Superfamily FORMICOIDEA 1331 



Biology: Watkins and Cole, 1966. Tex. Jour. Sci. 18: 254-265 (=pauxillus of authors, not * 

 Wheeler; attraction of workers to secretion of queens). —Watkins, Cole, and Baldridge, 

 1967. Kans. Ent. Soc, Jour. 40: 146-151 (=pauxillus of authors, not Wheeler; trail 

 following and trail preference). 

 macropterus Borgmeier. W. Tex., N. Mex., Ariz.; Mexico, only the male is known. 

 Neivamyrmex macropterus Borgmeier, 1953. Studia Ent. 2: 40. 6 . 



Taxonomy: Watkins, 1975. Southwest. Nat. 20: 85-89 (relationship to fuscipennis (Wheeler)). 

 melanocephalus (Emery). S. Ariz, to Honduras. Only the worker is known. 



Eciton (AcamatiLs) melanocephalum Emery, 1895. Zool. Jahrb. Abt. f. System. 8: 260. 5 . 

 Eciton {Acamatv^) melanocephalum xipe Wheeler, 1914. N. Y. Ent. Soc., Jour. 22: 41. $. 

 melsheimeri (Haldeman). La., Okla., Tex.; s. to Costa Rica. Only the male is known. Records 

 citing this species from Utah are probably incorrect. 

 Labidus melshaemeriH) Haldeman, 1852. In Stanbury, Exped. Great Salt Lake, p. 368. 6. 



Biology: Wheeler, 1908. Amer. Mus. Nat. Hist., Bui. 24: 418. 

 microps Borgmeier. Ariz. (Phoenix). Only the male is known. 



Neivamyrmex microps Borgmeier, 1955. Studia Ent. 3: 635. S. 

 minor (Cresson). Kans., Okla., Tex., N. Mex., Ariz., Nev., Calif.; Mexico. Only the male is 

 known. One of the smallest of our legionary ants. 

 Labidus m,inor Cresson, 1872. Amer. Ent. Soc., Trans. 4: 195. S. 



Taxonomy: Wheeler, 1908. Amer. Mus. Nat. Hist., Bui. 24: 418 (male). 



Biology: Wheeler and Long, 1901. Amer. Nat. 35: 165. —Cole, 1966. Brigham Young Univ., 

 Sci. Bui. 7: 26. 

 mojave (Smith). Calif. (Mojave Desert). Only the male is known. 



Eciton (.Neivamyrmex) mojave Smith, 1943. Lloydia 6: 196. 6 . 

 moseri Watkins. La., Tex. Ecology: Collected from a nest of Atta texana (Buckley) in La. Only 

 the worker and queen are known. 

 Neivamyrmex moseri Watkins, 1968. Kans. Ent. Soc., Jour. 41: 528-531. 5. 



Taxonomy: Watkins, 1971. Kans. Ent. Soc., Jour. 44: 95-99 (worker, queen; also biological 



notes). 

 nigrescens (Cresson). W. Va., Ky., Tenn., Ga., Ala., Miss., 111., Iowa, Mo., Ark., La., Nebr., Kans., 

 Okla., Tex., Colo., N. Mex., Ariz., Calif.; Mexico. Ecology: Temporary nesting sites are in 

 decayed logs or stimips or in the ground beneath stones and other objects. Many 

 foraging activities take place in daylight, and they are highly predaceous on other 

 insects. Large colonies contain 150,000 to 250,000 workers. Each colony has one 

 functional queen, and new colonies are formed by splitting. All castes are known. 



Labidus nigrescens Cresson, 1872. Amer. Ent. Soc., Trans. 4: 194. 6 . 



Eciton (Acamatus) Schmitti Emery, 1894. Soc. Ent. Ital, Bol. 26: 183. 5. 



Taxonomy: Wheeler, 1943. Ent. Soc. Amer., Ann. 36: 331 (larva). —Watkins, 1972. Kans. Ent. 

 Soc., Jour. 45: 358-363 (worker, distribution). 



Biology: Wheeler, 1900. Amer. Nat. 34: 565-574 (sumichrasti, not Norton). —Smith, 1927. 

 Ent. Soc. Amer., Ann. 20: 401-404. —Cole, 1953. Tenn. Acad. Sci., Jour. 28: 84. — Schneirla, 

 1958. Insectes Sociaux 5: 215-255. — Rettenmeyer, 1963. Univ. Kans., Sci. Bui. 44: 44fr452. 

 —Gregg, 1963. Ants of Colo., pp. 286-288. —Watkins, 1964. Kans. Ent. Soc., Jour. 37: 22-28 

 (trail following). —Smith, 1965. U. S. Dept. Agr., Tech. Bui. 1326, pp. 18-19. —Watkins and 

 Cole, 1966. Tex. Jour. Sci. 18: 254-265 (attraction of workers to secretion of queens). 

 —Watkins, Cole, and Baldridge, 1967. Kans. Ent. Soc., Jour. 40: 146-151 (trail following and 

 trail preference). —Watkins, (Jehlbach, and Baldridge, 1967. Southwest. Nat. 12: 455-462 

 (blind snake follows pheromone trails of nigrescens). —Watkins, Gehlbach, and KroU, 

 1969. Ecology 50: 1098-1102 (attractant, repellant secretions). — Plsek, Kroll, and Watkins, 

 1969. Kans. Ent. Soc., Jour. 42: 452-456 (carabids in raiding columns). — Topoff, 1969. N. Y. 

 Ent. Soc., Jour. 77: 273-274 (communication). —Topoff, 1969. Psyche 76: 375-381 (predatory 

 association between carabids and nigrescens). —Topoff, 1970. N. Y. Ent. Soc., Jour. 78: 

 239-240 (cyclic behavior). —Watkins, Gehlbach, and Plsek, 1972. Tex. Jour. Sci. 23: 34. 

 (behavior of blind snakes in response to raiding columns). 



