. Handbook of medical entomology. Insect pests; Insects as carriers of disease; Medical parasitology. Diptera 28s DIPTERA (Mosquitoes, Midges, Flies) a. Integument leathery, abdominal segments indistinct; wings often wanting; parasitic forms PUPIPARA b. Head folding back on the dorsum of the thorax; wingless flies parasitic on bats. Genus Nycteribia Nycteribiid^ bb. Head not folding back upon the dorsum of the thorax; flies either winged or wingless; parasitic on birds and on bats and other mammals. c. Antenna reduced, wings when present, with distinct parallel veins and outer crossveins; claw
. Handbook of medical entomology. Insect pests; Insects as carriers of disease; Medical parasitology. Diptera 28s DIPTERA (Mosquitoes, Midges, Flies) a. Integument leathery, abdominal segments indistinct; wings often wanting; parasitic forms PUPIPARA b. Head folding back on the dorsum of the thorax; wingless flies parasitic on bats. Genus Nycteribia Nycteribiid^ bb. Head not folding back upon the dorsum of the thorax; flies either winged or wingless; parasitic on birds and on bats and other mammals. c. Antenna reduced, wings when present, with distinct parallel veins and outer crossveins; claws simple; palpi leaf-like, projecting in front of the head. Flies chiefly found on bats. Several genera occur in North America Streblid/E. 162. Hippobosca equina, X4. After Osborn. CO. Antennae more elongate, segments more or less distinctly separated; head sunk into an emargination of the thorax; wings when present with the veins crowded toward the anterior margin; palpi not leaf- like HlPPOBOSCID.*; d. Wings absent or reduced and not adapted for flight. e. Wings and halteres (balancers) absent. M. minus, the sheep tick Melophagus Latr. ee. Wing reduced (or cast off), halteres present, f. Claw bidentate; ocelli present. On deer after the wings are cast off. L. depressa Lipoptena Nitsch ff. Claw tridentate (fig. 161 f) On Macropis. B. femorata Brachypteromyia _ Will. dd. Wings present and adapted for flight. e. Claws bidentate. f. Ocelli present; head flat; wings frequently cast ofE. On birds before casting of the wing Lipoptena Nitsch. ff. Ocelli absent; head round; wings present. The horse tick H. equina may attack man (fig. 162) Hippobosca L. ee. Claws tridentate (fig. 161 f.). f. Anal cell closed at apical margin by the anal crossvein. g. Ocelli absent $tilhometopa Coq. gg. Ocelli 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 perf
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectinsectp, bookyear1915
