Probolomyrmex boliviensis (Taylor, R. W. 1965)
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{Taylor1965TransactionsoftheRoyalEntomologicalSocietyofLondon117, RIS/ Endnote: TY - JOUR Wikipedia/ Citizendium: <ref name="Taylor1965Transactions of the Royal Entomological Society of London117">{{Citation See also the citation download page at the journal. |
Genus: Probolomyrmex
Name
Probolomyrmex boliviensis Taylor, R. W., 1965 – Wikispecies link – Pensoft Profile
- Probolomyrmex boliviensis Taylor, R. W., 1965, Transactions of the Royal Entomological Society of London 117: 361-363.
Distribution
Distribution. - Known only from the type locality, Bolivia: Rurrenabaque (W. M. Mann).
Description
Mann's unique holotype queen of P. boliviensis has the following dimensions: HL, 0.66 mm.; HW (behind eyes), 0.43 mm.; SL, 0.47 mm.; CI, 65; SI, 109; WL, 0.95 mm.; mesonotal width, 0.33 mm.; dorsal petiole width, 0.20 mm.; petiole height, 0.27 mm.; petiolar node length, 0.34 mm.; lateral petiolar index, 126. As perusal of the relevant figures will verify, P. boliviensis closely resembles the queen of the Panamanian P. angusticeps, and there is a possibility that these two forms are mere geographical variants of a single species. At present it does not seem advisable to upset their separate status, which can be clarified only by study of additional material.
The boliviensis holotype differs from her Panamanian counterparts in the following characters:
(1) Smaller size (HL, 0.66 mm. against 0.74 - 0.76 mm. in angusticeps), with relatively broad head (CI, 65 against 61 - 63) and node (petiolar node width, 0.61 times the mesonotum width against 0.55 - 0.57 times in angusticeps).
(2) Antennal scapes proportionately much shorter (SI, 109 as opposed to 130 - 132 in queens of angusticeps).
(3) Sculpturation similar in distribution and relative intensity on different parts of the body, but superficial punctures of head, mesosomal dorsum and node distinctly less clearly incised in boliviensis.
Mann reported the palpal formula as maxillary 3: labial 2. This observation was based on the undissected holotype, and only the visible segments were considered. After studying the specimen I believe that the true maxillary count is probably 4, as in other species of Probolomyrmex. The general proportions of the palpal segments are as described above for P. angusticeps.
Biology and Ecology
Biology. - The unique holotype was taken beneath a stone, near a small colony of Ponera.
Taxon Treatment
- Taylor, R. W.; 1965: A monographic revision of the rare tropicopolitan ant genus Probolomyrmex Mayr (Hymenoptera: Formicidae)., Transactions of the Royal Entomological Society of London 117: 361-363. doi