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A revision of Nosomma monstrosum (Nuttall and Warburton, 1908) Ixodoidea: Ixodidae
Published online by Cambridge University Press: 06 April 2009
Extract
Nosomma monstrosum was originally described from a male specimen under the name of Hyalomma monstrosum by Nuttall & Warburton (1908), and the female was described some ten years later by Warburton (1918). Three other males were also seen by him at this time, and he was somewhat hesitant to assign these ticks to the genus Hyalomma. The genus Nosomma was proposed by Schulze (1919) to accommodate this monotypic species, but this appears to have been done without seeing the species and his reasons for establishing the genus appear to be insufficient. Chodziesner (1924) and Sharif (1928) concur on the validity of the genus and the latter defines the genus as follows: ‘eyes flat, scutum, legs and dorsal surface of the capitulum ornate, festoons present, palps short and broad, basis rectangular dorsally in both sexes, coxae I bifid, other coxae with two short spurs on each, ventral shields in the male represented by adanal, accessory and trilobed subanal shields; spiracles short, comma-shaped in the male and subtriangular in the female’. Delpy (1936) agreed in the separation of Cosmiomma and Nosomma from Hyalomma, and in respect of Nosomma stated that ‘Caractérisé par des palpes dont l'article III est plus large que long et par des ecussons subanaux tres volumineux’. Generic status was also accepted by Toumanoff (1944) and Santos Dias (1954).
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