Cerapachys

Fig. 1. Side view of a worker of Cerapachys augustae (from Creighton, 1950).

Fig. 2. Side view of a female of Cerapachys augustae (from Creighton, 1950).

Fig. 3. Side view of a male of C. davisi (from Smith, 19??).

Fig. 4. Wing of a male of C. davisi (from Smith, 19??).

Key to New World Cerapachys workers and females [1]

1.Antenna with 9 segments (Trinidad, Puerto Rico, Hawaii, introduced) ………………... biroi Forel (= seini Mann, = ierensis Weber, = silvestrii Wheeler)

-Antenna with 11 or 12 segments ………………………………..……… 2

2(1).Antennae 12-segmented Trinidad, Costa Rica [Guanacaste], Colombia [Antioquia], Cuba) …………. …………………… neotropicus Weber

Fig. 5. Side view of a worker of Cerapachys neotropicus (from Weber, 1939).

-Antennae 11-segmented ….…. 3

3(2).Body smooth and shining, with widely spaced punctures; Colombia (Meta), SE Brasil … splendens Borgmeier

-Body densely covered with coarse foveolae or punctures, mostly contiguous on dorsum of head (North, Central and northern South America) (augustae group) ……………..……… 3

3(2).Dorsum of head completely and coarsely covered with small foveolae, about 15 - 25 between posterior edge of frontal carina and posterior margin, with head in full face view; USA (AZ, FL, AR, TX,) México (Oaxaca, Tamps), Costa Rica (Puntarenas), Panamá (Canal Zone), Colombia (Magdalena) ………………... …………………….. augustae Wheeler

-Dorsum of head covered with coarse foveolae (approximately 12 between posterior edge of frontal carina and vertex, with head in full face view)…………….………………….... 4

4(3).Foveolate punctures on dorsum of mesosoma not contiguous, region between them smooth and shining; Mexico (Chiapas, San Luis Potosí, Veracruz), Guatemala, Belize (British Honduras), Costa Rica (Punnarenas), Colombia (Antioquia), Ecuador (Pichincha) …..……….. toltecus Forel

Fig. 6. Side view of a worker of Cerapachys toltecus (from Serna, 1999).

Fig. 7. Head of a worker of Cerapachys toltecus (from Serna, 199?).

Fig. 8. Mandibles of a worker of C. toltecus (from Serna, 1999).

-Foveolate punctures on dorsum of mesosoma contiguous, without shining region between them; Honduras (Lonbardia) ………………………. hondurianus Mann [2]

Males taken at light in Texas, New Mexico, and Arizona are referred to C. augustae and C. davisi.) They can be separated with the following key:

1.Larger (total length at least 4 mm); all funicular segments except first longer than wide; collected at black lights in southern New Mexico, west Texas and Chihuahua ...... ….………...... davisi Smith

Small (total length less than 4 mm); funicular segments wider than long; widely distributed (see worker key) ..…………….……... augustaeWheeler

Cerapachys augustae Wheeler

Figs. ; Map

Discussion.

Distribution.

Map 1. Cerapachys augustae.

Habitat.

Biology.

Cerapachys biroi Forel

Figs. ; Map

Discussion.

Distribution.

Map 1. Cerapachys biroi.

Habitat.

Biology.

Cerapachys davisi Smith

Figs. ; Map

Discussion.

Distribution.

Map 3. Cerapachys davisi.

Habitat.

Biology.

Cerapachys hondurianus Mann

Figs. ; Map

Discussion.

Distribution.

Map 3. Cerapachys hondurianus.

Habitat.

Biology.

Cerapachys neotropicus Weber

Figs. ; Map

Discussion.

Distribution.

Map 2. Cerapachys neotropicus.

Habitat.

Biology.

Cerapachys toltecus Forel

Figs. ; Map

Discussion.

Distribution.

Map 4. Cerapachys toltecus.

Habitat.

Biology.

Literature Cited

Serna, F. 1999. Hormigas de la zona de influencia del Proyecto Hidroeléctrico Porec II. Unpublished Master’s Thesis, Universidad Nacional de Colombia, xiv + 250 pp.

[1]There are apparently some uncommon, undescribed species. The foveolae on the head of specimens from Mexico (Chiapas, Nuevo León, Puebla), Panama (Canal Zone) and Colombia (Magdalena) are intermediate in size between toltecus and augustae. Other specimens from Colombia (Magdalena) have only a few foveolae on the sides of the mesosoma, and are partially smooth and shiny.

[2] probably a synonym of C. toltecus