994 REPORT OF THE HARVARD AFRICAN EXPEDITION 
away from the dense shade than G. pallicera. It is never abundant, but bites 
man rather frequently along the bush paths. All the specimens which I have 
observed were active during the daytime and I have no proof that the species 
is nocturnal in Liberia. At Suahkoko, for instance, a female was caught biting 
man in bright sunlight between 1 p.m. and 2 p.m. 
J. Schwetz (1919, ‘Recherches sur les Glossines,’ pp. 137-138) lays great 
stress upon his discovery that G. fusca in Katanga has nocturnal habits. His 
observations, however, seem to have been made mostly with a peculiar race 
more recently described as Glossina fusca var. congolensis Newstead and Evans 
(1921, Ann. Trop. Med. Paras., XV, p. 99, figs. 3-6; 9; regions of Katompe 
and Kisengwa, Katanga, Belgian Congo), and not with the typical G. fusca. 
This form ‘‘congolensis’”’ differs somewhat from the type in the structure of the 
male genitalia. 
Glossina nigrofusca Newstead 
Glossina nigrofusca Newstead, 1910, Ann. Trop. Med. Paras., IV, p. 370 ( 2 7; Kasongo, Belgian 
Congo; Sunyani, Atroni and Odumase, Ashanti); 1911, loc. cit., V, p. 125. Hegh, 1929, 
‘Les Tsé-tsés,’ I, pp. 283 and 357 ( 2 &). 
Glossina grossa Newstead, 1910, Ann. Trop. Med. Paras., IV, p. 373 (not of Bigot). 
LipERIA. — Lenga Town, one male, August 15, 1926. Memmeh Town, one 
female, August 29, 1926. 
This species is known only from Sierra Leone, Liberia, the Ivory Coast, 
the Gold Coast, Southern Nigeria, and the Belgian Congo (Kasongo). It is 
readily distinguished from G. fusca by the characters given by Newstead and 
Austen, and, in the field, by the larger size. Its habits in Liberia are similar 
to those of G. fusca. It bites during the daytime. 
Glossina medicorum Austen 
Glossina medicorum Austen, 1911, ‘Handbook of the Tsetse-flies,’ p. 98, fig. 24 (9%; Sangwin 
River, Liberia). Hegh, 1929, ‘Les Tsé-tsés,’ I, pp. 296 and 327 ( 9 @). 
This little-known species, originally described from Liberia, was not found 
by the Harvard African Expedition. It differs from the other two large tsetse- 
flies of Liberia (G. fusca and G. nigrofusca) in the relatively shorter palpi, 
their length not or hardly exceeding the greatest transverse diameter of the 
head. It is also known from the Ivory Coast, Gold Coast, Dahomey, and 
Southern Nigeria. 
ANOPLURA* 
PEDICULIDAE 
Pediculus humanus humanus Linnaeus 
Pediculus humanus Linnaeus, 1758, ‘Syst. Nat.,’ L0th Ed., I, p. 610 (no sex given; off man, with- 
out locality, but probably from Europe). . en. 
Pediculus humanus capitis de Geer, 1778, ‘Mém. pour Servir 4 I’ Histoire des Insectes,’ VII, p. 67, 
Pl. I, fig. 6 (Europe). 
1 The Anoplura here listed have been identified by Dr. H. E. Ewing, of the United States National 
Museum. Some other species have been studied by Prof. G. F. Ferris, who has reported upon them in a 
separate paper (see p. 1038). 
