Neivamyrmex rugulosus Borgmeier, 1953

Neivamyrmex rugulosus Borgmeier, 1953 p. 49
Eciton (Acamatus) schmitti Pergande, 1895 p. 874
Eciton (Acamatus) sumichrasti Wheeler, 1908 p. 410


TYPE LOCALITY: MEXICO Jalisco Zapotlan 21.88° N 105.41° W

TYPES:Holotype AMNH and 8 paratypes AMNH, CTB, USNM Mus. Genua.
Range: UNITED STATES: Arizona. MEXICO

Map 38

Habitat: Oak Woodland

Elevation:

United States records

ARIZONA: Cochise Co.: Chiricahua Mtns.0.3 mi W SWRS on FSR 42 5500' 31.88° N 109.20° W (Stefan Cover spc6313; LACM, MCZ), Chiricahua Mtns. Cave Creek 14 Aug 1971 (J. F. Watkins; LACM, UKNS, USNM, WPM), SWRS 5400' 5 mi. W Portal 6 Oct. 1970 (WPM), 3.5 mi. NW portal mesquite foothills 5450' 22 xi 1996 raiding Pheidole desertorum (R. A. Johnson # 1221; GCS, LACM, RAJ),


Discussion

       This is a poorly known species, which has been collected in the United States only a handful of times. All of our records are from the Chiricahua Mtns. in southeastern Arizona where it has been collected above the 5000-foot level. Although records are few in the United States it is probable that the species is more widespread than currently indicated, however this appears to be a primarily Mexican species which at the extreme northern limit of its range in the United States.
       The male, which has recently been collected, is virtually indistinguishable from the male of N. harrisi and had it not been collected with associated workers it would have without a hesitation been placed with harrisi. However it may be separated from harrisi by examination of the third segment of the antenna which is the same length as the fourth segment whereas in N. harrisi the segment is distinctly longer than the fourth segment and it may be that when further material of harrisi is reexamined that some of it will turn out to be rugulosus, The only other apparent difference is with the slightly larger ocelli of N. rugulosus.