Ecitonides fraterculus Borgmeier 1959

Ecitonides fraterculus Borgmeier, 1959 Figs 3, 9 F, M, 10 F, 13 L, M Ecitonides fraterculus Borgmeier 1959: 3. Type locality. Brazil, Amapá: Oiapoque, 3°49'29"N, 51°49'05"W, May. 1959, M. Alvarenga leg. Type specimen examined. Holotype (MZSP) male, dry pinned, with genitalia in a separate slide. Original labels: “ Typus ” // “ OIAPOQUE - Amapá, Brasil, V. 1959. M Alvarenga ” // “ Eciton praedator ” // “ Ecitonides fraterculus B. Holotype. det. Borgmeier. ” // “ Coleção BORGMEIER Fapesp - 1967 ” // “ MZSP 00528 ” // “ MZSP 00528 ”. Diagnosis. Body less robust, head oval, pronotum longer than wide and subconical, and prominent tubercles over the body as in E. brevicornis, E. longiceps, E. soesilae, E. tuberculosus, and E. volans. From E. brevicornis, it differs by antennomeres 6–10 transverse (as long as wide in E. brevicornis) and by each elytron with three rows of tubercles (4 in E. brevicornis), from E. longiceps by larger eyes, from E. tuberculosus by antennae of the same length as head (~ 2 × longer than head in E. tuberculosus), and from E. soesilae and E. volans by each elytron with three rows of tubercles (5 rows in other two species). Additional characters. Antennae (Fig. 9 F) with scape as long as antennomeres 2–6 combined; antennomeres 2 and 3 subequal in size; antennomeres 2–5 longer than wide; antennomeres 6–10 transverse, slightly increasing in width towards apex; antennomere 11 shorter than 10; labrum (Fig. 10 F) with three denticles, median one deeply emarginate and lateral pair closer to lateral emargination than to median denticle. Abdomen with tergites III – V and paratergites of III and IV bearing small tubercles; sternites III – VI with ridges extending beyond posterior margin and few lateral tubercles. Aedeagus (Fig. 13 L, M) with median lobe short and stout, with truncate and short dorsal strut; apex of median lobe somewhat wide rounded. Measurements. TL: 5.0; HL: 1.31; HW: 0.68; PL: 1.1; PW: 0.69; EL: 1.05; EW: 1.05; LA: 0.7. Distribution. BRAZIL, Amapá (Fig. 15). Host ant. Labidus praedator.