235 
Genus Megarhinus. 
green, on the costa and on the first two long veins are azure and 
black scales : venation typical. 
Length. —7*5 mm. 
Habitat. —Salisbury, Mashonaland (G. A. K. Marshall) (79). 
Time of capture. — June. 
Observations .—Described from a single £ only in nearly perfect 
condition. This is a very beautiful species, with a great play of 
colours, the golden abdominal scales appearing like burnished 
brass in some lights, orange or yellow in others ; the yellow 
caudal tuft and yellow body should separate it at once from other 
species. 
(In the figure, Plate VIII., the dark apical band to the second 
hind tarsal joint is too broad.) 
10. Megarhinus splenbens. Wiedemann. 
Culex splendens. Wiedemann. 
(Dipt Exot. p. 7, Wiedemann ; Zool. Mag. iii. 2, No. 1, Wiedemann ; Eeise 
de Novara. 31, Schiner; Dipt, de Mid. Sumatra, p. 8, Van der Wulp.) 
(Fig. 31, PI. VIII.) 
Thorax black, wirh metallic golden and green scales; 
pleurae black, densely white scaled. Abdomen metallic green at 
the base, purple posteriorly, with dense golden-orange caudal 
tuft and white hairs laterally. Legs brilliant golden and green, 
apices of the joints rich green, metatarsi and tarsi partly white. 
9 . Head brown, covered with pale green, blue and metallic 
coppery scales ; antennae brown, basal joint black with frosty 
tomentum around its summit; second joint about the same 
length as the third, with creamy golden scales; proboscis 
metallic black, with iridescent scales; mesothorax black, with 
golden, brown, metallic green and blue scales, particularly 
brilliant over the roots of the wings, bright golden and green 
near the scutellum, which is covered densely with broad golden 
scales; pleurae black, with dense flat shaggy white scales ; 
prothoracic lobes with pale green and metallic scales; scutellar 
bristles bright brown; there are also many long ones over the 
roots of the wings. 
Abdomen brilliant metallic green, the apical segment deep 
violet, traces of a golden line on either side, and the anterior 
segments golden-brown in the middle in some lights j sides of 
