﻿Additions In the BoinhjiJiid Fauna of South Africa (Biptera). 477 



pilose ; claws Avitli long and acute basal tooth. Wings whitish 

 hyaline; the fuscous pattern is faintly developed, but ends distinctly 

 in a truncate form into the marginal cell opposite to the marginal 

 cross-vein ; the basal and the discoidal cell are less infuscated, and 

 therefore there is a fuscous patch at the end of the discoidal cell 

 which seems sometimes to be isolated as in the species of the E. heros- 

 group. First posterior cell narrowed at end, being only a little 

 broader than the anal cell at end ; the terminal cross-vein of the 

 discoidal cell is horizontal and somewhat S-shaped ; moreover, the 

 discoidal cell has a projection into the third posterior cell of a rather 

 angular shape and appendiculate as in the subgenus Acrodisca, from 

 which the present species is distinguished in having elongate and not 

 spiculose front tibiae. 



ExopRosopA (Exopeosopa) atrinasis, Speis (1910). 



A species of proportionately greater size, very distinct on account of 

 its lary;e wings, which are infuscated along the fore border, and have 

 the cross-vein edged with fuscous, but not in the shape of rounded 

 spots as in the ftaiio^j/era -group. In the key of the species ('Ann. S. 

 Afr. Mus.,' xviii, p. 151) the present species should folloAv No. 39, 

 being distinct from luteicosta owing to the more developed wing 

 pattern. 



1 $ from Pemba, N. Ehodesia (Father Cassett), and another female 

 from Otjiverongo, S.W. Protectorate, February, 1921 (K. H. Barnard). 



The species is known from East Africa and Abyssinia, but was also 

 found in Nyassaland ; it is pre-eminently a centro-oriental form. 



Additions and Corrections to Monograph of South African 

 BoMBYLiiD.E (Vol. xviii, Pt. I, pp. 1—180). 



P. 4, 1. 37, and p. 178, 1. ^^, read Pscudoamictus instead of Pseudoxmictus and 

 Pseudomichis. 



P. 5, 1. 12, and p. 179, 1. 6, read Tomomijza instead of Tomomyra. 



P. 9, after Bombijlius boinbiformis add spec. nov. 



P. 52, after Anastoechus macrophthalmus add spec. nov. 



P. 69, 1. 19, and p. 176, 1. 17, read comata instead of carnata. 



P. 78, after Corsomyza anceps add spec. nov. 



P. 88, after Gonarthrus add gen. nov. 



P. 99, after Geron bat-batus add spec. nov. 



P. 105, after Toxophora punctipennis add sj)ec. nov. 



P. 1.30, after Oestra^ithrax delete (1912) and add gen. nov. 



P. 134, after Thyridanthrax transiens add spec. nov. 



P. 136, after Thyridatithrax ternarius add spec. nov. 



P. 139, after Metapenta add sub. gen. nov. 



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