The nervous system is remarkably concentrated in some beetles, the abdominal ganglia showing a tendency to become shifted forward and crowded together, and in certain chafers all the thoracic and abdominal ganglia are fused into a single nervecentre situated in the thorax, - a degree of specialization only matched in the insectan class among the Hemiptera and some muscid flies. [Please select]
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Acalyptrata: those muscid flies in which alulae are absent or rudimentary. [Please select]
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Distiproboscis: the outer third of the proboscis in Muscid flies, bearing the labella. [Please select]
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Mediproboscis: the middle third of the flexed proboscis of muscid flies. [Please select]
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Maxillary tendons: two slender rods in basal third of the muscid proboscis the remnant of the palpifer, to which muscles for flexing the proboscis are attached: see lora. [Please select]
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Another fly of this Muscid group, the Idia Bigoti, according to Coquerel and Mondiere, produces in the natives of Senegal, hard, red, fluctuating tumors, in which the larva resides. [Please select]
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