Cephalotes nilpiei, De Andrade, 1999

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 : 40-42

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



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Cephalotes nilpiei


Cephalotes nilpiei

Figs. 46 View Figure 46 a-c, 47a-c, 48

Holotype: BRAZIL, Rio de Janeiro, Parque Nacional de ltatiaia , 15.xii.1966, 950- 1000m, H. Reichardt [ MZSP] [examined].

Additional material examined: Brazil, MG, Santana do Riacho, Capão, 1253m, -19.206740 -43.495630, S. Powell, 31.vii.2018 /C18- 208 (3 gynes, 3 males) [ DZUP].

Gyne measurements ( N =3): HL 1.73-1.75; HW 1.55; EL 0.35; PW 1.43-1.48; WL 2.15-2.20; PTL 0.63-0.68; PTW 0.28-0.35; PPL 0.78-0.80; PPW 0.30-0.38; GL 2.60-2.70; HBL 0.54-0.58; HBW 0.18-0.20; TL 7.48- 8.02; CI 88.6-89.8; OI 22.6; PI 84.4-84.6; HBI 33.3-37.0.

Worker and soldier descriptions can be found in De Andrade and Baroni Urbani, 1999, page 381.

Gyne (first description): Body black to brownish; frontal lobes, lateral margins of pronotum and propodeum, and legs brownish to ferruginous. First gastral tergite with an anterior and a posterior pair of yellowish spots, each one occupying more than one third of the first tergite length ( Fig. 46 View Figure 46 ).

Mandibles and dorsum of head foveate; anterolateral portion of cephalic disc rugose with sparse foveae ( Fig. 46a View Figure 46 ); ventral face of head longitudinally rugose-microalveolate.Declivous face of propodeum, legs and gaster microalveolate. Dorsum of mesosoma, petiole and postpetiole microalveolate with shallow foveae ( Fig. 46c View Figure 46 ); lateral of mesosoma microalveolate. Propleura and lower surface of metapleura weakly rugose. Anepisternum and katepisternum weakly foveate ( Fig. 46b View Figure 46 ). Dorsum of gaster anteriorly finely rugose ( Fig. 46c View Figure 46 ).

Body with appressed canaliculate hairs. Mandibles, mesosoma, petiole and postpetiole with short erect simple hairs; mandibles and anterior margin of clypeus with short erect clavate hairs ( Fig. 46a View Figure 46 ). Gaster with appressed simplehairs and someshort erecthairs ( Fig. 46b View Figure 46 ).

Head longer thanwide ( CI 88.6-89.8). Mandibleswith a longitudinal lateral angle. Clypeus without pair of denticles ( Fig. 46a View Figure 46 ). Dorsum of head discshaped, slightly concave anteriorly. Frontal carinaecrenulate anteriorly. Antennae with a three-segmented club. Roof of antennal scrobes with lateral carinae without projections.Lateroventral margins of head without carinae. Vertexal corners forming a pair of broad projections ( Fig. 46c View Figure 46 ).

Indorsalview, anteriormarginofpronotumslightlyrounded, anterolateral margins with blunt projection, pronotal carina weakly developed, crenulate, mediallyinterrupted ( Fig. 46c View Figure 46 ). Dorsally, mesoscutumsubtriangular, anteriormargin convex; notauli absent; parapsidial lines visible and parallel; transscutal line reaching lateral margins of mesosoma; scutoscutellar groove impressed, arched, and scrobiculate; scutellum well delimited and broader anteriorly; axillae acute posteriorly ( Fig. 46c View Figure 46 ). Laterally, mesopleural groove dividing anepisternum and katepisternum; metapleura divided in upper metapleura and lower metapleura by groove; metapleuropropodeal groove not impressed ( Fig. 46b View Figure 46 ). In dorsal view, posterior margin of propodeum concave with a pair of short, blunt denticles ( Fig. 46c View Figure 46 ). Wings unknown.

In dorsal view, petiole subrectangular, anterior margin concave and lateral margins with a tiny denticle ( Fig. 46c View Figure 46 ), subpetiolar process narrowwithan acuteprojection anteriorly ( Fig.46b View Figure 46 ). Postpetiole longer and wider than petiole, without dorsal elevations, with lateral blunt projections ( Fig. 46c View Figure 46 ), subpostpetiolar process short and compressed anteroposteriorly ( Fig. 46b View Figure 46 ).

Gaster elongatewith anarrow anteriorlamellar expansion ( Fig.46c View Figure 46 ).

Malemeasurements ( N =3): HL 0.58-0.64; HW 0.93-1.00; EL 0.38; PW 1.03-1.10; WL 1.48-1.60; PTL 0.40-0.45; PTW 0.30-0.32; PPL 0.40-0.45; PPW 0.28-0.30; GL 0.93-0.98; HBL 0.54-0.56; HBW 0.8; TL 3.82-4.07; CI 153-166; OI 37.5-40.5; PI 125-140; HBI 14.3-14.8.

Male (first description): Body predominantly black; apices of femora, tibiae andtarsi, and edges of each sternite and tergite brownish to yellowish ( Fig. 47b View Figure 47 ).

Mandibles, head, pronotum and metanotum microalveolate with sparseshallow foveae ( Fig.47 View Figure 47 ). Anepisternum, katepisternum and lower mesopleuron rugose; upper mesopleuron and propodeum scabrous ( Fig. 47b View Figure 47 ). Legs, petiole, postpetiole and gaster weakly microalveolate ( Fig. 47c View Figure 47 ).

Body with long and flexuous hairs, more abundant on mandibles, dorsum of head anddorsum of mesosoma. Legswith long hairs only in the internal face of coxae and femur. Hairs shorter on gaster ( Fig. 47b View Figure 47 ).

Head widerthan longer ( CI 153-166), broader posteriorly. Mandibles with one to three apical teeth, lateral angle absent ( Fig. 47a View Figure 47 ). Clypeus with a median elevation, posteriormargin rounded. Frontal carinae not extending posteriorly. The central portion ofhead slightly elevated. Eyes occupying more than half of head length ( Fig. 47a View Figure 47 ). Ocelli positioned at a central elevation. Antenna as the genus description.

Indorsalview,anteriormarginofpronotumslightlyrounded, laterally angular ( Fig.47c View Figure 47 ). Mesoscutum subtriangular; notauli deeply impressed; parapsidial linesvisible andparallel; transscutal linereaching the lateral margins of mesosoma; scutoscutellar groove deeply impressed, arched, and scrobiculate; scutellum well delimited and broader anteriorly; axillae with posterior denticles ( Fig.47c View Figure 47 ). Laterally, mesopleuralgroove dividinganepisternumand katepisternum; metapleuradivided inupper metapleura and lower metapleura by a groove; metapleuropropodeal groove inconspicuous ( Fig. 47b View Figure 47 ). Dorsal face of propodeum straight and with a rounded angle ( Fig. 47b View Figure 47 ). Wings as in the genus description.

In dorsal view, petiole and postpetiole wider than longer, laterally rounded, without lateral or dorsal projections, subpetiolar and subpostpetiolar process weakly developed ( Fig. 47c View Figure 47 ).

Gaster as long as mesosoma. The first tergite narrower than mesosoma and occupying half or less than the total length of gaster ( Fig. 47b View Figure 47 ), without anterior projection. ( Fig. 47c View Figure 47 ).


Brazil, Sao Paulo, Sao Paulo, Museu de Zoologia da Universidade de Sao Paulo


Brazil, Parana, Curitiba, Universidade Federal do Parana, Museu de Entomologia Pe. Jesus Santiago Moure


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