Anochetus
Creators: name: Shattuck, Steven O.
name: Slipinska, Ewa
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Formicidae
Anochetus

description: Key to Australian Anochetus species based on workers
1. Propodeal angles produced as spines...................................................................... 2
- Propodeal angles more or less rounded and lacking spines..................................................... 5
2. Sculpture on front of head extending only slightly beyond eyes (approximately half head length); eye larger (EL> 0.27mm); scapes surpassing posterolateral corners ('lobes') of head (SI> 100) (Fig. 4); numerous erect hairs on scapes............. 3
- Sculpture on front of head extending well beyond eyes (greater than half head length); eye smaller (EL <0.22mm); scapes not reaching posterolateral corners ('lobes') of head (SI <100) (Fig. 4); scapes with limited number of erect hairs............ 4
3. Smaller body (HL <1.62mm, HW <1.44mm); scapes shorter (SL <1.50mm) (Fig. 4); sides of propodeum with coarse striations; mesonotum smooth and shining; petiolar node in side view with posterior surface less convex; pubescence on scapes limited, some areas devoid of hairs, the individual hairs only slightly overlapping........................... veronicae
- Body larger (HL> 1.78mm, HW> 1.53mm); scapes longer (SL> 1.60mm) (Fig. 4); sides of propodeum smooth and shining; mesonotum with a few transverse, irregular ridges or striations; petiolar node in side view with anterior surface more convex; pubescence on scapes abundant and covering the entire scape, the individual hairs strongly overlapping.............. alae
4. Pronotum shining but with shallow, weakly defined oval punctures; propodeal spines directed slightly posteriorly so that in profile they form an angle with the posterior propodeal face at their bases; dorsum of propodeum with appressed hairs; hind tibiae with decumbent hairs which are restricted to the inner surfaces.................................. paripungens
- Pronotum smooth and shining; propodeal spines pointed anteriorly and forming a continuous surface with the posterior propodeal face in profile; dorsum of propodeum with erect hairs; hind tibiae with erect hairs on all surfaces............ wiesiae
5. Sculpture on front of head extending well above eyes and reaching (or nearly reaching) the posterior margin of head..... 6
- Sculpture on front of head extending only slightly beyond eyes and ending well before posterior margin............... 7
6. Sculpturing on dorsal surface of pronotum variable, ranging from punctate medially and striate-rugulose laterally to entirely striate-rugulose, sometimes with arching striations anteriorly (which are developed to varying degrees); mesonotum striaterugulose; sides of propodeum smooth and shining anteriorly, sculptured posteriorly; eyes smaller (EL <0.16mm)... graeffei
- Dorsal surface of pronotum with distinct longitudinal striations (never rugulose); mesonotum smooth, without sculpture; sides of propodeum with coarse striation on entire surface; eyes larger (EL> 0.22mm)............................ victoriae
7. Petiolar node in front view tapering upwards into a narrowly rounded point................................. isolatus
- Petiolar node in front view narrowing only slightly dorsally, the apex broad...................................... 8
8. Mesonotum with transverse striations; propodeum with dorsal surface rounding into sides and posterior face, the angle obscured; in side view petiolar node swollen basally and with a strong angle just below mid-height............... turneri
- Mesonotum smooth and without sculpturing; propodeum with dorsal surface more or less flattened and with distinct propodeal angle; in side view anterior face of petiolar node weakly concave and never angled near mid-height................... 9
9. Entire pronotum and sides of propodeum smooth and shining; dorsal surface of propodeum with weak transverse striations (nearly absent in some specimens); hairs on dorsal surface of propodeum very short, scattered and appressed.......... 10
- Pronotum partially to completely sculptured; sides of propodeum with coarse striations, dorsal surface coarsely sculptured with combination of irregular rugosity and striations; hairs on dorsal surface of propodeum longer, erect or semi-erect... 12
10. Eyes small (EL <0.25mm, EI <20) (Fig. 7A); scapes shorter (SL <1.00mm) (Fig. 7 B); legs shorter (MTL <0.80mm, HFL <1.10mm) (restricted to the northern Kimberley Region)................................................... avius
- Eyes large (EL> 0.30mm, EI> 22) (Fig. 7A); scapes longer (SL> 1.05mm) (Fig. 7 B); legs longer (MTL> 0.85mm, HFL> 1.18mm).......................................................................................... 11
11. Propodeum with transverse striations extending slightly laterally onto the sides to at least the level of the spiracle; scapes longer, reaching posterolateral corners ('lobes') of head (SL> 1.40mm); erect hairs on hind tibiae uniformly distributed on all surfaces; eyes expanded laterally so that in full face view they form outer margin of head........................ renatae
- Propodeum with weak transverse striations dorsally which rarely extend onto the sides (when present laterally they are separated from the dorsal sculpturing by a smooth gap); scapes shorter, not reaching posterolateral corners ('lobes') of head (SL <1.35mm); erect hairs on hind tibia reduced on outer surface compared to inner surface; eyes narrower so that in full face view they do not extend beyond head capsule........................................................... armstrongi
12. Petiolar node in side view tapering gradually to apex in the form of an inverted “V”, with the striations fading towards the summit; propodeal angle sharply rounded........................................................... rectangularis
- Petiolar node in side view narrowing only slightly towards the apex, trapezoid-shaped, with distinct striations along entire height; propodeal angle more gently rounded............................................................. 13
13. Dorsum and sides of pronotum with distinct longitudinal striations; head shorter (HL <1.04mm); petiolar node narrower (maximum width <0.28mm)........................................................................ rufostenus
- Dorsum of pronotum smooth and shining, sides with distinct striations; head longer (HL> 1.11mm); petiolar node wider (maximum width> 0.28mm)......................................................................... rufolatus
description: Published as part of Shattuck, Steven O. & Slipinska, Ewa, 2012, Revision of the Australian species of the ant genus Anochetus (Hymenoptera: Formicidae), pp. 1-28 in Zootaxa 3426 on page 5, DOI: 10.11646/zootaxa.3426.1.1, http://zenodo.org/record/282010