20 Psyche [March-June 
26. Tabanus (Neotabanus) angustivitta Krober. 
Nariva Swamp, female (R. C. Shannon). 
G. B. Fairchild saw this species from Mexico, Guatemala, 
Panama, Colombia, Venezuela, British Guiana, Brazil, Ecuador, 
Peru, Paraguay and northern Argentina. 
27. Tabanus (Neotabanus) fumatipennis Krober. 
G. B. Fairchild, who discusses this species at some length 
( 1942, Ann. Ent. Soc. America, 35, p. 162), saw specimens from 
Trinidad, as well as from Costa Rica, Panama, Brazil and 
British Guiana. 
28. Tabanus (Neotabanus) lineola var. carneus Bellardi ( = Ta- 
banus appendiculatus Hine). 
Yarra River, male (R. C. Shannon); Rio Claro, female, bit- 
ing mule (E. McC. Callan) ; St. Augustine, female, prey of 
Rubrica surinamensis (Degeer) (E. McC. Callan) ; Maracas 
Bay, female (P. C. Atteck) ; Mayaro, female (D. K. Kevan). 
The specimens from Port of Spain and St. Augustine, listed as 
T. appendiculatus in my 1940 paper, were also T. lineola var. 
carneus. 
The var. carneus is a common horsefly in Trinidad. It occurs 
over most of the Neotropical Region, from Mexico to Paraguay 
and southern Brazil. No other form of T. lineola is known thus 
far from Trinidad. 
Tabanus ochrophilus of my 1940 paper is omitted here. It 
is extremely doubtful that the specimen I saw from Trinidad 
(not now available for study) was Ad. Lutz’s species, which 
was perhaps only a variant of T. lineola var. carneus , as sug- 
gested by G. B. Fairchild (1942, Ann. Ent. Soc. America, 35, 
P- 175). 
The difficult group of trivittate American species, grouped 
under Neotabanus , has recently been revised by G. B. Fairchild 
and his conclusions are here accepted. The following key of the 
seven forms definitely known from Trinidad will replace what 
I wrote in 1940 (Bull. Ent. Res., 30, pp. 452-453). 
1. Subcallus bare and shiny in both sexes 2. 
Subcallus pollinose and dull in both sexes 3. 
2. Subcallus honey-yellow. Wing hyaline. Mid-dorsal stripe of a series of tri- 
angles; lateral stripes broken up into oblique spots. Female: frons about 
three times as high as wide, slightly narrowed below. Male: upper two- 
thirds of eye hairy and with the facets much larger than those of lower 
third. Length, 9 to 12 mm. T. hookeri. 
Subcallus dark drown to black. Wing slightly smoky. Mid-dorsal stripe of 
narrow truncate triangles; lateral stripes of a series of short streaks in line. 
