1344 Hymenoptera in America North of Mexico 



Revision: Wheeler, 1923. Amer. Mus. Novitates 90: 1-16. 

 elongata elongata (Buckley). La., Tex. Ecology: The small colonies are found in the soil. The 

 workers apparently forage singly and feed largely, if not exclusively, on pillbugs. There 

 is no typical female as with most ants, reproduction being carried on by a wingless, 

 slightly modified worker form with an enlarged gaster. 

 Ponera Texana Buckley, 1866. Ent. Soc. Phila., Proc. 6: 170. $ . A questionable synonym. 

 Ponera elongata Buckley, 1866. Ent. Soc. Phila., Proc. 6: 172. 5 . 

 Lobopelta septentrionalis Mayr, 1866. Zool.-Bot. Gesell. Wien, Verb. 36: 438. 5 . 



Taxonomy: Wheeler, 1904. Biol. Bui. 6: 257-259 (worker, gynaecoid female, male). —Wheeler 

 and Wheeler, 1952. Amer. Midland Nat. 48: 641 (larva). —Wheeler, 1900. Biol. Bui. 2: 1-31. 



Morphology: Hermann, 1969. Kans. Ent. Soc., Jour. 42: 239-243 (poison apparatus). 

 elongata manni Wheeler. Fla. 



Leptogenys {Lobopelta) elongata manni Wheeler, 1923. Amer. Mus. Novitates 90: 14-15. 5 . 



Tribe ODONTOMACHINI 



Genus ODONTOMACHUS Latreille 



Odontomachus Latreille, 1804. Nouv. Diet. Hist. Nat. 24: 179. 

 Type-sp)ecies: Formica haematoda Linnaeus. Monotypic. 



Four forms of this tropicopolitan genus reach the southern portions of the United States. All 

 of these have previously been considered as subspecies of the Neotropical O. haematodus (L.). 

 Most colonies are small and are found in soil or in rotting logs and stumps. Workers are 

 predaceous and carnivorous. Species of this genus have elongated, linear mandibles and long 

 hairs which arise between the bases of the mandibles and point forward. These hairs act as trig- 

 gers when the mandibles are open. When the hairs are touched, the mandibles snap shut result- 

 ing in a clicking sound. If the mandibles close suddenly on a small object, the object may be cut 

 in two; if they close suddenly on a large object and the mandibles slide over it, the ant is thrown 

 in a series of leaps by the force of its closing mandibles. 



Revision: Smith, 1939. N. Y. Ent. Soc., Jour. 47: 125-130 (U. S.). 



Taxonomy: Wheeler and Wheeler, 1952. Amer. Midland Nat. 48: 646 (larvae). —Wheeler and 

 Wheeler, 1964. Ent. Soc. Amfer., Ann. 57: 455-456 flarvae). —Wheeler and Wheeler, 1971. 

 Ent. Soc. Amer., Ann. 64: 1212 (larvae). —Wheeler and Wheeler, 1976. Amer. Ent. Soc., 

 Trans. 102: 61 (revised characterization of larvae). 



Biology: Wheeler, 1900. Biol. Bui. 2: 1-31. —Wheeler, 1922. Amer. Mus. Nat. Hist., Bui. 45: 

 99-103. — Weyer, 1930. Zool. Anz. 90: 49-55 (leaping habits). 



Morphology: Eisner, 1957. Harvard Univ., Mus. Comp. Zool., Bui. 116: 475-476 

 (proventriculus). 

 clams Roger. La., Tex.; Mexico, Clarion Is., W. Indies. Ecology: Found in semi-desert regions 

 where colonies occur in coarse, gravelly soil, fully exposed to the sun. 

 Odontomachus clams Roger, 1861. Berlin. Ent. Ztschr. 5: 26. 5 . 

 Odontomachus texana Buckley, 1867. Ent. Soc. Phila., Proc. 6: 355. 5 . 

 Odontomachus haematoda clarionensis Wheeler, 1934. Pan-Pacific Ent. 10: 141. 5 . 



Taxonomy: Wheeler, 1908. Amer. Mus. Nat. Hist., Bui. 24: 407 (worker, female, male). 

 —Wheeler and Wheeler, 1952. Amer. Midland Nat. 48: 648-650 (larva). —Taylor and 

 Wilson, 1961. Psyche 68: 142. 



Biology: Wheeler, 1900. Biol. Bui. 2: 1-31. — Haskins and Enzmann, 1938. N. Y. Acad. Sci., 

 Ann. 37: 100-143. 

 coninodis Wheeler. Ariz. (Huachuca Mtns.). Ecology: Small colonies are in coarse gravelly soil 

 under stones at high elevations, usually over 5000 ft. 

 Odontomachus haematoda coninodis Wheeler, 1915. Amer. Mus. Nat. Hist., Bui. 34: 391. 



