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the antennje, hypostoma and moutli pale yellowish : abdomen 

 somewhat piceous. 



Length three-tenths, % less than two-fifths of an inch. 



Not uncommon in the forest, running rapidly upon the branches 

 and leaves of bushes. 



7. F. SUBSERICEA. — Black, minutely sericeous ; abdomen im- 

 punctured. 



Inhabits Indiana. 



Body impunctured, black, very minutely sericeous : thorax with 

 an impressed line before : wings dusky ; discoidal cellule about 

 half as large as the first cubital, a little narrower before : scale 

 obtuse, or widely rounded at tip, somewhat truncate. 



Length % less than two-fifths, V over two-fifths of an inch. 



My specimen of the female has the legs entirely black : and 

 of two males one has the legs honey-yellow, with the exception 

 only of the base of the coxae ; and the other [290] also with 

 honey-yellow legs has the coxae, trochanters and even the base 

 of the thighs black. It is one of the large species called " wood 

 ants." 



ATTA. 



A. FERVENS Drury, vol. iii. p. 58, pi. 42, f. 3. — I obtained a 

 female of this species in Mexico, and on comparison with an in- 

 dividual of the cejihalotes sent me by Dr. Klug, I find it to be a 

 closely allied species. The color of the wings and their neura- 

 tion are the same ; but the body is more hairy or downy, and its 

 brown color is not so deep, (the color is much too black in my 

 copy of Drury, agreeing better with the cephalotes, than with 

 Drury's description.) The head is not so large, so deeply in- 

 dented above, nor so acute at the posterior angles. The impressed, 

 longitudinal line on the anterior part of the thorax, so distinct 

 in cephalotes is not, or is scarcely visible in /ervens. Judging 

 from these two specimens, lam convinced that the /ervens ought 

 to be admitted into the modern books as a distinct species. 



MYRMICA Latr. Klug. 

 1. M. LINEOLATA. — $ Black, more or less varied with pice- 

 ous : antennae subclavate ; at tip clothed with dense, short, 

 whitish hairs : front with a longitudinal impressed line, termi- 



[Vol. I. 



