Pyramica ambatrix Bolton, 2000

Bolton, B., 2000, The ant tribe Dacetini. With a revision of the Strumigenys species of the Malgasy Region by Brian L. Fisher, and a revision of the Austral epopostrumiform genera by Steven O. Shattuck., Memoirs of the American Entomological Institute 65, pp. 341-369 : 355

publication ID

8538

publication LSID

lsid:zoobank.org:pub:AA3AF36F-DAE3-48E6-812F-8A9934C335BE

DOI

https://doi.org/10.5281/zenodo.6279765

persistent identifier

https://treatment.plazi.org/id/8346E698-8F3E-E43D-82F6-A0C402656B51

treatment provided by

Donat

scientific name

Pyramica ambatrix Bolton
status

sp. n.

Pyramica ambatrix Bolton   HNS sp. n.

HOLOTYPE WORKER. TL 2.1, HL 0.56, HW 0.41, CI 73, ML 0.10, MI 18, SL 0.28, SI 68, PW 0.26, AL 0.60. Closely related to victrix and mostly matching the description given there, but differing as follows.

1 Pronotal numeral hair long and flagellate.

2 Mesonotum usually with 2 pairs of erect hairs.

3 Entire dorsal alitrunk, and propodeal declivity, densely sharply reticulate-punctate.

4 Ventral spongiform curtain of petiole extends the length of the segment, present beneath the peduncle but narrower there than beneath the node.

5 In dorsal view the postpetiole disc, from the posterolateral angles to the anterolateral angles, margined by spongiform tissue.

PARATYPE WORKERS. TL 2.0 - 2.1, HL 0.50 - 0.56, HW 0.40 - 0.42, CI 73 - 76, ML 0.09 - 0.11, MI 17 - 20, SL 0.26 - 0.28, SI 65 - 70, PW 0.24 - 0.28, AL 0.56 - 0.62 (10 measured). As holotype but number of mesonotal standing hairs apparently variable or affected by abrasion, with one or two pairs present.

Holotype worker, Madagascar: 5.3 km. SSE Ambanizana, Andranobe, 15 ° 40 ' S, 49 ° 58 ' E, 425 m., 21. xi. 1993, sifted litter (leaf mold, rotten wood) rainforest, # 926 (41) - 1 (B. L. Fisher) (MCZ). Paratypes. 1 worker and 1 queen (dealate) with same data as holotype; 20 workers and 4 queens (dealate) with same data but coded (2) - l, (22) - 2, (24) - 1, (25) - 1, (31) - 1, (36) - 1, (40) - 1, (43) - 1, (50) - 1, (L. O.) - l (UCD, BMNH).

NON-PARATYPIC MATERIAL EXAMINED. Madagascar: 6.3 km. S Ambanizana, Andranobe (B. L. Fisher).

Of the four species of this group found in Madagascar ambatrix is unique in possessing long flagellate hairs at the pronotal humeri. In the other three species the humeral hairs are simple and straight or only very shallowly curved.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hymenoptera

Family

Formicidae

Genus

Pyramica

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