WHEELER. 



[VOL. II. 



artificial nests of the Lubbock and of the Janet pattern. In col- 

 lecting material for these nests, I have been considerably aided 

 by two of my students, Mr. A. L. Melander and Mr. C. T. 

 Brues. Mr. Brues also aided me in drawing some of the figures 



that accompany this 

 paper. 



The three species 

 of Ponerinae which 

 I have studied are : 

 Odontomachus haema- 

 todes L. ; Pachycon- 

 dyla Jiarpax Fabr. (= 

 P oner a amp lino da 

 Buckley) ; and Lcpto- 

 genys elongata Buck- 

 ley. 1 To European 

 myrmecologists both 

 O. haematodes and P. 

 harpax-dcco. well-known 

 species. They have 

 a wide geographical 

 distribution, occur- 

 ring from Texas 

 through Mexico, Cen- 

 tral America and Bra- 

 zil to Bolivia and Para- 

 guay. O. haematodes 

 is also recorded from Georgia, Florida, and the Antilles. 2 In the 

 vicinity of Austin, P. harp ax and L. elongata are found under 



1 Specimens of the last species were kindly identified for me by Mr. Pergande 

 as Lobopelta elongata Buck. ? The query seems to be due to Buckley's wretched 

 description of his Ponera elongata. Since Lobopelta is treated as a subgenus of 

 Leptogenys by Forel, and since the species is very common in Texas, and there- 

 fore, in all probability, the one described by Buckley, I have changed the generic 

 name and omitted the query. Should doubts arise, my figures (Fig. 4) will, I 

 trust, enable any future observer to recognize the species. 



2 See Emery, " Beitrage zur Kenntniss der nordamerikanischen Ameisenfauna," 

 Zool. Jahrb., Abth. f. Systematik., Bd. viii, pp. 268, 269 ; Patton, Amer. Nat., July, 

 1894, pp. 618, 619; Forel, Biologia Centrali-Americana, Hymenoptera, vol. iii, 

 April, 1899, p. 21. 



FIG. i. Odontomachus haematodes Linn. Worker. 



