Key to Hispaniola Genera of Myrmicinae

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Additional information about the ants of the island can be found here: Ants of Hispaniola


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2

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Pyramica membranifera
Pyramica membranifera casent0104518 profile 1.jpg
Eurhopalothrix floridana
Eurhopalothrix floridana casent0003195 profile 1.jpg

3

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4

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Solenopsis geminata
Solenopsis geminata casent0104522 profile 1.jpg
  • Antenna with 11 segments (scape and portion of funiculus may be hidden behind expanded frontal carinea) . . . . . 5

5

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Crematogaster steinheili
MCZ ENT Crematogaster steinheili hal.jpg
  • Postpetiole attached to the anterior face of first gastral segment . . . . . 6

6

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  • In full face view frontal carinae expanded and reaching beyond the sides of the head . . . . . 7
  • In full face view frontal carinae not expanded beyond the sides of the head . . . . . 8

7

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  • With head in full-face view: the top of the eyes at or close to the posterolateral corners, not near the the lateral midline of the head; antennal scrobe margins not visible . . . . . Cephalotes of Hispaniola
Cephalotes auricomus
MCZ ENT Cephalotes auricomus hal.jpg
  • With head in full-face view: the top of the eyes positioned at or close to the lateral midline of the head; margins of antennal scrobes evident on top portion of head . . . . . Cyphomyrmex of Hispaniola
Cyphomyrmex rimosus
Cyphomyrmex rimosus casent0173243 profile 1.jpg

8

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  • No turbercules and/or spines on dorsum of mesosoma; 2 segmented antennal club; small ants > 3mm; common in disturbed areas . . . . . Wasmannia . . . one species present: Wasmannia auropunctata (Wasmannia can be abundant where they occur. If they co-occur with Tetramorium simillimum it is easy to overlook this other species as it is similar in its general appearance)
Wasmannia auropunctata
Wasmannia auropunctata casent0039797 profile 1.jpg
  • Numerous tubercules and/or spines along dorsum of mesosoma; no antennal club . . . . . 9

9

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  • In full face view, position of eyes just above the lateral midline if the head; in dorsal view the promesonotal spines/tubercules forming a circlet or crown; in profile view the spines/tubercules along the top of the mesosoma short (less than half the length of the last pair) except for the more prominent, longer terminal propodeal pair . . . . . Mycocepurus . . . one species present: Mycocepurus smithii
Mycocepurus smithii
Mycocepurus smithii casent0179467 profile 1.jpg
Mackay et al. 2004. Fig 2. Pronotum and mesonotum (top view) of a worker of Mycocepurus smithii , showing the crown of spines on the promesonotum (modified from Mackay, 1998).
  • In full face view, position of eyes just below the lateral midline if the head; in dorsal view the promesonotal spines/tubercules not forming a crown or circlet; in profile view the spines/tubercules along the top of the mesosoma of varying lengths, typically with at least one anterior pair at least half as long as terminal propodeal pair . . . . . Trachymyrmex of Hispaniola
Trachymyrmex jamaicensis
Trachymyrmex jamaicensis casent0102743 profile 1.jpg

10

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  • With all the following: In dorsal view, postpetiole subcircular and notably swollen relative to the petiole AND dorsum of head and mesosoma finely sculptured, dull and lacking erect hairs AND clypeus with long median setae that projects forward over the mandibles . . . . . Cardiocondyla of Hispaniola
Cardiocondyla venustula
Cardiocondyla venustula casent0103747 profile 1.jpg
  • Postpetiole in dorsal view variable in shape and size but not both subcircular and notable swollen relative to the petiole in dorsal view; sculpture on dorsum of head and/or mesosoma, when present, often including rugae or punctures; erect hairs present on dorsum of head, or mesosoma or both head and mesosoma; median clypeal seta present or absent . . . . . 11

11

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  • Combination of: in profile view many suberect to erect hairs present on underside of the head AND head and mesosoma heavily sculptured AND antenna without a club . . . . . Pogonomyrmex of Hispaniola
Pogonomyrmex schmitti casent0103066 profile 1.jpg

12

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13

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  • Last three terminal segments of antenna forming a club; apical segment longer than previous two and second longer and wider than third segment; dorsum of propodeum smooth or with slight reticulation or punctuation but not transversely striate or costulate . . . . . Monomorium of Hispaniola
Monomorium bicolor
Monomorium bicolor casent0073615 profile 1.jpg
  • Last three terminal segments of antenna forming a club; apical segment longer than previous two and second about the same length and width of third; dorsum of propodeum distinctly or faintly transversely striate or costulate . . . . . Trichomyrmex of Hispaniola
Monomorium destructor
Monomorium destructor casent0104076 profile 1.jpg

14

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  • In profile view, anterior portions of propodeum depressed below level of posterior portion of promesonotum . . . . . 15
  • In profile view, anterior portions of propodeum not depressed below level of posterior portion of promesonotum . . . . . 16

15

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Pheidole jelskii major
Pheidole jelskii casent0178031 profile 1.jpg
Pheidole jelskii minor
MCZ-ENT00020688 Pheidole jelskii-hal.jpg
Aphaenogaster relicta
Aphaenogaster relicta casent0900419 p 1 high.jpg

16

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Rogeria curvipubens
Rogeria curvipubens casent0173282 profile 1.jpg

17

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  • Frontal carinae extending upward from frontal lobes reaching well past the lateral midline of the head; mandible with six or seven teeth . . . . . Tetramorium of Hispaniola
Tetramorium lucayanum
Tetramorium lucayanum casent0217212 p 1 high.jpg
Temnothorax sallei
Temnothorax sallei casent0901797 p 1 high.jpg