ADAMS: DIPTERA AFRICANA. 159 



LONCHOPTERID^. 



LONCHOPTERA. 



(Meigen, Illig. Mag., II, 272; 1803.) 



Lonchoptera africana, n. sp. 



Female : Head yellow ; ocellar dot black ; besides the ocellar 

 and a pair of verticals there is a pair of backwardly curvincr 

 bristles centrally on anterior part of front; antennae yellow, 

 first and second joints with a circle of black bristles apicallj, 

 tip of third joint, with the arista, black ; mouth-parts yellow, 

 oral margin bearing several strong black bristles ; a few bristles 

 along posterior orbits white. Thorax reddish yellow ; mesono- 

 tum with a median longitudinal black stripe, and the lateral 

 margins likewise of the same color ; two small humeral, one 

 posthumeral, one notopleural and six dorsocentral bristles on 

 each side ; the latter are placed in two rows, with a single 

 bristle placed between them ; the inner row has three and the 

 outer has two ; scutellum with a median black line, and an apical 

 pair of bristles ; pleura? and halteres yellow. Abdomen yellow, 

 with a broad, dorsal, longitudinal band and the narrow lateral 

 margins blackish. Legs yellow, the anterior tarsi wholly and 

 the last joint of the remaining tarsi black. Wings hyaline, with 

 a faint yellowish tinge; venation normal. Length, 3.2 mm. 



One specimen; April. Close to L. lutea Panz., but differs 

 principally in the coloration of antennae and the lateral margins 

 of the mesonotum and abdomen. 



PHORIDiE. 



Aphioch.eta. 



(Brues, Monograph of the North American Phoridse, 337.) 



Aphiochseta ? n. sp.? 



An imperfect female specimen which I believe belongs to this 

 genus, and also to represent a new species, but the four posterior 

 legs are gone ; so I cannot speak with certainty for either case. 

 The front is brownish black, subopaque, with only one pair of 

 proclinate bristles on anterior part, otherwise its chcrtotaxy is 

 normal ; antennae, face and mouth-parts are yellowish, arista 

 pubescent. Thorax yellow, one posthumeral, three small 

 bristles just in front of base of wing, and one dorsocentral on 

 each side ; scutellum with a single pair of bristles ; halteres 

 yellow. Abdomen reddish yellow, ovipositor black, subopaque. 



