(Plate with preorbital carina of all species, click here)
| Genus List | Species List | Genus Overview |
10a. Preorbital carina curved inward, arcing obliquely toward frontal carina: 20
10b. Preorbital carina sinuous or straight, extending past eye and directed toward posterolateral vertex margin: 50
(Plate with preorbital carina of all species, click here)
20a. Propodeal spines long, much longer than other tubercles on dorsal face of propodeum; scapes long, extending well beyond margin of vertex: 30
20b. Propodeal spines short, not or barely differentiated from other tubercles on dorsal face of propodeum; scapes shorter, just reaching or slightly surpassing vertex margin: 40
30a. Color orange brown; promesonotum with four principal pairs of spines: intermedius
30b. Color dark red brown; promesonotum with three principal pairs of spines, lacking pair anterior to metanotal groove: JTL-004
40a. Frontal lobes strongly angulate: cornetzi
40b. Frontal lobes more rounded: bugnioni
50a. Body covered with lanose pubescence, like Sericomyrmex: opulentus
50b. Body covered with short, stout setae: 60
60a. In face view with distinct lateral and posterolateral tubercles, such that margins of head are not rounded: 70
60b. In face view lateral and posterolateral tubercles weak to absent, such that sides of head appear more evenly rounded: 90
70a. Anterior pair of mesonotal spines short and blunt; frontal lobes evenly rounded: JTL-002
70b. Anterior pair of mesonotal spines conical, stout; frontal lobes evenly rounded or with anterolaterally projecting tooth: 80
80a. Propodeal spines and anterolateral pair of pronotal spines relatively large; frontal lobes evenly rounded or with at most small anterior tooth: zeteki
80b. Propodeal spines and anterolateral pair of pronotal spines relatively shorter; frontal lobes with pronounced anterolaterally projecting tooth: isthmicus
90a. Anterolateral pronotal tubercles relatively longer and thinner; posterolateral vertex margins with more developed tubercle; generally "spikier" in appearance: JTL-003
90b. Anterolateral pronotal tubercles relatively shorter and broader; posterolateral vertex margins with less developed tubercle (JTL-006 and JTL-003 appear to sort into two discrete morphological forms at 1100m and 1500m sites on the Barva Transect in Braulio Carrillo National Park, but the distinction is blurred in specimens from elsewhere in Costa Rica): JTL-006
Page author:
John T. Longino, The Evergreen State College, Olympia WA 98505 USA.longinoj@evergreen.edu
Go back to top