88 
Psyche 
[June-Sept. 
Key to Species 
1. Palpi vestigial, not or barely visible from above beyond the anterior 
margin of the fronto-clypeus. Mediovertex nearly as long as or 
slightly longer than wide ; inner orbits narrower than the eye ; post- 
vertex as long as or slightly shorter than mediovertex. Scutellum with 
two pairs of apical bristles paradoxus. 
Palpi short, but distinctly protruding beyond the anterior margin of 
the fronto-clypeus on the head seen from above, nearly half as long 
as the fronto-clypeus 2. 
2. Mediovertex as wide as long or slightly wider ; inner orbits narrower 
than the eye ; postvertex nearly as long as or slightly shorter than 
mediovertex. Scutellum with two pairs of apical bristles. E. sepiaceus. 
Mediovertex longer than wide ; inner orbits as broad as or broader 
than the eye ; postvertex about half the length of mediovertex. Scu- 
tellum w T ith one pair of apical bristles E. Mnoculus. 
1. Ecliestypus paradoxus (Newstead). Fig. 1. 
Lipoptena paradoxa Newstead, 1907 (February), Ann. 
Trop. Med. Paras., I, p. 91, figs. 19-20 ( $ ; Kasongo, Bel- 
gian Congo; off Tragelaphus scriptus) . Austen, 1909, II- 
lustr. African Blood-Suck. Flies, p. 209. Bezzi, 1916, Natura, 
Riv. Sc. Nat., VII, p. 178. 
Echestypus paradoxus D. Bruce, Hamerton, Mackie and 
Lady Bruce, 1911, Rept. Sleeping Sickn. Comm. Roy. Soc., 
XI, p. 228. C. W. Howard, 1912, Bull. Ent. Res., Ill, p. 218. 
S. A. Neave, 1912, Bull. Ent. Res., Ill, pp. 311, 314, 315, 
320 and 322. Mason, 1916, Ann. Rept. Dept. Agric. Nyasa- 
land for 1915-16, p. 19. Anderson, 1924, Kenya Med. Jl., 
Suppl. No. 1, p. 9, and Suppl. No. 2, p. 4. Bedford, 1927, 
11th and 12th Repts. Dir. Vet. Res. South Africa, I, pp. 300 
and 782. Ferris, 1930, Parasitology, XXII, pt. 3, p. 278, 
figs. 3 and 4 A-C ( $ 8 ) . Bedford, 1932, 18th Rept. Dir. 
Vet. Serv. An. Ind. South Africa, p. 421. Cuthbertson, 1937, 
Proc. Trans. Rhodesia Scientif. Assoc., XXXV, pt. 1, p. 33. 
Eschestypus paradoxus Curson, 1928, South Afric. Jl. 
Nat. Hist., VI, pt. 3, p. 182. 
Echestypus parvipalpis Speiser, 1907, Wiss. Ergebn. 
Schwed. Zool. Exped. Kilimandjaro, II, pt. 10, pp. 3 and 5 
( ? $ ; Mt. Kilimanjaro, Tanganyika Territory; off Tragela- 
phus scriptus roualeyni) . Austen, 1909, Illustr. African 
Blood-Suck. Flies, p. 202. S. A. Neave, 1912, Bull. Ent. Res., 
Ill, p. 317. Morstatt, 1913, Der Pflanzer, IX, p. 509. Bezzi, 
