J 944] Further Studies of the Tabanidce 13 
the females formerly called T. carneus ; while T. appendiculatus 
is considered a synonym of T. lineola var. carneus . 
Two species of Tabanidce are now known from Tobago: 
Tabanus amplifrons and T. leucaspis , both common in Trinidad. 
In my earlier paper a brief comparison was drawn between 
the tabanid faunae of Trinidad, the Antilles, and continental 
South America. This was somewhat amplified in my monograph 
of the Tabanidae of the Antilles (1940, Rev. de Entomologia, 11, 
p. 271-272). The conclusions reached at the time are merely 
confirmed by recent additions. The purely South American 
character of the Trinidad tabanid fauna remains beyond dis- 
pute. All nine genera of the revised list are found on the con- 
tinent. This is true also of the nine subgenera here included in 
the genus Tabanus , some of these groups being given generic 
rank by recent authors ( Stenotabanus , Leucotabanus, Chloro- 
tabanus , etc.). The 31 species likewise all occur on the Amer- 
ican mainland, where most of them are widely distributed. On 
the other hand only four of the nine Trinidad genera are repre- 
sented in the Antilles ( Chrysops , Lepiselaga , Dichelacera , 
Tabanus ); while of the nine subgenera of Tabanus , five occur 
in Trinidad as well as in the Antilles (Chelo tab anus, Bellardia , 
Chlorotabanus , Macrocormus and Stenotabanus). Of the 31 
Trinidad species, only five are definitely known from the An- 
tilles: Chrysops variegata, Lepiselaga crassipes , Tabanus 
hookeri , T. vittiger ( = T. truquii of my Antillean monograph) 
and T. lineola. (T. ferrifer has been recorded doubtfully from 
Barbados). These five species are widely distributed through- 
out tropical America, T. lineola occurring even in the Nearctic 
Region. 
1. Chrysops variegata (Degeer). 
2 . Chrysops tristis ( F abr icius ) . 
3. Chrysops fulviceps Walker ( = C. aurofasciatus Krober). 
4. Chrysops pallidefemorata Krober ( = C. auroguttatus var. 
pallidefemoratus Krober, 1930, Zoolog. Anzeiger, 90, 
p. 72, figs. 9-10; 9 ; Trinidad). 
Lezard Swamp, female (R. C. Shannon); Caroni Swamp, fe- 
male (R. C. Shannon). 
These two specimens agree with Krober’s figures of the head, 
antenna (partly drawn) and wing pattern of var. pallidefemo- 
ratus , not with those of his typical auroguttatus (Ibid., p. 71, 
