SO SYRPIUID#. 
the femora broadly yellow towards 
the base: .'y.:. . 12. Gg PPOs Slee? Shivers ape 
22 (15) Second abdominal segment with a 
broad black fore border, which is 
usually united with the hind border 
in the middle line, the first yellow 
band consequently interrupted in the 
middle; hind femora quite black ; 
all the tarsi black at the tips. 
23 (24) yes with a few well-separated black 
spots; sides of face wholly dull, 
densely covered with pollen ; thorax 
on the back entirely dull ......... . dulcis, Karsch. 
24 (23) Eyes with very numerous, partly con- 
fluent, black spots; sides of face a 
little shining, the black colour of the 
ground being distinct; dorsum of 
thorax distinctly shining on the pos- 
terior half’. 7 RV Yes. sae MBS Tees AIA. 
Lathyrophthalmus modestus, Wiedemann (1818). 
Very distinct from any other species of the present genus on 
account of its bare eyes, which are broadly separated in the male, 
and of its thorax, which is without any distinct pattern on the 
back. 
Originally described from South Africa as a [Helophilus, 1 think 
that this is the species subsequently described by Macquart as 
Evristalis analis; Adams has recorded the latter species from 
Rhodesia, but, from his description of the thorax and fourth abdo- 
inal segment, it appears more probable that he had the species 
imnytatropinus before him. 
The genitalia of the male are very characteristic; they are 
globose, shining reddish black ; the fourth ventral seoment ter- 
minates below in a long appendage, which is deeply incised in the 
middle, appearing pilobeake the third ventral segment is also pro- 
duced in the middle, but not bilobed. ‘The yellow band on the 
second abdominal segment is often divided in the middle, chiefly 
in the female, the anterior black band being united with that on 
the hind border. 
A male from Deelfontein, Cape of Good Hope (Surg.-Gen. Sir 
A. T. Sloggett); another male from the Cape of Good Hope, without 
precise locality ; a female from the Cape of Good Hope ( phage ke 
by Rev. A. ie Haton). A small female from Stellenbosch, Cape 
of Good Hope, xi. 1904 (G. A. K. Marshall), is only 10 mm. long, 
and has the yellow hind borders to the segments a little broader 
than usual; the eyes have no distinct spots, but the specimen is 
greasy ; I have a very similar female from Willowmore, Cape of 
Good Hope, in which the spots on the eyes are as usual very 
distinct. 
