130 R. W. CROSSKEY 



urundiensis Fain, 1950, Revue Zool. Bot. afr. 43 : 122 (Simulium, as variety of 

 adersi Pomeroy, 1922). Syntypes <$, pupae, Burundi : MRAC, Tervuren and 

 BMNH, London (1 <J). 



vangilsi Wanson, 1947, Revue Zool. Bot. afr. 40 : 207 {Simulium). Syntypes <$, $, 

 pupae, Democratic Republic of Congo : MRAC, Tervuren and BMNH, 

 London (1 g). 



vargasi Grenier & Rageau, 1949, Bull. Soc. Path. exot. 42 : 518 (Simulium). Syn- 

 types <J, pupae, larvae, Cameroun Republic : IP, Paris. 



vilhenai Luna de Carvalho, 1962, Publcoes cult. Co. Diam. Angola, No. 60 : 44 

 (Simulium). Syntypes $, $, pupae, larvae, Angola : MD, Dundo and BMNH, 

 London. 



violaceum Pomeroy, 1922, Bull. ent. Res. 12 : 460 (Simulium, as variety of 

 alcocki Pomeroy, 1922). LECTOTYPE pupa [by present designation] (ring- 

 mounted on pin), Nigeria : BMNH, London. 



Pomeroy described violaceum from an unstated number of pupae and reared 

 adults, distinguishing the variety from alcocki type-form by the 10-filamented 

 pupal gill ; the types, unspecified, were stated to be in British Museum. The 

 existing type-material in BMNH, London consists of one reared $, one reared $, 

 legs of a reared $, and a cocoon and pupal parts (including gills), all material 

 representing syntypes in poor condition on four mounts in the pinned collection. 

 The pupal specimen (showing the distinguishing gill-character) has been labelled 

 and is here designated as lectotype : the data are as follows :- a type-written 

 label reading ' Ibadan Nigeria ' with the hand-written date ' 6.xii.20 ', and the 

 label ' S. alcocki var. violaceum Pom. Pupal filaments ' in Pomeroy's writing. 



Name preoccupied by Simulium violaceum Enderlein, 1922, see replacement 

 name occidentale Freeman & de Meillon, 1953. 



voltae Grenier, Ovazza & Valade, i960, Bull. Inst. jr. Afr. noire 22 : 905 (Simulium, 

 as form of dentulosum Roubaud, 1915). Syntype pupae, Upper Volta : IP, 

 Paris. 



vorax Pomeroy, 1922, Bull. ent. Res. 12 : 461 (Simulium). Neotype $, Tanzania 

 (Tanganyika) : BMNH, London. Neotype designation by Freeman & de 

 Meillon, 1953, Sim. Ethiop. Reg. : 184. 



vulcani Fain, 1950, Revue Zool. Bot. afr. 43 : 118 (Simulium). Syntypes <$, $, 

 pupae, Rwanda : MRAC, Tervuren and BMNH, London (i<$, 1 pupa). 



wellmanni Roubaud, 1906, Bull. Mus. natn. Hist, nat., Paris 12 : 519 (Simulium). 

 LECTOTYPE $ [by present designation], Angola : BMNH, London. 



The original description of wellmanni was based on four female syntypes 

 (' Quatre exemplaires femelles provenant de l'Angola et recueillis par le docteur 

 Wellmann en avril 1905 '), stated to be from the British Museum collection. 

 Only one syntype now exists in BMNH, London (referred to in error as holotype 

 by Freeman & de Meillon. 1953, Sim. Ethiop. Reg. : 207), and this has been 

 labelled and is here designated as lectotype. Lectotype data are : a hand-written 

 label reading ' "Bulu-Bulu" Plain, Bihe, Angola. W. Africa. April, 1905. 

 Dr. F. C. Wellman.' ; a Roubaud determination label as wellmanni ; a printed 



