HYMENOl'TERA. 77 



immediately on finding themselves disturbed, each seized a 

 Termes-worker, of which there was a small colony in the same 

 place, and walked off. I noticed that they took up the Termes 

 very carefully, just in the same way as ants take up their own 

 pupae and larvse when disturbed." 



2. Odontomachus cheliferus. 



Formica chelifera, Latr. Hist. Nat. Fourm. 188 § . pi. 8. f. 51. 

 Ponera chelifera, Latr. Gen. Crust, et Ins. iv. 12S. 

 St. Fury, iff Serv. Encycl. Meth. x. 184. 1 . 



Hab. South America. 



We are acquainted with two species of this genus, O. affinis 

 and 0. maxillaris, both of which agree in every respect with La- 

 treille's chelifera, with the exception of the sculpture of the ab- 

 domen. Latreille describes the abdomen as having the skin (or 

 surface) very finely striated ; we are acquainted with twelve 

 species of the genus, none of which have the slightest trace of 

 striation on the abdomen. Is it not possible that there is an 

 error in the description of chelifera, and that either ojjinis or 

 maxillaris are identical with it ? 



3. Odontomachus affinls. B.M. 

 Odontomachus atfinis, Gner. Icon. Regn. Anim. iii. 42() ^ . 



Hab. Brazil; Rio (Petropolis). (Coll. Rev. Hamlet Clark.) 



4. Odontomachus MAXILLARI.S. PI. V. figs. 12-14. B.M. 



Female. Length 7 lines. — Pale reddish-brown, irregularly 

 stained with darker shades on the thorax ; the head very smooth 

 and shining, the mandibles two-thirds of the length of the head, 

 abruptly curved at their apex and armed with three teeth, the 

 inner one shortest ; the inner edge of the mandibles serrated ; 

 on each side of the face a deep smooth longitudinal excavation, 

 commencing at the base of the mandibles and terminating oppo- 

 site the anterior ocellus; the space between the excavations 

 longitudinally striated, the striation terminating at the posterior 

 ocelli, from which a deep channel runs upwards to the extre- 

 mitv of the vertex ; tlie antennte as long as the head and thorax, 

 slender and filiform. Thorax elongate-ovate ; the pro- and me- 

 tathorax transversely striated, the mesothorax longitudinally so ; 

 the coxa; and base of the femora pale. The scale smooth and 

 spined at the ai)ex ; the abdomen smooth and shining, with the 

 base and the apical margins of the segments dark brown, the 

 whole sprinkled with a few long pale hairs. 



Worker. Length 7 lines. — In colour resembling the female ; 



