FOUR NEW AFRICAN GALL MIDGES. 49^ 



the somewhat divergent lobes roundly triang-ular. Ventral 

 plate rather long, deeply and roundly emargiuate, the lobes- 

 rather long, stout, tapering. Type Cecid. 1808. 



Xenhormomyia natalensis ii. s^h 



The large female described below was labelled " C. Aker- 

 man, Maritzburg." This insect may prove to be the female 

 of Xenhormomyia africana described above, though it 

 presents some distinct structural differences. The type is 

 deposited in the Natal Museum, Pieter maritzburg, Natal, 

 South Africa. 



Female. — Length 7 mm. Antennae about as long as the 

 body, sparsely haired, light brown, 14 segments, the 1st 

 with a length about twice its diameter, the 2nd disc-like,, 

 the flagellate cylindrical, the 3rd and 4th free, the 5th with 

 a length about 5 times its diameter, and with very in-egnlar,. 

 low sinuous circumfila from near the base to the tip of 

 the segment. Terminal segment cylindrical with a length 

 about 5 times its diameter and apically a rudimentary, 

 fusiform 15th segment with a length about ^ the preceding. 

 Palpi, 1st segment broadly oval, 2nd with a length about 

 3 times its diameter, the 3rd as long as the 2nd, more 

 slender, the 4th ^ longer than the 3rd, more slender and 

 somewhat distorted near the middle. Mesonotum reddish- 

 brown. Scutellum yellowish-brown, postscutellum a little 

 darker. Abdomen dark reddish- brown, wings hyaline ;. 

 costa reddish-brown, heavily chitinised basally, and near the 

 basal fifth of the wing there is on its posterior margin a 

 curved spur-like chitinised process. Subcosta uniting with 

 the margin at the basal third, the 3rd vein apparently 

 arising from the distal 4th of subcosta joins the margin, 

 at the apex of the wing, the 5th at the distal fourth, its 

 branch at the distal third. Halteres yellowish basally, 

 reddish-brown apically, coxa3 and legs mostly reddish-brown, 

 the tarsi somewhat darker, claws long, stout, strongly curved, 

 simple, the pulvilli as long as the claws. Ovipositor short, 



