Séance du 22 Octobre 1924 
347 
16.V.1923; cT Wadi Hoff 1 4 - 1 V.1921; cf Wadi Hoff 
io. III. 1922; cf Wadi Lîm-Elek 21. III. 1924. 
Prof. Hermnan used the name Lophonotus Macq. 
el Lw. and subgenera in an analytical table of the 
Asilinae orbis terrarum which remained unfinished 
and unpublished, nevertheless we need a name for a 
group of robber flies, especially of African origin, 
that differ in both sexes from Dvsmachus of which 
the old genus Lophonotus was till now a synonym. 
As the name Lophonotus is preoccupied, I propose to 
change it into Neolophonotus nomen novum and give 
here the principle differences between the two ge¬ 
nera : 
Neolophonotus nom. nov. Dysmachus Lw. 
No facial hump, (in subgen. 
Dasophrys Lw. only a mo¬ 
derate swelling on the face). 
Bristles on lateral calli of me- 
tanotum (above base of hal¬ 
tères) absent. 
Scutellum with numerous 
marginal bristles and dense, 
long hairs on surface. 
Anal lamellae of 9 free, con¬ 
sisting either of two oval 
cerei, (Fig. 1) united in Baso, 
phrys Lw. to a roof-like la¬ 
mella (Fig. 2), or of two- 
pointed cerei, clasped against 
each other, so that the ovi¬ 
positor appears one-pointed 
(Fig. 3); or the last tergite of 
abdomen is drawn out into 
two spine - like processes 
(Fig. 4). 
A pronounced facial hump. 
Bristles or hairs on lateral 
calli of metanotum always 
present. 
Scutellum with only two to 
six marginal bristles and gen¬ 
erally without such hairs on 
surface. 
Anal lamellae of 9 generally 
inserted into a cleft of ter¬ 
gite (Fig. 5). 
