Nogueirapis, Moure, 1953

Ayala, Ricardo & Engel, Michael S., 2014, A new stingless bee species of the genus Nogueirapis from Costa Rica (Hymenoptera: Apidae), Journal of Melittology 37, pp. 1-9 : 7

Key to Species of Nogueirapis

(workers only)

1. Mesoscutellum, sides of mesosoma, propodeum, and metasoma yellowish or yellowish brown ......................................................................................................... 2

—. Mesoscutellum, sides of mesosoma, propodeum, and metasoma dark brown to black .......................................................... N. mirandula (Cockerell) (melanic form)

2(1). Dark area on frons not completely divided medially in front of median ocellus by yellow or ferruginous integument, yellow or ferruginous facial markings well separated from median ocellus ( Fig. 4 ) ........................................................... 3

—. Dark area of frons completely divided medially by yellow or ferruginous integument to the level of median ocellus ( Figs. 5, 6 ) ................................................ 4

3(2). Dark area of frons extending paramedially toward antennal toruli, such areas either terminating midway between ocelli and antennal toruli or sometimes continuing to toruli as light brown; mesoscutum yellow ferruginous; metatibia yellow ferruginous except outer apical third dark brown ......... N. butteli (Friese)

—. Dark area on frons extending paramedially toward antennal toruli but do not meet upper torular margins, laterally extended ventrally as narrow lines nearing reaching epistomal sulcus outside anterior tentorial pit, separating narrow yellow paraocular area from yellow of face bordering clypeus and antennal toruli ( Fig. 4 ); mesoscutum black ( Fig. 2 ); metatibia entirely dark brown ( Figs. 1, 3 ) ............................................................................................... N. costaricana , n. sp.

4(2). Larger species (head width 1.86 mm, forewing length 4.00 mm); dark area of frons completely divided medially by narrow line of yellow/ferruginous integument tapering in width to median ocellus ......................................................... .............................................................. N. mirandula (Cockerell) (ferruginous form)

—. Smaller species (head width 1.64 mm, forewing length 3.60 mm); dark area of frons completely divided medially by line of yellow integument that widens toward median ocellus ............................................. N. minor (Moure & Camargo)

Figures

Figures 4–6. Facial aspects of workers of Nogueirapis costaricana, new species, and the melanic and ferruginous forms of N. mirandula (Cockerell). 4. N. costaricana, holotype. 5. N. mirandula, melanic form. 6. N. mirandula, ferruginous form.

Figures 1–3. Holotype worker of Nogueirapis costaricana, new species. 1. Lateral habitus. 2. Dorsal habitus. 3. Detail of metatibia.