Entomology for medical officers / by A. Alcock.

  • Alfred William Alcock
Date:
1920
Catalogue details

Licence: In copyright

Credit: Entomology for medical officers / by A. Alcock. Source: Wellcome Collection.

    98/404 page 78
    The Culicini Subfamily CULICIN/E (continued) Section 3. CULICINI. MOSQUITOES of this section are distinguished from Anophelini by the distinctly trilobate scutellum and the close and uniform covering of scales on the abdomen ; from Megalorhini by the normally straight and flexible proboscis ; and from S abet him by the absence of a tuft of hairs posteriorly on the metanotum. The scales of head, thorax, and wings show specific differences of form ; bristles are generally present in longitudinal rows among the scales of the scutum ; in the male the palpi are usually long, but sometimes are extremely short; in the female they are usually short, but occasionally are nearly as long as the proboscis. The wings usually are not spotted, but sometimes they are speckled, or are dappled (e.g. Aedomyia), and occasionally they are spotted like those of a typical A nopheles (e.g. in Culex mnneticus). The lai vas have a breathing-tube, long or short, lateral scales on the 8th abdominal segment, and a median ventral biush on the 9th \ the lateral thoracic and abdominal hairs though sometimes pilose or pinnate are hardly ever distinct feathers. The pupae have large tail-fins and very incon¬ spicuous tufts at the postero-lateral angles of the 8th and 9th abdominal segments. The Culicini have been broken in pieces like a potter’s vessel into a multitude of “genera,” manufactured after the method of Procrustes, and named with prodigal usage of the ominous adjective \{s€vSi]s. For our purpose it is enough to recognise certain common or remarkable forms in addition 7S
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