Archerius (Levi, Herbert W. 1957)
| Notice: | This page is derived from the original publication listed below, whose author(s) should always be credited. Further contributors may edit and improve the content of this page and, consequently, need to be credited as well (see page history). Any assessment of factual correctness requires a careful review of the original article as well as of subsequent contributions.
If you are uncertain whether your planned contribution is correct or not, we suggest that you use the associated discussion page instead of editing the page directly. This page should be cited as follows (rationale):
Citation formats to copy and paste
BibTeX: @article{Levi1957TransactionsoftheAmericanMicroscopicalSociety76, RIS/ Endnote: TY - JOUR Wikipedia/ Citizendium: <ref name="Levi1957Transactions of the American Microscopical Society76">{{Citation See also the citation download page at the journal. |
Name
Archerius Levi, Herbert W., 1957 – Wikispecies link – Pensoft Profile
- Archerius Levi, Herbert W., 1957, Transactions of the American Microscopical Society 76: 114-115.
Description
Small theridiid spiders. Carapace slightly longer than wide, highest behind eyes. Only six small eyes present. Posterior eye row slightly recurved as seen from above. Chelicerae strong with three large teeth on anterior margin, denticles on posterior margin. Sternum convex: truncate between posterior coxae. Legs short, first and fourth subequal; third shortest. A small tubercle on retrolateral face of each patella A large tarsal comb on fourth tarsus. In only species known, abdomer heavily sclerotized, with sclerotized spots on dorsum of female, a scutum covering dorsum of male. Colulus large, bearing setae (Fig. 42). Leaver of lungs, usually square-shaped in theridiid spiders, are about six timei longer than wide in Archerius and there are only about four leaves or each side. Female genitalia with one pair of seminal receptacles. Palpus with paracymbial hook (P in Fig. 47) on side of cymbium (Y) and non¬ functional. Conductor (C) and two sclerites present. It is assumed thai one is the remains of the median apophysis (M); the other, the radi (R). Conductor supports tip of embolus.
Diagnosis
The structure of the genitalia suggests a close relationship between Ctenium and Archerius. Archer his differs from Mysmena which also has a relatively large colulus, by having a more complex palpus, from Pholcomma and Paidisca by the large colulus, and from these genera as well as Ctenium and most other theridiid genera, by having only six eyes.
Taxon Treatment
- Levi, Herbert W.; 1957: The North American spider genera Paratheridula, Tekellina, Pholcomma and Archerius (Araneae: Theridiidae), Transactions of the American Microscopical Society 76: 114-115. doi
This treatment was originally uploaded by Plazi, compare this treatment on Plazi. Unless this treatment has been substantially changed on Species-ID, Plazi requests to maintain a link back to the original repository.
