Acropyga myops

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Acropyga myops
Acropyga myops
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Formicinae
Tribe: Plagiolepidini
Genus: Acropyga
Species: A. myops
Binomial name
Acropyga myops
Forel, 1910

Acropyga myops side view

Acropyga myops top view

Synonyms
Evolutionary Relationships
Acropyga



Acropyga ayanganna




Acropyga donisthorpei



Acropyga panamensis







Acropyga guianensis



Acropyga stenotes






Acropyga fuhrmanni



Acropyga smithii





Acropyga romeo




Acropyga hirsutula




Acropyga dubitata




Acropyga decedens, Acropyga goeldii



Acropyga epedana












Acropyga arnoldi



Acropyga silvestrii






Acropyga kinomurai



Acropyga lauta





Acropyga sauteri




Acropyga acutiventris




Acropyga myops




Acropyga butteli




Acropyga ambigua



Acropyga pallida










Based on Blaimer et al., 2016. Note only selected Acropyga species are included, and undescribed species are excluded.

This is the only species of Acropyga that is endemic to Australia. It is widespread, occurring mainly at drier forested sites and less commonly in wet sclerophyll and rainforest. Nests are in soil under rocks. It is the only known species of Acropyga that tend non-mealybugs (in the family Ortheziidae rather than Pseudococcidae).

Identification

A. myops can be separated from other Australian species by the presence of short erect hairs on the scapes and mesosomal dorsum, the smooth mandibles which lack striations and the large size (head width greater than 0.6mm).

LaPolla (2004) - Worker: 11 segmented antennae; mesosomal dorsum with short appressed hairs, giving it a bare appearance; mesonotum broadly rounded, higher than propodeum; head width > 0.6 mm. Queen: As in worker, with modifications expected for caste. Male: 12 segmented antennae; parameres taper toward apices where many shorter hairs bend toward penis valves; in dorsal view parameres form "v" shape from apex to the base. Compare with Acropyga acutiventris and Acropyga dubia.

Keys including this Species

Distribution

Distribution based on Regional Taxon Lists

Australasian Region: Australia (type locality).

Check distribution from AntMaps.

Distribution based on specimens

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The above specimen data are provided by AntWeb. Please see Acropyga myops for further details

Nomenclature

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

  • myops. Acropyga myops Forel, 1910b: 59 (w.m.) AUSTRALIA. LaPolla, 2004a: (q.). Combination in Acropyga (Rhizomyrma): Emery, 1925b: 30. Senior synonym of indistincta: LaPolla, 2004a: 66.
  • indistincta. Acropyga indistincta Crawley, 1923b: 178 (w.) AUSTRALIA. Junior synonym of myops: LaPolla, 2004a: 66.

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

Type Material

Based on LaPolla (2004).

Description

Worker

LaPolla (2004) - (n=7): TL: 2.8-3.43; HW: 0.624-0.731; HL: 0.667-0.773; SL: 0.527-0.631; ML: 0.669-0.875; GL: 1.33-1.86; CI: 93.55-100.42; SI: 80.83-87.96.

Head: yellow; head covered in a layer of dense appressed hairs; head about as long as broad to slightly longer than broad; posterior margin entire to slightly concave; 11 segmented, incrassate antennae; scape reaches or slightly surpasses (less than half length of pedicel) posterior margin; clypeus broad, medially convex, with longer, erect hairs; mandible broad with 5-6 teeth; small, indistinct tooth often at basal angle; 3rd tooth from apical smaller than others; a short diastema between 4th and 5th tooth (numbered from apical); dorsal surface of mandible covered in many erect hairs (≥ 20 hairs); hairs close to masticatory margin often extend passed length of teeth; inner mandibular margin parallel with anterior clypeal margin. Mesosoma: yellow; in lateral view, pronotum rises steeply toward mesonotum; pronotum covered in dense layer of short appressed to suberect hairs; mesonotum dorsum broadly rounded toward metanotal area; mesonotum covered in dense layer of short appressed to suberect hairs; mesonotum higher than propodeum; metanotal area distinct; propodeum covered in dense layer of short appressed hairs, gently rounded toward steep declivity. Gaster: petiole short, but thick and erect, rounded apically; reaches at most lower portion of propodeal spiracle; gaster yellow; covered in layer of very short appressed hairs, with sparsely scattered erect hairs throughout.

Queen

LaPolla (2004) - (n=2): TL: 1.98-2; HW: 0.872-0.928; HL: 0.812-0.874; SL: 0.716-0.792; ML: 1.27-1.53; GL: 1.14-.713; CI: 106.18-107.39; SI: 82.11-85.34. As in worker, with modifications expected for caste and the following differences: can vary in color from a brownish-yellow to a dark brown (almost black); head broader than long.

Male

LaPolla (2004) - (n=2): TL: 2.48-2.64; HW: 0.525-0.563; SL: 0.48-0.453; ML: 0.971-1.2; GL: 0.713-1.14; CI: 100-109.77; SI: 73.3-91.43.

Head: brownish-yellow to dark brown; head covered in a dense layer of appressed hairs, with scattered short erect hairs near vertex; head broader than long, though becoming narrower around 3 prominent ocelli; 12 segmented, incrassate antennae; scape surpasses posterior margin by about half length of pedicel; clypeus broad, slightly medially convex, with scattered erect hairs throughout; mandibles broad with 5 distinct teeth; 2nd and 3rd teeth from apical smaller than others; a short diastema often found between 4th and 5th teeth; dorsal surface of mandible hairy (approximately 15 hairs); hairs toward masticatory margin often surpass length of teeth. Mesosoma: brownish-yellow to dark brown; pronotum narrow and collar-like, overarched by broadly rounded mesonotum; mesonotum with dense layer of appressed hairs to short erect hairs; longest and most erect hairs found on scutellum; propodeum rounded, with layer of appressed hairs to erect hairs; declivity not distinct from propodeum. Gaster: petiole thick and erect, rounded apically; petiole can reach height of propodeum; gaster brownish-yellow to dark brown; covered in a dense layer of appressed hairs, with scattered suberect to erect hairs throughout. Genitalia: in lateral view, parameres long, taper to rounded apices; parameres with erect hairs throughout, shorter and more abundant erect hairs at apices; cuspi short and rounded, reaching only approximately 1/4 length of digiti; cuspi with peg-like teeth at apices; digiti long and broad, plate-like with broadly rounded apices, with peg-like teeth where cuspi meet.

References