368 Mr. W. C. Crawloy on 



Odontomachis hcematodo, L., vav. paJllpefi, var. nov. 



^ . Differs from the ty]>ical form in bcinpr sliglitly larger, 

 move elongate, the scale sliglitly broader from back to front, 

 not tapering so gradually into the spine, and particularly in 

 colonr, which is entirely ferruginous with the gaster darkest 

 and the mandibles and antennre lighter, and the legs entirely 

 yellow. The nearest described variety appears to be palleus^ 

 AVheeler (Bahamas), which is smaller and with a narrower 

 and smoother scale. In var. paUipes the scale is faintly 

 striate transversely in front and behind. Pubescence as in 

 typical form. 

 ■ British Guiana, 20. 4. 15. 



II. Subfam. DojiYLiNM (Leach). 

 Tribe EciTlNi, Forel. 



Eclion (s. str.) hamatum, F., 1/, ^ . 



" This species and E. hurchelli, Weslw., are tlie two 

 common species of' foraging ants' in British Guiana. Both 

 occur fairly commonly." 



E. (s. str.) hnrchelU, Westw., ^ . 



E. (Lahidiis) caecum (s. str.), Ltr., V, ^ . 



"A common species, but owing to its habit of burrowins: 

 Ijeneatli the surface of the soil it is not frequently observed." 

 Berlice, 3.3.15. 



E. [Acamntus) pilosiim, Sm., ^ . 



" This is not a common species of Eciton ; it seems to be 

 more )iartial to the forest areas.'' 

 Rockstone, 27. 12. 14, &c. 



III. Subfam. JUtmmicinjEj Lep. 

 Tribe P S E U D M Y R M I N i, For. 

 Pseudowyrma hiconvexa, For., '^ . 



"From bark of Sapium jenmanni, Hemsl.," Botanic 

 Gardens, Georgetown, 1. 3. 14. 



" A fairly common species. Formicarium unobserved." 



