuthata, exhibited, clix. 



