Cephalotes depressus (Klug, 1824)

Oliveira, Aline Machado, Powell, Scott & Feitosa, Rodrigo Machado, 2021, A taxonomic study of the Brazilian turtle ants (Formicidae: Myrmicinae: Cephalotes), Revista Brasileira de Entomologia 65 (3), No. e 20210028, pp. 1-52 : 24

publication ID

https://doi.org/ 10.1590/1806-9665-RBENT-2021-0028

DOI

https://doi.org/10.5281/zenodo.5512289

persistent identifier

https://treatment.plazi.org/id/038587E5-FFE3-FFD7-FFDF-F893D1B4F822

treatment provided by

Carolina

scientific name

Cephalotes depressus
status

 

The depressus species group

( Figs. 25 View Figure 25 , 26 View Figure 26 )

The depressus group is composed by the former pavonii group of Paracryptocerus byKempf (1951), andthespeciesC. betoi andC. palustris , described by De Andrade in De Andrade and Baroni Urbani (1999). In the recentmolecularphylogeny (Priceetal., 2016, seetheirFig. S3)thisgroupis sistertotheclade formedbycoffeae,patei, emeryi andcrenaticeps groups. The majority of speciesin the depressus group occur in Brazil. Cephalotes cristatus is the only member that does not occur in Brazil.

Diagnosis: In workers and soldiers, dorsal and declivous face of propodeumcontinuous,notmeetinginadistinct propodealangle,withtwo pairs of spines, the anterior one longer than the posterior one ( Fig. 25 View Figure 25 d-i).

Brazilian species of depressus group

Cephalotes betoi De Andrade, 1999

Cephalotes borgmeieri (Kempf, 1951)

Obsolete combination: Paracryptocerus borgmeieri Cephalotes cordatus (Smith, 1853)

Obsolete combination: Cryptocerus cordatus

= Cephalotes cordatus boliviensis (Santschi, 1921)

Obsolete combination: Cryptocerus cordatus boliviensis Cephalotes depressus (Klug, 1824)

Obsolete combination: Cryptocerus depressus

= Cephalotes depressus sorocabensis (Forel, 1912)

Obsolete combination: Cryptocerus depressus sorocabensis Cephalotes eduarduli (Forel, 1921)

Obsolete combination: Cryptocerus eduarduli

Cephalotes palustris De Andrade, 1999

Cephalotes pavonii (Latreille, 1809)

Obsolete combination: Cryptocerus pavonii

Key to the identification of Brazilian species of the depressus group of Cephalotes based on workers and soldiers

( Figs. 25 View Figure 25 a-o)

1 Indorsal view, postpetiole at most twice wider than long ( Fig.25k View Figure 25 )......... ..................................................................................................................... C. depressus

1’ In dorsal view, postpetiole three to five times wider than long ( Fig. 25 View Figure 25 d-g, j, l, m).................................................................................................2

2 Erecthairspresentonmesosoma,petiole,postpetioleandgaster ( Fig.25n View Figure 25 ) ................................................................................................................................... C.eduarduli

2’Erect hairsmostlyabsent,presentonlyontheapicesofspines ( Fig.25o View Figure 25 )...3

3 In frontal view, color of thefrontal lobes similar to the rest of the head ( Fig. 25a View Figure 25 ). In dorsal view, posterior margins of petiolar spines weakly curved backwards ( Fig. 25e View Figure 25 - dotted).................................... C. borgmeieri

3’ In frontal view, color of frontal lobes lighter than rest of the head ( Fig. 25b, c View Figure 25 ). In dorsal view, posterior margins of petiolarspines strongly curved backwards ( Fig. 25f, g, j, l, m View Figure 25 - dotted)............................................4

4 In dorsal view, anterior and lateral margins of the petiole meeting in a distinct angle ( Fig. 25g, m View Figure 25 - line)..................................................................5

4’ Indorsal view, anterior andlateral margins of thepetiole continuously curved ( Fig. 25e, f, j, l View Figure 25 - line)..............................................................................6

5 Posteriorthird of declivous faceof propodeumstriate ( Fig.25h View Figure 25 )...... C. betoi

5’ Posteriorthird of declivousface of propodeum notstriate; some striae can be present on propodeum, but not reaching the posterior third ( Fig. 25i View Figure 25 )........................................................................................................ C. pavonii

6 Indorsalview, lateral expansionsof pronotum subrectangular, followed by a shorter projection ( Fig. 25d View Figure 25 )................................................. C. palustris

6’ Indorsal view, lateral expansionsof pronotum triangular ( Fig.25f View Figure 25 )........ ....................................................................................................................... C. cordatus

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hymenoptera

Family

Formicidae

Genus

Cephalotes