﻿642 Prof. Mario Bezzi's lleiport on a Collection of 



^ . Length of the body 12 mm., of the wing 13 mm. 



Very near the preceding, but well distinguished by the characters 

 given above in. the table. This species is perhaps the same as the 

 aberrant Ç specimen of E. dimidiata described by Loew (l. c, p. 276), 

 chiefly in regard to the form of the discal cell. It seems, moreover, 

 to be nearly allied to E. sigmoidea described above, of which it is 

 perhaps only a variety. The two species have a similarly shaped 

 discal cell ; but the vein dividing it from the second basal cell is 

 in E. discriminata only slightly curved ; and the black fore border 

 of the wing is more narrow, being in sigmoidea as broad as in 

 E. dimidiata. 



Head black, with yellowish scales on the lower portion of the 

 frons and on the face ; frons black-haired. Antennae with the two 

 basal joints of a red colour ; third joint black, more long and thin 

 than in E. dimidiata, shaped as in E. sigmoidea, the style being 

 shorter than the joint itself. Thorax with a distinct stripe of 

 yellowish pubescence on the sides; mesopleurae with some black 

 hairs; bristles black. Scutellum dark reddish, with yellowish 

 pubescence and black bristles. Abdomen black; first segment with 

 white hairs on the sides, the others black-haired ; it seems that the third 

 segment bears a dorsal band of white scales ; the fourth and fifth have 

 these scales only on the sides, the sixth and seventh are all covered 

 with scales. Venter clothed with yellowish pubescence and pale hairs. 

 Genitalia black, yellowish at the end. Legs entirely black, with 

 black pubescence and with black bristles. Wings longer than in 

 E. dimidiata ; the black pattern is more narrow, reaching only the 

 first third of the discal cell; this cell is almost three times as long 

 as broad, and much narrowed before the base (in dimidiata only 

 twice as long as broad, and not narrowed towards the base) ; its 

 exterior vein is only slightly curved ; the first posterior cell is much 

 narrowed at the end. 



Type $, from Nyasaland, Fort Johnston, April 2, 1910 

 (Dr. A. H. Barclay) ; a single specimen. 



57. Exoprosopa luctifcra, sp. nov. (Plate L, fig. 16.) 



Ç . Length of the body 12 mm., of the wing 12 mm. 



Very near E. dimidiata, but characterised by the black meta- 

 pleural tuft. 



Third joint of the antennae of the same short conical shape as in 

 E. dimidiata ; basal joints black. Thorax wàth the hairs of the 

 collar only yellow, those on the pleurae entirely black. Scutellum 

 with reddish hind margin. Squamulae with a dark fringe. Ab- 

 domen black ; the white clothing seems to be disposed as in 

 E. discriminata. Spines of the genitalia yellow. Legs wholly 



