10. 
11. 
12. 
13. 
14. 
16. 
17. 
1. Prospherysa zemulans, sp. n., 3 2. 
PROSPHERYSA. 
. Cheeks with a row of bristles near the eyes, or at least with 
some hairs . . an . 
Cheeks without bristles or hairs near the eyes . 
. The bristles on the cheeks as long and stout as the frontal 
and facial bristles . . . . oo 
The bristles on the cheeks weaker and shorter ‘than the 
frontal and facial bristles, or reduced to some hairs . . 
. Hind tibize outwardly fringed with short bristles, and with 
a longer bristle below the middle . . . . . 5s + 
Hind tibize with several bristles of unequal length. . . , 
Head yellowish, with brown reflections . . . .. =. . 
Head white ... . rr rr 
Elongate species (first abdominal segment as long as the 
second) . . ... - oe os 8 8 
Ovate species (first abdominal segment nsually shorter than 
the following segment) . . . .. . a er 
Apical and posterior cross-veins in the usual oblique direction 
Apical and posterior cross-veins, or at least the latter, very 
oblique . 2. 1 6 ee ee ee eee 
Anal segment yellowish-rufous . . . 2. . . « - 
Anal segment grey or blackish 
Apical and posterior cross-veins straight. . . . . - 
Apical cross-vein concave, the posterior slightly curved or 
stripe 
. Frontal band very narrow, nearly linear . 
Frontal band as broad as the lateral portions, or ‘but little 
narrower. . - oe ew 
Base of the antennz and frontal band rufous . ..- + 
Antenne and frontal band black ee 
Posterior cross-vein in the same oblique direction as the 
apical cross-vein re 
Posterior cross-vein wore oblique than the apical cross-vein. 
14; 14a, head in profile.) 
Cinereous ; frontal band, four thoracic stripes, antenne, and legs black; abdomen with blackish reflections, the 
anus rufous; wings with a costal spine, brownish on the costa and along the veins. 
Length 6-5-9 millim. 
Front as broad as the eyes, a little narrowed behind in the male; frontal band as broad as the lateral portions ; 
frontal bristles on each side in a single curved row, descending as far as the end of the second antennal 
joint ; face slightly retracted, the facial ridges with stout bristles. 
second joint with a longer and several very short bristles ; 
117 
8. 
11. 
crebra, v. d. Wulp. 
9. 
rufifrons, v. d. Wulp. 
10. 
vilis, v. d. Wulp. 
albifacies, v. d. Wulp. 
macilenta, v. d. Wulp. 
12. 
13. 
16. 
apicalis, v. d. Wulp. 
14. 
rectinervis, v. d. Wulp. 
15. 
minuta, v. d. Wulp. 
serotina, v. d. Wulp. 
parvipalpis, v. d. Wulp. 
17. 
balteata, v. d. Wulp. 
plagioides, v. d. Wulp. 
(Phospherysa emulans, Tab. III. figg. 
Antenne reaching to the vibrisse ; 
third joint five or six times as long as the 
second; arista pubescent, thickened to nearly half its length. Proboscis black, with the terminal lips 
more or less rufous; palpi black or dark rufous. 
dorsum with four black stripes, which are prolonged to near the posterior margin. 
Thorax and scutellum greyish-cinereous; thoracic 
Abdomen conical ; 
first segment black; the following segments irregularly variegated with black and grey reflections ; apical 
