Lis. 199 
(b.) iiymen of tee a, 
Labrum of ; Chatin (120). — Labium; Chatin (119). — Wing-neuration 
of ; Redtenbacher (581, pp. "221-225, pi. xx, pt.). — Dimorphic and apter- 
ous males; Emery (166). — Heart of Bonibus and Qimbex ; Poletajewa 
(531). — Blood-tissues ; Wielowiejski (736, pp. 530-533). — Spermatozoa ; 
Gilson (243). — Development of egg; Korschelt (369, pp. 580-588); 
Blochmann (57), Stuhlmann (690). 
A CUBE AT A. 
[Cf. Andr6 (7), Aurivillius (19), Blackburn & Cameron (55), Blake 
(56), Blochmann (58, 59), Bos (73), Brent (79), Breithaupt (80), Cameron 
(107), Cheshire (121), Costa (129, 130, 132), Douglas (149), Emery (168, 
170), Forel (203-209), Haacke (264), Hennessy (283), Hess (285), Hotter 
(294), Holmberg (298, 299), Jhering (333), Kohl (358), Lampert (387), 
Magretti (419), Mayr (429, 431, 432), Morawitz (468, 469), Mitllenhoff 
(471), Nicolas (486, 487), Perez (527), Radoszkowski (574, 575), Schmioden- 
knecht (637), Schulthess (644), Smith (668) ; and, for Bee-keeping books, 
Economic, p. 98.] 
Instances of abnormal neuration ; Saunders, Ent. M. M. xxii, p. 185. 
Apidjj. 
Apis mellifica , general information on ; Cheshire (121). Moewes gives 
abstract of Curley’s views on differentiation of the sexes of the bee ; 
Biol. Centralbl. v, pp. 717-719. A. indica, florea, and other Indian hive- 
bees, noticed ; Douglas (149). A. dorsata, early Greek nomenclature ; 
Ball, (23) p. 330. 
Bo mbus and Mutilla ; Hotter (294). Bonibus , memory in ; Hotter 
(293) : a nocturnal species of ; Ent. Nachr. xii, pp. Ill & 141, and Doria 
Nature, xxxiii, p. 392, also t. c. p. 487. B. terrestris,. successful acclimati- 
zation in New Zealand; P. E. Soc. 1886, p. xxxiii. Heterotrophy in B. 
gerstaeclceri , length of proboscis in various species of Bombus , habits, &c., 
noticed; Dalla Torre (134). B. xanthopus, Kriechb., sexes described ; 
Schulth., MT. schw. ent. Gos. vii, p. 272. B. corsicus , Corsica, id. t. c. 
p. 274; B. supremus, p. 196, roborowshyi , p. 197, semenovi , p. 198, lceri- 
ensis, p. 199, tanguticus , p. 200, Thibet, B. maacki (n. n. for B. usswiensis, 
Mor., Mel. Biol, xi, p. 127), p. 197, Mor., Hor. Ent. Ross, xx : n. spp. 
Psithyrus perezi, Corsica, Schulth., MT. schw. ent. Ges. vii, p. 275, 
n. sp. 
Apathus tibetanus , Thibet, Mor., Hor. Ent. Ross, xx, p. 202, n. sp. 
