Key to Dorylus subgenera Queens

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This key is based on Gotwald, W. H., Jr. 1982. Army ants. Pp. 157-254 in: Hermann, H. R. (ed.) Social insects. Volume 4. New York: Academic Press, 385 pp.

1

• Antenna, 12 segments…..Dichthadia
• Antenna, 11 segments.....2

2

return to couplet .....1

• Posterior margin of pygidium with a deep, median, semicircular notch .....3
• Posterior margin of pygidium straight or only slightly concave, without a semicircular notch.....4

3

return to couplet .....2

• Propodeum in dorsal view wider than the pronotum; posterior angles of petiole considerably divergent…..Anomma
• Propodeum in dorsal view not as wide as pronotum; posterior angles of petiole only slightly divergent…..Dorylus s. str.

4

return to couplet .....2

• Posterior margin of pygidium straight; in dorsal view, hypopygium extending only a short distance beyond posterior margin of pygidium and terminating in two rounded, diverging lobes…..Alaopone
• Posterior margin of pygidium slightly concave; in dorsal view, hypopygium extending far beyond posterior margin of pygidium and divided by a median cleft so that it terminates in two apically pointed processes.....5

5

return to couplet .....4

• Hypopygium forming a dorsoventrally flattened plate, in dorsal view its median cleft ending considerably caudal of the posterior margin of the pygidium…..Typhlopone
• Hypopygium not forming a flattened plate, in dorsal view its median cleft appears to totally divide the hypopygium into two lateral parts…..Rhogmus