ICA EL 
All the figures were taken from Tabanus sulcifrons. 
Fig. 1. Anterior of head of male. The greater part of this view is 
occupied by the compound eyes on the surface of which are to be seen the 
transverse green bands which are represented by heavy black lines. The 
space included within the dotted lines represents the location of the enlarged 
facets. a, vertical triangle; b, first segment of one of the antennae; 
c, frontal triangle, a plus c form the front; d and e, face, e, cheek; f, 
one of the maxillary palpi; g, proboscis; h, labella. 
Fig. 2. Anterior view of head of female. c, front which includes. 
all the space down as far as the base of the antennae; b, frontal callosity 
with linear extension above; a, subcallus; d, f, face, f, cheek; e, basal 
segment of antennae; g, maxillary palpus. 
Fig. 3. Side view of proboscis and maxillary palpus of female. c, 
proboscis; d, labella; a, basal segment; b, apical segment of a maxillary 
palpus. 
Fig. 4. Mouth parts of female. a, apical segment; b, basal seg— 
ment of maxillary palpus; c, maxilla; d, mandibles; e, hypopharynx;. 
f, labrum. 
Fig. 5. Mouth parts of male. a, b, maxillary palpus; c, maxilla; 
d, labrum; e, hypopharynx. 
Fig. 6. Dorsal view of segments 8, 9, 10 of the male abdomen. 
n, p, q, segments 8, 9, 10, respectively; 0, basal segment of clasper. 
Fig. 7. Ventral view of Fig. 6. n, q, r, segments 8, 9, 10 respect— 
ively; 0, p, segments 1 and 2 of claspers respectively. 
Fig. 8. n, 0, p, dorsal view of segments 8, 9, 10 of female abdomen. 
respectively. 
Fig. 9. Ventral view of Fig. 8. q, infraanal plate. 
Fig. 10. Same as Fig. 6, showing different position of male claspers. 
Fig. 11. Same as Fig. 7, showing different position of claspers. The 
second segment of the claspers is folded under the first. 
Fig. 12. Last segment of female front tarsus...a, pulvillus; b, claw; 
c, empodium. Re 23 
Fig. 13. Last segment of male front tarsus lettered as in Fig. 12. 
Fig. 14. Female antenna. i, j, k, segments 1, .2, 3 respectively. 
The third segment is prominent at basé and composed of five annulations, 
the basal one of which is longer than. the others combined. 
Fig. 15 Male antenna. 
