This species is known from mature wet forest at Rancho Quemado on the Osa Peninsula. I collected it from three different Ocotea nicaraguensis trees, and it appears to have a biology similar to M. flavocotea and others.
Costa Rica. In Costa Rica it occurs at Rancho Quemado on the Osa Peninsula.
Figures 1, 4, 7, 8, 9
Diagnosis
Worker with antenna 9-segmented, maxillary palpus 5-segmented, color yellow. Queen black; mandible punctatorugose; face smooth and shining; sides of head with short appressed to suberect pubescence, no longer erect setae; maxillary palpus 6-segmented; CI 79-84.
Worker
Same as M. flavocotea but with tendency to develop faint infuscated bands on gastral tergites.
Measurements: HL 0.518-0.521, HW 0.479-0.511, SL 0.256-0.265, EL 0.097-0.105, CI 92-98 (n=3).
Queen
Antenna 9-segmented; maxillary palpus 6-segmented; labrum short, bilobed, not covering mouthparts; dorsal surface of mandible punctatorugose; face and clypeus largely smooth, variably roughened anteriorly; in full face view, with abundant short suberect setae on rear and side margins of head, longer setae on posterolateral vertex; ventral surface of head with abundant short erect setae; scapes with abundant erect to suberect setae, longer setae subequal to width of scape; outer surface of hind tibia with abundant short subdecumbent setae, longer setae shorter than width of tibia; color solid black.
Measurements: HL 1.181-1.226, HW 0.971-0.997, SL 0.491-0.507, EL 0.283-0.303, OW 0.062-0.081, OD 0.173-0.185, CI 79-84, OI 28-31, OcI 5-7 (n=3).
Male
Unknown.
Etymology
The name refers to the Osa Peninsula, which is the type locality.
Range
Costa Rica. In Costa Rica it occurs at Rancho Quemado on the Osa Peninsula.
Biology
This species is known from mature wet forest at Rancho Quemado on the Osa Peninsula. I collected it from three different Ocotea nicaraguensis trees, and it appears to have a biology similar to M. flavocotea and others.
Material Examined
COSTA RICA , Puntarenas : Rancho Quemado, Osa Peninsula , 8°42’N , 83°33’W , 200m ( J. Longino , 3 collections).
Myrmelachista osa is een mierensoort uit de onderfamilie van de schubmieren (Formicinae).[1][2] De wetenschappelijke naam van de soort is voor het eerst geldig gepubliceerd in 2006 door Longino.
Bronnen, noten en/of referenties
