ENTOMOLOGY 981 
by the agency of man. In Africa the genus is unusually well represented by the 
following eighteen species: 
1. S. bilineata Grinberg, 1906, Zoolog. Anzeiger, XXX, p. 89 ( 2; Tanganyika Territory). 
Stein (1909, Tijdschr. v. Entom., LII, p. 218) regards this as possibly identical with S. brunnipes 
Grinberg. 
2. S. bowett Roubaud. See below. 
3. S. bouffardi Picard, 1907, Bull. Soc. Ent. France, p. 27 ( ¢ &; Bamako, French Sudan). 
According to Austen, this species is unrecognizable. 
4. S, bowviert Roubaud. See below. 
5. S. brunnipes Griinberg. See below. 
6. S. calcitrans (Linnaeus). See below. 
7. S. hovas Brauer, 1899, Sitzungsber. Ak. Wiss. Wien, Math.-Naturw. Cl., CVIII, p. 517 
(9; Madagascar; based upon S. geniculatus Bigot, 1859, Ann. Soc. Ent. France, (3) VII, p. 537; 
not of Macquart, 1845). 
8. S. inornata Griinberg. See below. 
9. S. nigra Macquart. See below. 
10. S. ochrosoma Speiser. See below. 
11. S. omega Newstead. See below. 
12. S. pallida Roubaud, 1911, Bull. Soc. Path. Exot., Paris, IV, p. 125 ( 9 7; Agouagon, 
Dahomey). 
13. S. rhodainica Roubaud. See below. 
14. S. sexvittata Roubaud, 1911, Bull. Soc. Path. Exot., Paris, IV, p. 396 ( 9 @; banks of the 
Niger, between Rarimama and Niamey, French Sudan). 
15. S. sitiens Rondani, 1873, Ann. Mus. Civ. Genova, IV, p. 288 («; Keren, Abyssinia). 
This is rather doubtfully distinct from S. brunnipes Grinberg. 
16. S. taeniata Bigot. See below. 
17. S. transvittata Villeneuve, 1916, Ann. South African Mus., XV, p. 453 (9; Durban, 
Natal). 
18. S. varipes Bezzi. See below. 
Although the species of Stomoxys are fierce blood-suckers, both sexes, even 
of S. calcitrans, are occasionally found visiting flowers. In the Belgian Congo 
I have noted that various species are particularly fond of the sweet droplets 
excreted by the nectaries at the base of the leaf-blade of Urena lobata Linnaeus 
var. reticulata Guerke, a common malvaceous weed of tropical Africa (J. Bequaert, 
Eis, Rev. Zool. Afric., II, p. 3). 
Stomoxys calcitrans (Linnaeus) 
Conops calcitrans Linnaeus, 1758, ‘Syst. Nat.’, 10th ed., I, p. 604 (no sex given; on cattle; without 
locality). 
Stomoxys calcitrans Geoffroy, 1764, ‘Hist. Abrégée des Insectes,’ IT, p. 539, Pl. XVIII, fig. 2. 
Griinberg, 1906, Zoolog. Anzeiger, XXX, p. 87 ( 2 @); 1907, ‘Die Blutsaugenden Dipteren,’ 
p. 157, fig. 114 (9). Newstead, Dutton and Todd, 1907, Ann. Trop. Med. Paras., I, p. 75. 
Austen, 1909, ‘Illustr. African Blood-Suck. Flies,’ p. 142, Pl. XIII, fig. 102 (¢). J. Bequaert, 
1913, Rev. Zool. Afric., III, p. 1. Bezzi, 1911, Arch. de Parasitologie, XV, pp. 124 and 138. 
Roubaud and Van Saceghem, 1916, Bull. Soc. Path. Exot., Paris, IX, p. 766. 
Musca pungens de Geer, 1776, ‘Mém. pour Servir 4 l’Hist. des Ins.,’ VI, p. 78, Pl. IV, figs. 12-18 
(Europe). 
Stomoxys tessellata Fabricius, 1794, ‘Ent. Syst.,’ IV, p. 895 (Kiel, Germany). 
Stomoxys geniculata Macquart, 1845, ‘Dipt. Exot.,’ Suppl. I, p. 192 ( ¢; Brazil). 
Stomoxys nebulosa Fabricius, 1805, ‘Syst. Anthat.,’ p. 282 (Antilles). Berg, 1899, Comunic. Mus. 
Nac. Buenos Aires, I, 4, p. 124. 
Stomoxis pungens Robineau-Desvoidy, 1830, ‘Essai sur les Myodaires,’ p. 386 (La Rochelle, France). 
Stomoxis sugillatrix Robineau-Desvoidy, 1830, loc. cit., p. 386 (Brazil). 
Stomoxis aculeata Robineau-Desvoidy, 18380, loc. cit., p. 386 (France). 
