prothorax

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prothorax

[prō′thȯr‚aks]
(invertebrate zoology)
The first thoracic segment of an insect; bears the first pair of legs.
References in periodicals archive ?
1940) Induction of pupation in the silkworm by transplanting the prothoracic gland.
Fungal symbionts in the prothoracic mycangium of Dendroctanus frontalis (Coleopt.
Meso- and metathoracic legs were subequal in length and longer than prothoracic legs (Table I).
Length of the prothoracic tibia was measured using a stage micrometer and camera lucida.
Second, the prothoracic legs bear two articulated pretarsal claws in African Laccocorinae, whereas a single immovable claw is fused to the protibia in Naucorinae.
Stage-specific effects of Campoletis sonorensis parasitism on Heliothis virescens development and prothoracic glands.
Effects of Nanoinjecting Three Inhibitory Neurotransmitters into the Prothoracic Ganglion on the Selectivity of Phonotaxis in Female Crickets (Acheta domesticus).
Fungal symbionts in the prothoracic mycangium of Dendroctonus frontalis (Coleoptera: Scolytidae).
He diagnosed Mesoveliinae on absence of a prothoracic suture separating tergum and sternopleuron, and interpreted presence of such sutures in Madeovelia and Mesoveloidea as plesiomorphic, whereas their presence in Cryptovelia was considered a character reversal.
3) pale brown except coxae and trochanters dark brown, hindfemur dark brown except base and extreme apex paler, hindtibia with subbasal, small dorsal dark spot; base of fore and midfemora brown (more evident on midleg), midtibia with subbasal, very small dark spot; femora and tibia with appresed striated brown scales; ventral palisade setae on tarsomeres 1-3 in all legs; hindtibial spur yellowish, length slightly shorter than width of hindtibia at midlength; hindtibial comb with two rows of spines, apical row with 8-9 spines, subapical row with 12-13 spines; prothoracic TR 0.
Lehrbuch der Entomologie), do not describe the prothoracic sternum in Coleoptera.