opisthosoma


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Related to opisthosoma: prosoma

opisthosoma

the posterior part of the main body in arachnids.
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This is certainly caused by the fact that the opisthosoma contributes most to the variation in size and mass within the species, depending mainly on the nutritional status and the development of the sexual organs (Jakob et al.
Furthermore, the cuticle on the dorsal opisthosoma between setae e1-e1 to h1-h1 is without strong chevrons, usually with more or less transverse folds in B.
with less pigmentation (e.g., PJ 3419, 3420): patches or spots in front of spinnerets or patterning on lateral opisthosoma may be absent.
Published descriptions of ParahughmiUeria indicate that the opisthosoma is widest at tergite 3 (Braddy 2000; Stormer 1973).
After mating trials were complete, we measured three linear body measurements to the nearest 0.01 mm of each spider: patella-tibia length (contiguous leg segments) of the right foreleg, prosoma width and opisthosoma width.
The main characters responsible by this ordination referred to: the prodorsal shield (scapular setae length); coxigenital region (setae length), opisthosoma (setae length; number of dorsal and ventral rings; space and number of microtubercles between ventral setae) and leg (setae and segment length).
Females had large black areas on the middle and posterior portions of their opisthosoma, which result from abrasion during amplexus.
Females with mating scars (i.e., indentations and abrasions on the dorsal surface of the opisthosoma resulting from the attached male) were categorized as mature.
Yet even when raised in the lab, the New Mexican strain overall could whip the Arizonians' opisthosoma. Hedrick and Riechert didn't use the word personality in the series of papers they wrote about these spiders during the 1980s and 1990s, but Hedrick talks about the New Mexican spiders as predictably more aggressive and the Arizona counterparts as less so.
Towards the end of this stage the opisthosoma of female protonymph was oval whereas in the case of male it was posteriorly tapering.
To detect and identify the various spirochetes that may be present in these ticks, the opisthosoma of each was opened, the contained mass of soft tissue was dissected out and placed in physiologic saline, and DNA was extracted as described previously (15).