Camponotus JTL-015 (cf. christopherseni) Longino ms.

Formicinae, Formicidae, Hymenoptera, Insecta, Arthropoda, Animalia

worker lateral view

worker face view

major lateral view

major face view


Costa Rica (La Selva and adjacent Atlantic slope to 500m).


Minor worker: head subquadrate; scapes with no erect setae; lateral margins of head with no projecting setae; dorsal and lateral faces of pronotum sharply differentiated, meeting at a slightly projecting keel anterolaterally, keel fading posteriorly; dorsal and lateral faces of propodeum meeting at distinct angle; dorsal and posterior faces of propodeum distinct, meeting at an angle, subequal in length; dorsal profile of pronotum, mesonotum, and dorsal face of propodeum forming even convexity; anterior and posterior faces of petiole converge to sharp transverse crest at apex; first gastral tergite with moderately abundant appressed yellow pubescence, moderately abundant erect setae; face and mesosoma densely micropunctate, sublucid with bronze reflections; gaster shagreened, mat; integument generally black, legs and scapes orange, posterior borders of gastral tegites yellow, forming sharply defined bands.

May differ from JTL-027 in slightly more arched mesosoma, relatively less differentiated dorsal and posterior faces of propodeum. Form of JTL-027 that is sympatric with JTL-015 has dense yellow pubescence on first gastral tergite, 2-3 erect setae on cheeks near mandibular insertions.

Major worker: face subquadrate; face yellow up to below eyes; lateral margins of head and anterior face in general with no erect setae, a few short, flattened setae on clypeus.

Similar species: cuneidorsus, JTL-027.

Natural History

This species is common in canopy fogging samples from La Selva, and is occasionally collected in recent treefalls. I have seen one nest, which was under an epiphyte mat. This suggests a similar biology to JTL-027, a very similar species.

Page author:

John T. Longino, The Evergreen State College, Olympia WA 98505

Date of this version: 22 January 2002
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