Wheeler, W.M., 1935
| Ancyridris polyrhachioides|
| 2 species|
|Based on Ward et al. (2014) and Blaimer et al. (2018).|
The hooked end of the long propodeal spines, curved towards the head, and the rearward bending elongate petiole spines are a distinctive feature of both species of this genus. Beyond this the genus is similar to Aphaenogaster or certain worker forms of Pheidole.
World distribution based on political regions. View/Edit Data
• Antennal segment count 12 • Antennal club 2-3 • Palp formula 3,2; 2,2 • Total dental count 7-9 • Eyes present • Scrobes absent • Sting present
• Caste unknown
The following information is derived from Barry Bolton's New General Catalogue, a catalogue of the world's ants.
- ANCYRIDRIS [Myrmicinae: Stenammini]
- Ancyridris Wheeler, W.M. 1935a: 1. Type-species: Ancyridris polyrhachioides, by original designation.
- [Ancyridris provisional junior synonym of Lordomyrma: Brown, 1973b: 178 (unconfirmed).]
Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.
Worker: Monomorphic (?), with hard, thick, smooth integument. Mandibles subtriangular, with distinct and rather long masticatory border bearing a graduated series of about 10 teeth. Palpi short, maxillary pair 4-, labial pair 3-jointed. Head broadly subelliptical, eyes well developed, in front of the middle of its sides; ocelli absent. Clypeus very short laterally, with subobsolete posterior suture, its median portion produced backward triangularly between the frontal carinae, its anterior border with a large, median triangular tooth. Frontal carinae rather closely approximated, feebly lobular in front, straight and subparallel behind; frontal area absent; frontal groove interrupted, subobsolete. Antennae long, 12-jointed; first funicular joint somewhat enlarged, second longer than the third, the tip enlarged, forming an indistinct three- to four- jointed club. Thorax long and narrow, shaped somewhat as in Aphaenogaster, with long and pronounced mesoepinotal impression; promesonotal suture distinct only on the sides, mesoepinotal suture obsolete; pronotum with strong humeral protuberances; mesosternum with a rectangular, laterally projecting tooth near the base of its ventral border; epinotum bearing two long, flattened, hooked spines resembling those of Polyrhachis bamata Drury; epinotal spiracle circular, borne on a distinct crateriform eminence; metasterna swollen, apparently containing voluminous metasternal glands. Petiole long, with well-developed anterior peduncle, its node rather high and bearing a pair of backwardly and outwardly directed spines. Postpetiole short, with rounded-subconical node. Gaster broadly oval, consisting for the most part of the enlarged first segment; sting not exserted, apparently vestigial. Legs long; coxae large and swollen; middle and hind tibiae spurless; tarsal claws simple.
- Bolton, B. 1994. Identification guide to the ant genera of the world. Cambridge, Mass.: Harvard University Press, 222 pp. (page 106, page 90, Ancyridris as genus)
- Bolton, B. 1995b. A new general catalogue of the ants of the world. Cambridge, Mass.: Harvard University Press, 504 pp. (page 63, Ancyridris in Myrmicinae, Stenammini)
- Bolton, B. 2003. Synopsis and Classification of Formicidae. Mem. Am. Entomol. Inst. 71: 370pp (page 202, Ancyridris as genus)
- Brown, W. L., Jr. 1973b. A comparison of the Hylean and Congo-West African rain forest ant faunas. Pp. 161-185 in: Meggers, B. J., Ayensu, E. S., Duckworth, W. D. (eds.) Tropical forest ecosystems in Africa and South America: a comparative review. Wash (page 178, Ancyridris provisional junior synonym of Lordomyrma (unconfirmed))
- Stitz, H. 1938. Neue Ameisen aus dem indo-malayischen Gebiet. Sitzungsber. Ges. Naturforsch. Freunde Berl. 1938: 99-122.
- Wheeler, W. M. 1935a. Two new genera of myrmicine ants from Papua and the Philippines. Proc. N. Engl. Zool. Club 15: 1-9 (page 1, 5, Ancyridris in Myrmicinae, Pheidolini)