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Sheet-web Spider

Scientific Name
Cambridgea sp.
Scientific Author
Taxonomy
(Araneae: Stiphidiidae)
Pest Status
0 Unknown
Status
NZ - Exotic
Reliability
High
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Diagnostic Images

Dorsal - Adult
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Caption
ARA35
Source
Caroline Harding MPI
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Diagnostic Images (4)
Diagnostic Notes
Body length 8-20 mm. Ecribellate. Eyes in 2 more or less straight rows. AME only slightly smaller than remaining eyes. Chelicerae with a strong lateral boss. Promargin with 2 teeth, retromargin with from 3-5 teeth but usually 4. Often much larger and porrect in the male. Legs long and slender, without plumose hairs. Trochanters of legs 2-4 with a very shallow notch. Superior claws strongly pectinate. Inferior claw with few teeth. Colulus a large, flat plate. Males often with a stridulating organ in the form of an erect projection from the anterior plate of the lorum of the pedicel which engages with a series of sclerotized ridges on the anterior overhang of the abdomen. This structure is not present in all species. Epigynum with a median furrow while the median ridge is represented by an anteriorly situated lobe. Internal genitalia receptaculate with short ducts which open anteriorly. Male palp is long and slender with the distal portion of the cymbium narrowing and extending well beyond the bulb. Embolus spiniform, originating from the prolateral margin of the bulb. Conductor well developed and membraneous. Median apophysis poorly developed and virtually absent in some species. Distal segments of posterior spinnerets shorter than basal segment.

References

- Forster, R.R. & Wilton, C.L. (1973). The spiders of New Zealand. Part IV. Otago Museum Bulletin, 4: 1-309.
More Information
Specimen Contact
MAF Plant Health & Environment Laboratory
Author
MAF Plant Health & Environment Laboratory
Created
08/04/2011 10:10 AEST
Last Updated
08/05/2014 03:52 AEST
Citation
MAF Plant Health & Environment Laboratory (2011) Sheet-web Spider (Cambridgea sp.) Updated on 5/8/2014 3:52:03 AM Available online: PaDIL - http://www.padil.gov.au.
Image Use
Free for use under the Creative Commons Attribution 3.0 Australia License

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