Rogeria subarmata

The type series was collected from the stomach of an anteater (Tamandua tetradactyla).

Identification
Kugler (1994) - scandens species group. WL 0.78-1.00mm. Eye with 30-53 facets. Propodeal spines short (PSI 0.09-0.12). Pygidium with a pair of median piligerous tubercles near caudal margin. Strong macrosculpture on mesosoma and petiolar node. Erect hairs not as rigid as in scandens; tips acute.

Distribution
Brazil and Venezuela

Distribution based on Regional Taxon Lists
Neotropical Region: Brazil, Ecuador, Venezuela.

Castes
Only known from workers.

Nomenclature

 *  subarmata. Irogera subarmata Kempf, 1961d: 438, figs. 1-4 (w.) BRAZIL. Combination in Rogeria: Kempf, 1965: 185. See also: Kugler, C. 1994: 40.

Worker
Kugler (1994) - Workers. —TL 2.9-3.7, HL 0.69-0.87, HW 0.60-0.75, SL 0.46-0.57, EL 0.12-0.16 (30-53 facets), PW 0.45-0.57, WL 0.78-1.00, SpL 0.08-0.10, PetL 0.37-0.47, PpetL 0.20-0.26mm, CI 0.86-0.89, OI 0.20-0.23, SI 0.73-0.77, PSI 0.09-0.12. N=6

Additions to Kempf's (1962a) description. Mandibles usually with 5 teeth that decrease in size basad. Sometimes basal tooth replaced by two very small teeth, or 1-2 denticles are found between the basal and penultimate tooth. Clypeal apron weakly notched medially to evenly convex. Frontal lobes narrow as in scandens. Nuchal grooves shallow, forming only a weak notch in lateral view. Figs. 22-23 show the range of propodeal spine size and angle, but tips sometimes more rounded. Petiole clavate to rather distinctly set off from peduncles. Postpetiole from above much as in Fig. 21. Posterior surface of pygidium with a caudal pair of long, columnar, piligerous tubercles that are visible at 50X with a dissection microscope. Sting apparatus nearly identical to that of inermis; sting as in pellecta.

Median clypeus with 1-2 pair of fairly distinct extra carinulae lateral to the usual pair. Posterior head with transversely arching rugose-areolate macrosculpture. Head covered with dense, indistinctly microareolate roughening that appears punctate or granular at lower magnifications. Mesosoma dorsum longitudinally rugose; rugae with numerous lateral spurs that occasionally connect rugae on shoulders. Macrosculpture on sides of mesosoma and dorsal face of propodeum confusedly rugose to rugose-areolate. Mesosoma microsculpture as on head. Petiolar node vermiculate-rugose to rugose-areolate. Postpetiolar node similar, but rugae straighter, more effaced. Microsculpture on nodes slightly weaker than on head and mesosoma.

Scapes and extensor surfaces of legs lack erect hair. Rest of body with both short, appressed-decumbent and longer, erect-suberect hairs. Erect hairs are nearly as stiff as those of scandens and terescandens, but seem to have acute tips.

Color dark brown to yellowish-brown with a reddish tint on mesosoma, waist and middle of gaster; appendages and ends of gaster lighter.

Type Material
Kugler (1994) - Holotype and paratype workers, BRAZIL: Guanabara, Rio de Janeiro, Deodoro (A. Ronna) [12 of 38 paratypes examined; holotype not examined].

References based on Global Ant Biodiversity Informatics

 * Almeida Filho A. J., L. da S. Fontes, and V. Arthur. 2006. Estudo da diversidade de Formigas urbanos no municipio de Teresina - Piaui. Rev. Ecossistema 31(1-2): 77-80.
 * Alonso L. E., J. Persaud, and A. Williams. 2016. Biodiversity assessment survey of the south Rupununi Savannah, Guyana. BAT Survey Report No.1, 306 pages.
 * Franco W., N. Ladino, J. H. C. Delabie, A. Dejean, J. Orivel, M. Fichaux, S. Groc, M. Leponce, and R. M. Feitosa. 2019. First checklist of the ants (Hymenoptera: Formicidae) of French Guiana. Zootaxa 4674(5): 509-543.
 * Gibernau M., J. Orivel, J. H. C. Delabie, D. Barabe, and A. Dejean. 2007. An asymmetrical relationship between an arboreal ponerine ant and a trash-basket epiphyte (Araceae). Biological Journal of the Linnean Society 91: 341-346.
 * Groc S., J. H. C. Delabie, F. Fernandez, M. Leponce, J. Orivel, R. Silvestre, Heraldo L. Vasconcelos, and A. Dejean. 2013. Leaf-litter ant communities (Hymenoptera: Formicidae) in a pristine Guianese rainforest: stable functional structure versus high species turnover. Myrmecological News 19: 43-51.
 * Kempf W. W. 1975. Miscellaneous studies on neotropical ants. VI. (Hymenoptera, Formicidae). Studia Entomologica 18: 341-380.
 * Leponce M., J. H. C. Delabie, J. Orivel, J. Jacquemin, M. Calvo Martin, and A. Dejean. 2019. Tree-dwelling ant survey (Hymenoptera, Formicidae) in Mitaraka, French Guiana, in Touroult J. (ed.), “Our Planet Reviewed” 2015 large-scale biotic survey in Mitaraka, French Guiana. Zoosystema 41 (10): 163-179.
 * Santos P. P., A. Vasconcelos, B. Jahyny, and J. H. C. Delabie. 2010. Ant fauna (Hymenoptera, Formicidae) associated to arboreal nests of Nasutitermes spp. (Isoptera, Termitidae) in a cacao plantation in southeastern Bahia, Brazil. Revista Brasileira de Entomologia 54(3): 450-454.
 * Silva R.R., and C. R. F. Brandao. 2014. Ecosystem-Wide Morphological Structure of Leaf-Litter Ant Communities along a Tropical Latitudinal Gradient. PLoSONE 9(3): e93049. doi:10.1371/journal.pone.0093049