. The practical study of malaria and other blood parasites. Malaria; Mosquitoes; Trypanosoma; Blood. V Genus Chrysops. Front with a tubercle or callosity. Three ocelli. Second segment of antenna almost as long or as long as first. Eyes golden green. Flight silent. Wings widely separated ; spotted. Hmd tibiae spurred. Species about a hundred and fifty. .Ch. caecutiens attacks the eyes especially. Genus Silvius. Second antennal segment very much shorter than first. Wmgs without any spots. Third antennal segment five rings as in Chrysops. Species about twenty-six. S-l ..lU Fig. 92 2. Tabani
. The practical study of malaria and other blood parasites. Malaria; Mosquitoes; Trypanosoma; Blood. V Genus Chrysops. Front with a tubercle or callosity. Three ocelli. Second segment of antenna almost as long or as long as first. Eyes golden green. Flight silent. Wings widely separated ; spotted. Hmd tibiae spurred. Species about a hundred and fifty. .Ch. caecutiens attacks the eyes especially. Genus Silvius. Second antennal segment very much shorter than first. Wmgs without any spots. Third antennal segment five rings as in Chrysops. Species about twenty-six. S-l ..lU Fig. 92 2. Tabaninae The two most numerous genera are Tabanus and Haematapota. (a) Front much longer than broad. Frontal tubercle when present not transverse. Genus Tabanus. Proboscis short and thick ; vertical in the female, oblique in the male. Antennae scarcely longer than head. Third segment five rings. First ring is characteristically notched in shape of a crescent with a basal process {Vide Fig. 91). Eyes bare. Large flies with humming flight. Species about a thousand. (6) Front as broad as it is long or broader. Frontal tubercle transverse, about four times as broad as long. Genus Haematapota. Terminal segment of antennae not crescentic. Third segment has four rings. Wings adjacent like the side of a roof. They transparent markings. No ocelli. Flight silent. About fifty species. B 1. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Stephens, John William Watson, 1865-; Christophers, S. R. (Samuel Rickard), 1873-; Liverpool School of Tropical Medicine. London, Pub. for the Univ. Press of Liverpool by Williams & Norgate
Size: 2441px × 1023px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubjectb, booksubjectmalaria
