Pseudomyrmex satanicus (Wheeler 1942)

Ward, Philip S., 1993, Systematic studies on Pseudomyrmex acacia-ants (Hymenoptera: Formicidae: Pseudomyrmecinae), Journal of Hymenoptera Research 2, pp. 117-168: 149

publication ID

http://doi.org/ 10.5281/zenodo.10150

publication LSID

lsid:zoobank.org:pub:80669360-1DB2-4B74-9F4B-99DD3E7EBBFA

DOI

http://doi.org/10.5281/zenodo.3512898

persistent identifier

http://treatment.plazi.org/id/D985C30C-BD14-DE28-5B5D-45EA5FA92657

treatment provided by

Donat

scientific name

Pseudomyrmex satanicus (Wheeler 1942)
status

 

Pseudomyrmex satanicus (Wheeler 1942) 

(Figs. 10, 20, 59, 68)

Pseudomyrma satanica Wheeler  1942:174. Syntype workers, queen, male, Rio Agua Salud , Canal Zone, Panama (W. M. Wheeler) ( AMNH,  LACM,  MCZC) [Examined],  One MCZC syntype worker here designated LECTOTYPE  .

Pseudomyrmex  satanica  [sic] (Wheeler); Janzen 1966:252.

Pseudomyrmex satanicus (Wheeler)  ; Kempf 1972:223.

Worker measurements (n= 15). - HL 1.16-1.36, HW 1.10-1.26, MFC 0.035-0.057, Cl 0.90-0.97, REL 0.45-0.50, REL2 0.48-0.52, OOI 0.92-1.67, VI 0.69-0.78, FCI 0.030-0.049, SI 0.45-0.49, SI2 0.88-1.00, NI 0.63-0.68, PLI 0.47-0.54, PWI 0.46- 0.63, PPWI 1.35-1.54.

Worker diagnosis. - Similar to P. spinicola  (q.v.) except as follows. Larger ( HW > 1.09), head broader (Cl> 0.88) (Fig. 34) with straight or slightly concave posterior margin and subangulate posterolateral comers (Fig. 10). (The posterior margin of the head approaches this condition in some P. spinicola  workers but these have much smaller, more elongate heads, HW <1.10, Cl <0.90.) Median clypeal lobe narrower ( CLW / HW 0.20-0.22; see Fig. 33).

Palp formula 4,3. Head with pronounced pit-like impression below the median ocellus (absent or poorly developedinP. spinicola  ). Metanotal groove better developed, longer. Petiole tending to be more slender, with less distinct posterolateral corners (this characteristic seen in some workers of P. spinicola  , especially individuals from Panama). Body pubescence averaging thicker than in P. spinicola  . Dark brown in color, mandibles and appendages lighter.

Comments. - The foregoing diagnosis will allow discrimination of P. satanicus  workers from those of the closely related P. spinicola', queens can be recognized by size alone ( HL > 1.65, HW > 1.20). P. satanicus  can be distinguished from the remaining members of the P. ferrugineus  group by the emarginate, laterally angulate median clypeal lobe of the worker and the large size of the queen.

Distribution and biology. - P. satanicus  is a forest species restricted to a few localities in central Panama where its host plant, Acacia melanoceras View Cited Treatment   , grows (Fig. 68). Both the ant and plant are intolerant of forest clearance and are considered vulnerable to extinction (Janzen 1974). The ant is polygynous, with 5-20 or more queens per colony, and the workers are particularly aggressive, even for acacia-ants (Wheeler 1942; Janzen 1974). See Janzen (1974:43-53) for additional details on P. satanicus  and its host plant.

Material examined ( AMNH, LACM, MCZC, PSWC, USNM). -

PANAMA Canal Zone: " Canal Zone " (A.H.Jennings)  ; 3mi SW Gatuen Dam (D.H.Janzen)  ; Barro Colorado Island (D.H.Janzen)  ; France Field (G.C.Wheeler)  ; Marajal [Majagual] nr. Colon (W.M.Wheeler)  ; Red Tank (W.M.Wheeler)  ; Rio Agua Salud (W.M.Wheeler)  ; Zorra Island (D.H.Janzen)  ; Panama: Rio Piedras (D.H.Janzen)  ; prov.unknown: “Panama” (c.u.)  .

AMNH

USA, New York, New York, American Museum of Natural History

LACM

USA, California, Los Angeles, Los Angeles County Museum of Natural History

MCZC

USA, Massachusetts, Cambridge, Harvard University, Museum of Comparative Zoology

PSWC

PSWC

USNM

USA, Washington D.C., National Museum of Natural History, [formerly, United States National Museum]

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hymenoptera

Family

Formicidae

Genus

Pseudomyrmex

Loc

Pseudomyrmex satanicus (Wheeler 1942)

Ward, Philip S. 1993
1993
Loc

Pseudomyrma satanica

Wheeler 1942
1942
Loc

Pseudomyrmex

Lund 1831
1831