Anillomyrma decamera

Eguchi, K., Bui, T. V. & Alpert, G. D., 2009, Revision of the ant genus Anillomyrma Emery, 1913 (Hymenoptera: Formicidae: Myrmicinae: Solenopsidini)., Myrmecological News 13, pp. 31-36: 33

publication ID

22904

persistent identifier

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Donat

scientific name

Anillomyrma decamera
status

 

Anillomyrma decamera  HNS  (Emery, 1901) (Figs. 1 - 10)

Monomorium decamerum Emery  HNS  , 1901: 117. Syntype workers, Sri Lanka: Anuradhapura , W. Horn leg., 1899, MSNG. Two syntypes examined  .

Monomorium (Anillomyrma) decamerum Emery  HNS  , 1901: Emery (1913): 261 (combination).

Anillomyrma decamera  HNS  (Emery, 1901): Ettershank (1966) (combination).

Anillomyrma decamera ssp. continentis Wheeler  HNS  , 1927: 96-97. Syntype workers, Van Phu , Indochina [ Vietnam?], leg. F. Silvestri, 16.II.1925 ( MCZC). Three syntypes ( 35572) examined. New synonymy  .

Non-type material examined. China: " Jungshan ", 9 workers, leg. F. Silvestri ( MCZC)  . Vietnam: Ba Ria - Vung Tau: Binh Chau - Phuoc Buu Nature Reserve , 10° 32' 49" N, 107° 29' 11" E, 44 m a.s.l., 33 workers captured in underground bait-trap # BTN 16xii 08-18, leg. K. Eguchi, 16.XII. 2008 ( ACEG, MCZC, MHNG, MSNG, NHMW, VNMN)GoogleMaps  . Philippines: Luzon Island: Camarines Sur: Mt. Isarog , Naga City , Panicuason Village , 13° 40' 11" N, 123° 20' 05" E, 550 m a.s.l., 6 workers extracted from soil, leg. J. Caceres, 31.III.2008 ( DMGC)GoogleMaps  .

Worker diagnosis. (Also see "Worker description" under the genus description). Body sculpture absent except for hair-pits, which are most conspicuous on head and promesonotum ; dorsum of head, promesonotum and gaster relatively densely covered with short suberect to decumbent hairs. Head in full-face view roughly rectangular, longer than broad; mandible with 4 distinct teeth of which basal one is smaller than the others and 3rd almost as large as 2nd (preapical tooth); antennal scape short, reaching only 7 / 10

- 3 / 4 of distance from anterior margin of clypeus to posterior margin of head; apical antennal segment more than 3 times as long as preapical segment. Dorsum of mesosoma in lateral view flat; posterior slope of propodeum in lateral view hardly expanding posterodorsad. Petiolar peduncle in lateral view gradually thickened toward node.

Worker measurements and indices. Type material (3 syntype workers of " Anillomyrma decamera ssp. continentis  HNS  ", but 2 measured for PW and WL): CI 79 - 82, HL 0.34

- 0.35 mm, HW 0.27 - 0.29 mm, PW 0.19 mm, SI 66 - 67, SL 0.18 - 0.19 mm, WL 0.46 - 0.48 mm; Vietnamese material(5 workers from BTN 16xii 08-18): CI 80 - 83, HL 0.37

- 0.38 mm, HW 0.30 - 0.32 mm, PW 0.21 - 0.23 mm, SI 67

- 72, SL 0.21 - 0.22 mm, WL 0.46 - 0.48 mm; Philippine material (3 workers from Isarog): CI 83 - 87, HL 0.33 - 0.37 mm, HW 0.28 - 0.32 mm, PW 0.19 - 0.22 mm, SI 61

- 65, SL 0.18 - 0.19 mm, WL 0.43 - 0.47 mm; Chinese material(3 workers from Jungshan, but 2 measured for WL): CI 85 - 86, HL 0.34 - 0.35 mm, HW 0.29 - 0.30 mm, PW 0.20 - 0.22 mm, SI 66 - 67, SL 0.20 mm, WL 0.47 mm.

Distribution. India: Bihar (Bolton 1987). Sri Lanka: Anuradhapura. Vietnam: Ba Ria - Vung Tau; "Van Phu". China: "Jungshan". Philippines: Luzon.

Remarks. CI is greater in the material from Isarog and Jungshan than in the material from Vietnam; SI is smaller in the material from Isarog than in the material from Vietnam and Jungshan.

MSNG

Italy, Genova, Museo Civico di Storia Naturale "Giacomo Doria"

MCZC

USA, Massachusetts, Cambridge, Harvard University, Museum of Comparative Zoology

ACEG

ACEG

MHNG

Switzerland, Geneva, Museum d'Histoire Naturelle

NHMW

Austria, Wien, Naturhistorisches Museum Wien

VNMN

VNMN

DMGC

DMGC

BTN

BTN