. The practical study of malaria and other blood parasites. Malaria; Mosquitoes; Trypanosoma; Blood. IX Larva and Pupa.—^According to Bruce, tsetse flies (or at least one species) do not lay eggs, but extrude a yellow-coloured larva. After a few hours this changes into a pupa. The pupa is six mm. long and three mm. broad. It consists of twelve segments. The twelfth segment is pro- duced into two large lips, enclosing a pit, the site of the respiratory stigmata in the larva. At the anterior end is a longitudinal groove, through which the fly eventually Fig. 96. Wing Venation of Glossi
. The practical study of malaria and other blood parasites. Malaria; Mosquitoes; Trypanosoma; Blood. IX Larva and Pupa.—^According to Bruce, tsetse flies (or at least one species) do not lay eggs, but extrude a yellow-coloured larva. After a few hours this changes into a pupa. The pupa is six mm. long and three mm. broad. It consists of twelve segments. The twelfth segment is pro- duced into two large lips, enclosing a pit, the site of the respiratory stigmata in the larva. At the anterior end is a longitudinal groove, through which the fly eventually Fig. 96. Wing Venation of Glossina, and antenna with Feathered Arista. {After Austen) Classification of Species (i) Hind tarsi entirely dark. (a) Abdominal segments: sharply defined pale hind borders. Second segment: a conspicuous square or oblong pale area in the centre. 1. Gl. tachinoides.—The smallest tsetse fly (8 mm,). $ smaller. In the ? the tarsi basally somewhat pale. (6) Abdominal segments: hind borders, if lighter, extremely narrow. Second segment: pale area triangular. Larger species than (a). 2. Gl. palpalis.—Darkest of all species of Glossina. Third joint of antenna dusky-brown to cinereous 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
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectb, booksubjectmalaria
