38 ME. W. F. KIRBY OK GENERA AND SPECIES OF 
more distinct upon the tarsi ; hind femora armed with three large 
obtuse teeth ; wings hyaline, with two brown bands. 
1 lab. Kassala ( Magretti ). 
Allied to Halticella liberator , "Walk., from Natal. 
In describing the genus Stomatoceras, I stated that the meta- 
thorax was unarmed. In the two species here described it is 
armed with two strong teeth on each side ; and I should expect 
to find this to be the case in well-preserved specimens of the 
previously described species of the genus. 
6. Stomatoceras diyersicornis. (PI. I. fig. 8.) 
Long. corp. 4 millim. 
Female. Closely allied to S. Magrettii, of which at first I regarded 
it as only a small variety. Black, variolose, silvery pubescence 
very slight ; scape of antennae and joints 2, 3, 4, and 11 wholly red ; 
the joints longer and slenderer in proportion than in S. Magrettii ; 
four front femora black ; tibiae and tarsi red, the former with a 
black streak on the inner side ; hind femora black and shining, the 
middle tooth distinct, the others merely undulations ; a small 
red spot at the base ; hind tibiae black, red at the tip, hind tarsi 
red ; all the claws black ; tegulae black ; wings hyaline, fore wings 
with two brown bands ; abdomen reddish beneath, along the 
sheath of the stylus, which is comparatively short ; metathorax 
with two strong teeth on each side. 
1 lab. Kassala {Magretti). 
7 . Chalcis Kassaleksis. (PI. I. fig. 9.) 
Long. corp. 5 millim. 
Male. Black ; head, thorax, and scutellum moderately closely 
variolose, each pit with a setigerous depression in the centre; the 
interspaces finely punctured ; abdomen very finely reticulose ; 
scutellum edged behind with silvery-white hairs ; lower orbits, 
cheeks, pleurae, terminal abdominal segments, and coxae more or 
less clothed with silvery-white pubescence (antennae wanting) ; 
tegulae ivory-white ; coxae black ; four front femora black, tipped 
with white ; four front tibiae white, with a short black line on the 
inner side ; all the tarsi white, with the claws black ; hind femora 
thickened, denticulated beneath, red, with a large white spot at 
the tip ; hind tibiae white, with a reddish-brown ring at the base ; 
wings hyaline. 
Iiab. Kassala {Magretti). 
Allied to C. amenocles and C. restituta, Walk. 
