Polyrhachis cryptoceroides

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Polyrhachis cryptoceroides
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Formicinae
Tribe: Camponotini
Genus: Polyrhachis
Subgenus: Myrmhopla
Species: P. cryptoceroides
Binomial name
Polyrhachis cryptoceroides
Emery, 1887

Polyrhachis cryptoceroides casent0905591 p 1 high.jpg

Polyrhachis cryptoceroides casent0905591 d 1 high.jpg

Specimen Labels

Synonyms

A widespread and rather variable species that seems to form numerous local populations that show slight morphological differences. When specimens from across the whole range of its distribution are compared these morphological differences intergrade and I prefer to consider all of the examined populations conspecific. The workers of P. cryptoceroides superficially resemble those of Cataulacus and they are often seen foraging together on the trunks of rainforest trees. (Kohout 2006)

Identification

A member of the Polyrhachis cryptoceroides species group.

Keys including this Species

Distribution

Distribution based on Regional Taxon Lists

Indo-Australian Region: Borneo, Indonesia (type locality), Malaysia, Philippines, Sulawesi.
Oriental Region: Laos.


Distribution based on AntMaps

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Distribution based on AntWeb specimens

Check data from AntWeb

Biology

Castes

Worker

Nomenclature

The following information is derived from Barry Bolton's New General Catalogue, a catalogue of the world's ants.

  • cryptoceroides. Polyrhachis cryptoceroides Emery, 1887a: 228, pl. 3, fig. 14 (w.) INDONESIA (Sulawesi). Combination in P. (Myrmhopla): Emery, 1925b: 190. Senior synonym of mystica: Dorow, 1995: 51. See also: Kohout, 2006a: 146.
  • mystica. Polyrhachis (Aulacomyrma) mystica Karavaiev, 1927e: 41, fig. 19 (w.q.m.) INDONESIA (Java). Junior synonym of cryptoceroides: Dorow, 1995: 51.

Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.

Description

Worker

Kohout (2006) – P. cryptoceroides syntype: TL c. 6.00; HL 1.43; HW 1.51; CI 105; SL 1.40; SI 93; PW 1.68; MTL 1.62 (1 measured). P. mystica syntypes (workers cited first, ueen last): TL c. 5.43, 7.36; HL 1.31, 1.31, 1.68; HW 1.31, 1.28, 1.72; CI 100, 98, 102; SL 1.31, 1.25, 1.65; SI 100, 98, 96; PW 1.40, 1.40, 1.76; MTL 1.50, 1.47, 1.96 (2 workers and 1 alate queen measured). additional workers: TL c. 4.84 - 5.59; HL 1.15 - 1.40; HW 1.18 - 1.40; CI 98 - 105; SL 1.12 - 1.37; SI 88 - 102; PW 1.25 - 1.75; MTL 1.22 - 1.53 (14 workers measured).

Type Material

Kohout (2006)

Syntype workers. INDONESIA, SULAWESI, Macassar (O. Beccari), Museo Civico di Storia Naturale, Genoa (examined).

Polyrhachis (Aulacomyrma) mystica KARAWAJEW, 1927. Syntype workers, queens, males. Type locality: Indonesia, Java, Buitenzorg (= Bogor) (W. Karawajew #2323), IZAS, QMBA (examined).

The following notes on V.A. Karavaiev type specimens have been provided by Martynov & Radchenko (2016) based on material held in the Institute of Zoology, Ukrainian Academy of Science:

Polyrhachis (Aulacomyrma) mystica Karawajew, 1927.

Type locality(-ies): “Buitenzorg, 20.XII.1912 (Nr. 2323), ww, geflüg. qq und mm aus einem Nest”.

Original Karawajew label(-s): “Polyrhachis (Aulacomyrma) / mystica Kar. 2323 / Buitenzorg, Karavaev”; “Polyrhachis (Aulacomyrma) / mystica Karav. typus. / Tjiapus bei Buitenzorg, Java. 2362. / Leg. et det. V. Karavaiev” and “Tjiapus, Java, / Karav., 2362.”; “Polyrhachis (Aulacomyrma) / mystica Karav. typus. / Tjiapus bei Buitenzorg, Java. 2362. / Leg. et det. V. Karavaev” and “Polyrhachis (Aulacomyrma) / mystica Kar. 2362 / Buitenzorg Buitenzorg, Karavaiev.”.

Material: SYNTYPES, with original Karawajew number 2323: 4 w, 1 q, 1 m (newly mounted, IN 314/6/1), 208 w, 37 q, 12 m (in alcohol, IN 314/BAMS1/Karaw14–17); with original Karawajew number 2362: 11 w, 1 q (newly mounted, IN 314/6/1), 58 w, 25 larvae, 3 pupae (in alcohol, IN 314/BAMS1/Karaw37–38).

Notes. In his original description Karawajew (1927a) provided the collection number 2323 for the type series of this taxon. We found in the NMNH NASU two vials with P. mystica: one has the number 2323 (as in the original description), but in the other one bears n° 2362, while material was also marked as “typus” (see above). We compared material from both vials, as well as with the type specimens with collection number 2323 from SIZK, and confirm their conspecificity. We may only suppose that Karawajew did not provide both collection numbers when described this taxon, and we consider the specimens from both samples as syntypes.

References