South African Higher Myoclarii (Dipt era Calyptratae). 475 



tion of antennae are noticeable. The upper occiput is without small 

 black setae ; but the surface of the peristome bears long setae. Thorax 

 black, with 4 dark bauds and 3 dc. ; scutellum and shoulders testaceous, 

 a band of this colour surrounds the terguin except in front. Sterno- 

 pleural = 2 + 1 ; pteropleural, as developed as the anterior and inferior 

 sternopleural. Abdomen moderately wide, dark red testaceous obscured 

 by a weak ashy pruinose down, bands with whitish or obscure sheen 

 according to the light ; segments 2 and 3 with a pair of discal ; strong 

 marginal setae are visible on the medio-ventral region of all the 

 segments. Legs black with the tibiae partly testaceous. Wings 

 hardly tinged with grey ; 3rd nervure with 5-6 ciliae at the base, the 

 transverse posterior nervure, inserted very near the cubitus of the 

 4th, is arcuate at the base only, then straight and reclining in the 

 prolongation of the apical uervure. Squamae whitish ; halteres 

 testaceous. 



Length 13'5 mm. 



GEN. STOMATOMYA Villen. 



STOMATOMYA METALLICA, n. sp. 



Resembles wonderfully Cam/iylochaeta ylauca Karsch. = metallica 

 Bez. Differs by the long claws of the anterior legs in the $ , the long, 

 crossed, more or less erect setae of the scutellum, and by the wings 

 provided with a costal spine and having an appendage to the cubitus 

 of the 4th nervure. The coloration is metallic-blue mingled with 

 violet ; wings hyaline, squamae white, halteres dark, testaceous at 

 base ; legs wholly black. 



The chaetotaxy is the same as in Campylochaeta glauca ; there are 

 no ciliae where the frontal setae end, and the pair of discal setae on 

 the 2nd and 3rd abdominal segments are variable, and often mixed 

 with other small erect setae. The size is the same, the facies a little 

 more robust. 



Length 8-11 mm. 



Southern Ehodesia, Salisbury (Dept. of Agric.), bred from the 

 caterpillar of a ISToctuid moth of the genus Athetis ; Natal, Durban 

 (H. W. Bell-Marley) ; M'fongosi, Zululaud (W. E. Jones) ; S. Afric. 

 Museum. 



GEN. STUEMIA Bob. Desv. 



STUKMIA (CROSSOCOSMIA vix) AURIFKONS, n. sp. 

 There is in Africa a group of species in the $ $ of which the 

 pulvilli and claws are elongated (the latter are often truncate), the 



