1332 Hymenoptera in America North of Mexico 



Morphology: Borgmeier, 1957. Rev. Brasil. Biol. 17: 393 (maxillary and labial palpi). 

 opacithorax (Emery). Va., N. C, S. C, Ga., Fla., Tenn., Ala., Mo., Ark., Kans., Okla., Tex., N. 

 Mex., Ariz., Calif.; Mexico to Costa Rica. Ecology: Habits are similar to those of 

 nigrescens (Cresson). All castes are known. 

 Eciton (Acamatus) califomicum opacithorax Emery, 1894. Soc. Ent. Ital., Bol. 26: 184. 5. 

 Eciton {Acamatus) opacithorax castaneum Borgmeier, 1939. Rev. de Ent. 10: 416. 9 . 



Biology: Wheeler and Long, 1901. Amer. Nat. 35: 163, 172. —Smith, 1924. Ent. News 35: 84. 

 —Cole, 1953. Tenn. Acad. Sci., Jour. 28: 84. — Schneirla, 1958. Insectes Sociaux 5: 215-255. 

 — Rettenmeyer, 1963. Univ. Kans., Sci. Bui. 44: 437-446. — Watkins, 1964. Kans. Ent. Soc., 

 Jour. 37: 22-28 (trail foUowing). —Smith, 1965. U. S. Dept. Agr., Tech. Bui. 1326, pp. 19-20. 

 ^Watkins and Cole, 1966. Tex. Jour. Sci. 18: 254-2(55 (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 (a blind snake follows pheromone trails of opicithorax). 



Morphology: Borgmeier, 1957. Rev. Brasil. Biol. 17: 393 (maxillary and labial palpi). 

 pauxillus (Wheeler). Tex.; Mexico. Only the worker and queen are known. 

 Eciton (Acamatus) pauxillum, Wheeler, 1903. Psyche 10: 93. 5 . 



Taxonomy: Watkins, 1971. Kans. Ent. Soc., Jour. 44: 99-101 (worker, queen; biological notes). 



Biology: Smith, 1938. Ent. Soc. Wash., Proc. 40: 158. 

 pilosus mandibularis (Smith). N. Mex., Ariz. Only the male is known. N. pilosus pilosus 

 (Smith) is found in S. Amer. 

 Eciton (Neivamyrmex) pilosum mandihulare Smith, 1942. Amer. Midland Nat. 27: 543, 

 548. S. 

 pilosus mexicanus (Smith). Miss., Ark., La., Okla., Tex., Calif., s. to Colombia. AU castes are 

 known. 

 Labidus Mexicanus Smith, 1859. Cat. Hym. Brit. Mus., v.7, p. 7. 6. 

 Eciton clavicomis Norton, 1868. Amer. Ent. Soc., Trans. 2: 46. $ . 

 Eciton (Labidus) subsulcatum Mayr, 1886. Zool.-Bot. (Jesell. Wien, Verh. 36: 440. 6. 

 Eciton (Acamatiis) aztecum Forel, 1901. Mitt. Nat. Mus. Hamburg 18: 49. 5 . 

 Eciton (Labidus) spininode militarium Santschi, 1929. Wien Ent. Ztg. 46: 85. 5 . 



Taxonomy: Borgmeier, 1936. Inst. Biol. Veg. Arq. 3: 60. — Reichensperger, 1939. Zool. Jahrb. 

 Abt. f. System. 73: 297-300. 



Biology: Smith, 1924. Ent. News 35: 85. —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 foUowing and trail preference). 

 rugulosus Borgmeier. S. Ariz.; Mexico. Only the worker is known. 



Neivamyrmex rugulosus Borgmeier, 1953. Studia Ent. 2: 49. § . 

 swainsonii (Shuckard). La., Tex., N. Mex., Ariz., Calif.; s. to Argentina. Only the male is 

 known. 

 Labidus swainsonii Shuckard, 1840. Ann. Nat. Hist. 5: 201. S. 



Eciton (Acamatus) arizonense Wheeler, 1908. Amer. Mus. Nat. Hist., Bui. 24: 414. 3. 

 texanus Watkins. Va., N. C, S. C, Ga., Fla., Tex., Colo., N. Mex., Ariz.; Mexico. All castes are 

 known. 

 Neivamyrmex texanus Watkins, 1972. Kans. Ent. Soc, Jour. 45: 353-358. 5 , 9 , 6 . 



Taxonomy: Wheeler and Long, 1901. Amer. Nat. 35: 161 (male described as schmitti). 

 — Borgmeier, 1955. Studia Ent. 3: 496 (male described as nigrescens). 



Unplaced Taxon of Doryunae 



Myrmica (Mofrwmarium(!)) coeca Buckley, 1867. Ent. Soc. Phila., Proc. 6: 339. 5. Tex. (San 

 Saba Co.). 



