Key to Hagensia species

This worker key is based on: Arnold, G. 1951. The genus Hagensia Forel (Formicidae). J. Entomol. Soc. South. Afr. 14:53-56.

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Hagensia

This key does not include the subspecies Hagensia havilandi fochi

1

 * Fovea on the mandibles shallow and transverse. Puncturation of the head resolvable under a magnification of 32 diameters. Length 9.3 - 9.5 mm . . . . . Hagensia peringueyi saldanhae


 * Fovea on the mandibles oblique and deep . . . . . 2

2
return to couplet #1


 * Whole body moderately shining, puncturation of the head very fine, the interspaces as wide as the punctures, resolvable only under a magnification of 45-50 diameters. Mandibles not striolate . . . . . 3


 * Whole body, or at least the head and thorax matt, very closely reticulatepunctate, the sculpture resolvable under a magnification of 30 diameters . . . . . 4

3
return to couplet #2
 * Length, excluding the mandibles, 11 mm . . . . . Hagensia peringueyi


 * Length, excluding the mandibles, 12 mm . . . . . Hagensia havilandi godfreyi

4
return to couplet #2
 * Mesonotum as long as wide. Mandibles striolate over the basal half. Abdomen microscopically transversely rugulose, and nitidulous. Length, excluding the mandibles, 12.5 mm . . . . . Hagensia havilandi


 * Mesonotum two-fifths wider than long. Mandibles striolate all over. Abdomen matt, very closely reticulate (45 diameters) . . . . . Hagensia havilandi marleyi