haematodocha

haematodocha

[‚hē·məd·ō′dō·kə]
(invertebrate zoology)
A sac in the palpus of male spiders that fills with hemolymph and becomes distended during pairing.
References in periodicals archive ?
141); bulb dark brown, anterior haematodocha clearly separated; embolus somewhat triangular, very large and broad, slightly curved (Fig.
Subtegulum and tegulum aligned via haematodocha; tegular sperm duct visible, straight to strongly curved (e.g.
On two occasions where the complete sequences were observed, the male made 17 and 29 flubs before the palp engaged with the epigynum and the haematodocha was finally inflated.
The species are easily recognizable: as a rule the males have two tibial apophyses and a compound embolus, which is partially hidden in the cymbial pocket behind the distal haematodocha; the females usually have a strongly sclerotized epigyne with the gonopores situated in large depressions, the seminal ducts forming many loops, and small rounded receptacles.
Pedipalps dark, tibial apophysis curved (Figs 203, 204), bulb dark brown, anterior haematodocha clearly separated, embolus short (Fig.
Bulb oval, distal haematodocha separated, embolus longer than in congeners, linguiform (Fig.
Male palpal structures: basal haematodocha (BH), conductor (CON), cymbium (CYM), distal haematodocha (DH), embolus (EMB), lunar plate of the subtegulum (LPS), median apophysis (MA), palea region (PR), tegulum (TEG), terminal apophysis (TA).
13): very prominent palea region projecting beyond the cymbium; lunar plate of the subtegulum conspicuous, overlaps portion of basal haematodocha: linear portions of embolus and terminal apophysis near their tips are not perpendicular to the median apophysis, but rather angled.
Basal haematodocha: The membranous basal haematodocha connects the alveolus to the subtegulum (Figs.
In the expanded bulb, the petiole appears as an extended, flat, heavy sclerite." According to our observations, theridiids generally lack a petiole, although a small, indistinct, and lightly sclerotized region within the basal haematodocha in some taxa may be homologous to the petiole.
In Micropoltys the sperm duct appears to pass from the radix, through the base of the distal haematodocha and straight into the embolus.