Temnothorax salvini clade

based on Prebus 2017

Introduction
A recent study (Prebus, 2017) provided evidence for the Nearctic origin of the crown Temnothorax, followed by a rapid radiation across the majority of the present-day range. The initial radiation resolved into seven large clades, including several lineages that dispersed to the Neotropics soon after the origin of the crown group. Among these early-arriving Neotropical lineages is the morphologically heterogenous salvini clade. You can learn more about Temnothorax clades in general here: and in Prebus, 2017.

Diagnosis
Based on the worker caste, the T. salvini clade lack a singular diagnostic feature, but can be diagnosed with the following combination of characters:
 * 1) Antennae composed of 12 antennomeres.
 * 2) Postpetiole moderately to very broad: 1.4 to 3 times as broad as the caudal cylinder in dorsal view (PWI 140-300); if less than 1.5 times, then antennal scapes are moderately short, failing to reach the posterior margin of the head by the maximum width of the antennal scape or less, and dorsum of propodeum lacks standing setae.
 * 3) Anterodorsal region of petiole with or without tubercles that are united by a transverse carina; if tubercles present, then median lobe of clypeus bearing many (> 3) fine carinae, femora incrassate (FI> 250), or, if femora not incrassate, then dorsum of propodeum lacks standing setae.
 * 4) Propodeum bearing teeth or spines; or, if propodeum is unarmed, then propodeum is strongly depressed below the level of the evenly convex promesonotum.
 * 5) Legs usually without long tapering setae, but if present, then medial lobe of clypeus bearing many (> 3) longitudinal carinae, or propodeum is strongly depressed below the level of the evenly convex promesonotum.

Identification
Key to Temnothorax clades

Key to Temnothorax salvini clade workers

Species
The species are organized into species group, an informal taxonomic ranking between genus and species. The species groups used here correspond to morphologically diagnosable groups of species which are supported as monophyletic groups by molecular evidence from the studies mentioned above.

acuminatus group

 * Temnothorax acuminatus
 * Temnothorax tuxtlanus

acutispinosus group

 * Temnothorax acutispinosus

altinodus group

 * Temnothorax altinodus

annexus group

 * Temnothorax annexus
 * Temnothorax arbustus
 * Temnothorax balnearius
 * Temnothorax obtusigaster
 * Temnothorax quercicola

augusti group

 * Temnothorax augusti
 * Temnothorax aureus
 * Temnothorax leucacanthoides
 * Temnothorax leucacanthus

casanovai group

 * Temnothorax casanovai

fuscatus group

 * Temnothorax fuscatus
 * Temnothorax nebliselva
 * Temnothorax ocarinae
 * Temnothorax skwarrae

goniops group

 * Temnothorax achii
 * Temnothorax goniops
 * Temnothorax huehuetenangoi
 * Temnothorax ixili
 * Temnothorax xincai

misomoschus group

 * Temnothorax misomoschus

pastinifer group

 * Temnothorax androsanus
 * Temnothorax nigricans
 * Temnothorax pastinifer
 * Temnothorax rutabulafer
 * Temnothorax schwarzi

pergandei group

 * Temnothorax bison
 * Temnothorax pergandei

pilicornis group

 * Temnothorax pilicornis

pulchellus group

 * Temnothorax agavicola
 * Temnothorax albispinus
 * Temnothorax bahoruco
 * Temnothorax balaclava
 * Temnothorax ciferrii
 * Temnothorax flavidulus
 * Temnothorax harlequina
 * Temnothorax hippolyta
 * Temnothorax laticrus
 * Temnothorax magnabulla
 * Temnothorax pulchellus
 * Temnothorax terricola
 * Temnothorax torrei
 * Temnothorax wettereri
 * Temnothorax wilsoni

rugosus group

 * Temnothorax parralensis
 * Temnothorax rugosus

salvini group

 * Temnothorax aztecoides
 * Temnothorax aztecus
 * Temnothorax fortispinosus
 * Temnothorax longinoi
 * Temnothorax longicaulis
 * Temnothorax paraztecus
 * Temnothorax parvidentatus
 * Temnothorax quetzal
 * Temnothorax salvini
 * Temnothorax terraztecus

subditivus group

 * Temnothorax politus
 * Temnothorax subditivus

tenuisculptus group

 * Temnothorax tenuisculptus

terrigena group

 * Temnothorax terrigena