McArthur and Adams (1996) - The clypeus of C. nigriceps lividipes resembles Camponotus terebrans, where the anterior margin is more straight and dissimilar to the concave anterior margin of the C. nigriceps group.
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The following information is derived from Barry Bolton's New General Catalogue, a catalogue of the world's ants.
- lividipes. Camponotus nigriceps st. lividipes Emery, 1887a: 211 (footnote) (s.w.) AUSTRALIA.
- Combination in C. (Myrmoturba): Forel, 1914a: 267.
- Combination in C. (Tanaemyrmex): Emery, 1925b: 103.
- Subspecies of consobrinus: Wheeler, W.M. 1933b: 23; Clark, 1934c: 71.
- Subspecies of nigriceps: Emery, in Dalla Torre, 1893: 244 (footnote); Emery, 1896d: 372 (in list); Emery, 1925b: 103; Taylor & Brown, 1985: 117; Bolton, 1995b: 108.
- Status as species: Dalla Torre, 1893: 240; Forel, 1914a: 267; McArthur, 2014: 66.
Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.
In my collection a specimen from the Andaman Islands has all the characteristic shape, markings and hair of C nigriceps, and the color of the smaller forms of the type. Length 12 mm.,the development of the head corresponding with the Australian forms of 10 mm.
I believe that I have to refer to the aberrant race of C nigriceps the following forms that I will now call C lividipes n.st.
The shape of the clypeus and markings is similar to C.nigriceps. The node is depressed from the back where the appearance is almost plateau; the soft hair of the limbs is longer and more abundant. The color is black, with only the limbs and flagelli testaceous, so therefore at first sight it resembles C.testaceipes Smith. Specimens from my Adelaide and Queensland collections are a lot smaller (6-10 mm)
Under the name nigriceps, subspecies lividipes, Emery has briefly described a still smaller form from Adelaide and Queensland. He maintains that the clypeus is like the type. He only gave me a female lividipes from Tasmania but with this species the clypeus is throughout not like the type. Its central lobe is trapeze shaped without the lateral concave sides (the sides are rather rounded) and in the middle is edged as with claripes. The sides of the central lobe are convex and not concave as is the case with nigriceps.
On the whole,the specimens from Adelaide and Queensland are identical with specimens from Tasmania, so the lividipes must be considered as a single (unique??) species. The scape is much longer than the almost familiar claripes and protrudes to exactly the posterior border of the head.
McArthur and Adams (1996) – Museo Civico di Storia Naturale, Genoa Drawer 113, 1 major worker from Australia. 1 medium worker, damaged. Major worker: HW = 2.45 mm, HL = 2.5 mm, PW = 1.5 mm, HT = 2.5mm, TL = 2.0 mm. From Adelaide, D’Albertis collection, 1873, New South Wales.
- Syntype, 1 worker (badly damaged), Adelaide, South Australia, Australia, Museo Civico di Storia Naturale, Genoa.
- Syntype, worker(s), Queensland, Australia.
- Clark, J. 1934c. Ants from the Otway Ranges. Mem. Natl. Mus. Vic. 8: 48-73 (page 71, Subspecies of consobrinus)
- Dalla Torre, K. W. von. 1893. Catalogus Hymenopterorum hucusque descriptorum systematicus et synonymicus. Vol. 7. Formicidae (Heterogyna). Leipzig: W. Engelmann, 289 pp. (page 240, Raised to species)
- Emery, C. 1887a . Catalogo delle formiche esistenti nelle collezioni del Museo Civico di Genova. Parte terza. Formiche della regione Indo-Malese e dell'Australia. [part]. Ann. Mus. Civ. Stor. Nat. 24[=(2)(4): 209-240 (page 211, (footnote) soldier, worker described)
- Emery, C. 1925d. Hymenoptera. Fam. Formicidae. Subfam. Formicinae. Genera Insectorum 183: 1-302 (page 103, Combination in C. (Tanaemyrmex))
- Forel, A. 1914a. Le genre Camponotus Mayr et les genres voisins. Rev. Suisse Zool. 22: 257-276 (page 267, Combination in C. (Myrmoturba))
- Forel, A. 1914a. Le genre Camponotus Mayr et les genres voisins. Rev. Suisse Zool. 22: 257-276 (page 267, Raised to species)
- McArthur, A. J. and M. Adams. 1996. A morphological and molecular revision of the Camponotus nigriceps group (Hymenoptera: Formicidae) from Australia. Invertebrate Taxonomy. 10:1-46. (page 41, type-series referred to testaceipes-group (recte terebrans-group))
- McArthur, A.J. 2014. A guide to Camponotus ants of Australia: 185 pp. South Australian Museum.
- Taylor, R. W.; Brown, D. R. 1985. Formicoidea. Zool. Cat. Aust. 2:1- 149: 1-149, 30 (page 117, Subspecies of nigriceps)
- Wheeler, W. M. 1933b. Mermis parasitism in some Australian and Mexican ants. Psyche (Camb.) 40: 20-31 (page 23, Subspecies of consobrinus)