1944] Further Studies oj the Tabanidce 15 
been named C. Iceta , a species not known from Trinidad) ; St. 
Augustine, male, allotype (A. M. Adamson); Penal, female 
(R. C. Shannon); also 3 females from Trinidad, without more 
definite locality (Stanton Crawford). The species also occurs 
in Bolivia (Monte S. Pablo). 
The markings of body and wings are somewhat as in C. laeta 
(Fabricius); but C. bulbicornis is readily recognized by the 
conspicuously swollen first antennal segment and the prominent, 
conical callosities of the face. In addition, the female has rows 
of lateral spots on tergites 3 to 6, which tend to fuse into lateral 
stripes, and the apical black streak of the wing fills the mar- 
ginal cell completely (the hyaline area not crossing the second 
longitudinal vein). 
Male (undescribed). Antennae as in female, the first segment 
conspicuously swollen, pear-shaped, both in profile and from 
above; facial callosities very prominent, cone-shaped; eyes 
broadly contiguous. Head, including palpi and first two anten- 
nal segments, honey-yellow (third segment lacking). Thorax 
black, covered with black and gray hairs; scutellum and pleura 
slightly brownish; mesonotum on each side with a prominent 
yellow stripe. Legs mostly honey-yellow, with black pile; coxae 
more brownish. Abdomen brownish-black; dorsum narrowly 
golden-yellow along extreme sides, with a median row of small, 
triangular yellow spots on tergites 2 to 5 (more rounded off on 
tergite 2) and small marginal lateral spots on tergites 3 to 5 
(free from the median spot on tergites 3 and 4; narrowly con- 
nected on tergite 5). Wing much as in the male of C. Iceta (see 
Krober, 1925, Konowia, 4, PI. Ill), but apical black streak 
filling entire marginal cell and anal cell without distinct hyaline 
streak (though with a slightly paler area). Length, 7 mm.; of 
wing, 6.5 mm. 
6. Esenbeckia prasiniventris (Macquart). 
St. Augustine, female, the prey of a bembicid wasp, Rubrica 
surinamensis (Degeer) (E. McC. Callan) ; Maraval, female 
(Imper. Coll. Trop. Agric.). 
7 . Lepiselaga crassipes ( F abricius ) . 
Pt. Fortia, female (R. C. Shannon). 
Widely distributed in the Greater Antilles, Central and South 
America. 
