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The syntypes of P. susannae and P. obscurior are very similar in all respects but color. The syntypes of P. susannae are yellow; those of P. obscurior are dark brown. The key in Wilson separates the species on relative scape length in the major, with P. obscurior purported to have relatively longer scapes. However, measurements of the types reveal that the lectotype of P. obscurior has a SI that is actually lower than that of syntypes of P. susannae.
Pheidole susannae is a relatively common species found in disturbed habitats throughout the Neotropics. It appears quite uniform in morphology across its range. Most specimens are dark red brown. The types from Guatemala and a few collections from El Salvador and Nicaragua are yellow.
|Pheidole susannae||Longino, J. T., 2009, Additions to the taxonomy of New World Pheidole (Hymenoptera: Formicidae)., Zootaxa 2181, pp. 1-90: 79-80, (download)||79-80||22820|
|Pheidole susannae||Wilson, E. O., 2003, Pheidole in the New World. A dominant, hyperdiverse ant genus., Cambridge, MA: Harvard University Press: 351, (download)||351||20017|
Found most commonly in these habitats: 53 times found in tropical rainforest, 22 times found in lowland wet forest, 15 times found in 2º wet forest, 21 times found in 2º lowland rainforest, 10 times found in tropical wet forest, 14 times found in tropical moist forest, 5 times found in old cacao plantation, 4 times found in 2nd growth forest, 3 times found in 2nd growth dry forest, 3 times found in tropical dry forest, ...
Found most commonly in these microhabitats: 117 times at bait, 40 times ex sifted leaf litter, 6 times beating vegetation, 1 times nest in clay bank, 3 times at bait on ground, 1 times on trail, 1 times nest in dead wood, 3 times foragers, 2 times at baits, 1 times nest in fence post, 1 times ex sifted litter, ...
Collected most commonly using these methods: 112 times Baiting, 23 times search, 23 times MiniWinkler, 11 times Winkler, 10 times MaxiWinkler, 8 times bait, 6 times Fogging, 6 times Beating, 2 times Berlese, 1 times Malaise, 1 times pan trap, ...
Elevations: collected from 5 - 1480 meters, 258 meters average
Type specimens: Lectotype of Pheidole partita: casent0916067; Lectotype of Pheidole susannae obscurior: jtlc000015316; paralectotype of Pheidole partita: casent0919784; paralectotype of Pheidole susannae obscurior: jtlc000015317; syntype of Pheidole susannae: jtlc000015334, jtlc000015335; syntype of Pheidole susannae atricolor: casent0901591, casent0901592; syntype of Pheidole incisa evoluta: casent0913456, casent0913457; syntype of Pheidole susannae atricolor: jtlc000015332, jtlc000015333; type of Pheidole susannae: focol0620; type of Pheidole susannae r. atricolor: focol0241-1, focol0241-2, focol0241-3, focol0241-4; Type of unavailable quadrinomial: Pheidole susannae atricolor fortunata: casent0908122, casent0908123