PRISTALODES. 89 
third and fourth segments are sometimes reduced or wanting. 
The black band or spot on the frons of the female is usually br oad 
and intensely black, bat sometimes much reduced and less distinct. 
A good character of this species is the broad, shining black, upper 
eecipital border in the female. 
There are in the collection two males and eighteen females of 
the typical form: Obuasi, Ashanti, v.ix.1907 (Dr. W. AL. 
Graham): Sierra Leone Protectorate, Karina District, x.—xi. 1906 
_ he E. Arbuckle); $8. Nigeria, Oshogbo, ivi. 1910 (Dr. T. 
F. Mayer); Tbadan (Capt. Leslie) ; British East Africa, Kenia 
vines near Luchi River, 9. ii.1911 (7. J. Anderson); Nyasa- 
land, Zomba (Dir. ZS. Stannus); Durban, 8. 11. 1902 (2 Wu) 
Besides these there are three female specimens with only three 
bands on the eves, but typical in other respects, from Sierra Leone 
(J. Foxcroft) and from Obuasi, Ashanti, vii. 1907 (Dr. W. A. 
Grakam). A female from Entebbe, Uganda, 1. x. 1904, has three 
ocular bands, entirely black abdomen, and almost entirely black 
scutellum, with only the hind border yellow. Finally, three 
females, with three ocular bands, pale legs, and more or less yellowish 
peristoma and facial tubercle, from Zungeru, N. Nigeria, 9. ill. 
1911 (Dr. J. WS. Macfie) and Oshogbo, S. Nigeria, 1-11. 1911 
(Dr ii F. G. Mayer). 
Eristalodes barclayi, sp. n 
3 9. Length of the body 14-15 mm. 
A very distinet species, with 5-6 narrow ocular bands, sharply 
striped thorax, and facial tubercle and edges of buccal cavity wholly 
vellow. 
This rather large species recalls E. ten/ops, from which it is at 
once distinguished by the strongly striped thorax; it is also allied 
to E. macrops, Karsch, which has opaque thoracic stripes and a 
black facial tubercle ; it seems also to have some affinity with the 
Oriental EL. arvorum, Fabr., which has also a yellow facial tubercle, 
but has no bands on the eyes. 
Head black, covered with grey pollen on the occiput and yellowish- 
grey pollen on the frons and face ; occipital upper border in the 
female also pollinose, only narrowly shining near the eyes; lower 
orbits whitish grey ; vertical triangle of the male small, yellowish 
pollinose, with dark hairs; orbital Horiler almost bare; eyes in the 
male yellowish red, opaque below, purplish shining above, ‘and there 
with broader facets and long brown. hairs s; in the female the eyes 
are entirely opaque with very short hairs above; the dark bands 
are narrow and show a tendency to break up into spots, chiefly 
below, where they are attenuated ; there are also some black spots 
on the hind portion ; in the male the line of contact of the eyes is 
longer than the frontal triangle and twice as long as the vertical 
triangle ; frontal triangle of. the, male. rather. ail and convex, 
densely. yellowish poll nee, clothed with long dark hairs, which 
become paler near the antenne; there is sometimes a trace of a 
black median line, which becomes yellow above the base of the 
