12 SYRPHID. 
with minute, short, whitish hair; antenne reddish yellow, the 
third joint rather broad, hatchet-like, with the upper border 
darkened throughout its whole length; arista inserted near the 
base, black and bare ; opening of buccal cavity rather broad, but 
short and almost Grou Thorax shining black, somewhat 
purplish in the male, finely punctate, clothed in the male with 
dense and long silvery hair as in paule@, and with similar but 
sparser hair on the sit in the female the thorax is only 
thinly covered with short hair, and is adorned with two distant 
white stripes on the fore part. Squamule and halteres whitish, 
those of the male pure white, the squamule white - fringed. 
Scutellum shining black, bluish in the male, clothed with erect 
grey hair, the hind border broad, elevated, and bearing very long 
black spines, less numerous but stronger than in Paragus serratus. 
Abdomen as broad as the thorax, with parallel sides, black, but in 
the male at the base with a bluish and at the tip with a purplish 
sheen; the white lunule of the second to the fourth segments are 
well marked, but small, very oblique, and widely separated in the 
middle ; hair very short, only at base long and whitish; genitalia 
of male of the type of those of pavle, but not so prominent. 
Legs shining black, with white hair; all the tibize at base and the 
tarsi pale yellow: hind tarsi strong, broad, infuscated, with a 
yellowish ring at the end of each joint ; hind femora simple, not 
thickened, bearing only a few strong bristles below near the tip ; 
hind tibiz strong, club-shaped, those of male with distinct but not 
dense silvery pubescence, which is wanting on the proximal two- 
thirds of the first basal joint. Wings entirely hyaline, strongly 
iridescent, with black veins, but less distinct vena spuria; stigma 
hardly infuscated at base ; the two outward bends of the apical 
cross-vein each bear an appendix. 
Type 3 and type 2 from Salisbury, Mashonaland (G. A. A. 
Marshall). The female ean sca arcely be distinguished from that 
of preceding species, except by its smaller size and darker wings. 
119. Eumerus maculipennis, sp. n. 
®. Length of the body 5°5 to 6 mm. 
Allied to the two preceding species, but at once distinguished by 
the yellow spots on the second abdominal segment and the infus- 
cations of the wings. 
As I have seen only females, which are very like those of 
serratus, L will here simply state the differences. The size is a 
little larger; the scutellar spines are less prominent; the second 
abdominal segment, instead of the usual lunules, bears on each 
side a broad yellow spot, which forms a transverse band, interrupted 
in the middle and not reaching the sides. Wings with yellow 
stigma and distinct vena spuria ; the infuscations are on the small 
eross-vein, at the prefurea, and on the two apical cross- veins. 
Type 2 and two en Set al specimens from Oshogbo, 8. Nigeria, 
x.—x1i. 1910 ( DY ns bay Mayer) 
