HENRY J. FRANKLIN. 321 



median cells, in the anterior portion of the radial cell and in the region 

 beyond the veins. 



Z,^^^.— Black and with corbicular fringes black, rarely with a few 

 light hairs at the bases of some of the femora. 



Worker. — Much like the queen, but with wings usually somewhat 

 lighter, in many cases almost subhyaline ; mesopleura usually covered 

 with yellow pile to the bases of the legs ; metapleura and sides of me- 

 dian segment usually yellow. 



Male. Head. — Triangular in outline as viewed from in front. Face, 

 occiput and cheeks mostly clothed with dense yellow pile, the yellow 

 on the cheeks connected with that on the occiput. Malar space dis- 

 tinctly longer than its width at apex. Clypeus covered up with dense, 

 pure yellow pile. Flagellum of antenna about two and three-fourths 

 times as long as the scape ; third antennal segment and fifth subequal 

 in length, the fourth shorter than either. 



Thorax. — Coloration of pile much like that of worker, but the black 

 interalar band rather narrower and less sharply defined ; pleura always 

 well covered with yellow pile to the bases of the legs ; metapleura and 

 sides of median segment always yellow. 



Abdomen. — Dorsum : segment one yellow ; segments two and three 

 ferruginous-red ; segments four and five yellow, but sometimes with 

 black hairs admixed in the middle ; segments six and seven black. 

 Venter with the apical margins of the segments fringed for the most 

 part with yellow pile. 



Genitalia. — Outer spatha variable, but usually much like that of 

 ternarius ffig. 137) ; the hind border sometimes deeply incurved so as 

 to make the apex bilobate. Inner spatha variable, but in general much 

 like that of ternarius (fig. 142); fenestrse sometimes entirely absent. 

 Claspers and sagittae much like those of ternarius (fig. 65), but the 

 volsellae much narrower throughout their entire length. Shafts of 

 sagittse rather strongly bent outward in the middle as in ternarius. 



Wings. — Subhyaline ; about like those of the worker. 



Legs. — Coxag, trochanters and femora all bearing a considerable 

 amount of yellow pile ; fore tibise dark ; middle tibiee mostly dark, 

 but often with some ferruginous hair on their hind sides ; fringes of 

 hind tibiae usually more or less yellowish or ferruginous. Outer faces 

 of hind tibise somewhat convex and mostly naked. Posterior meta- 

 tarsi with short, dark or ferruginous hind fringes. 



Dimensions . — Length : queen, 14 mm. to 19 mm. ; worker, 9 mm. 

 to 13 mm. ; male, 11 mm. to 12 mm. Spread of fore wings : queen, 

 36 mm. to 37 mm ; worker, 20 mm. to 28 mm. ; male, 25 mm. to 27 

 mm. Width of abdomen at second segment: queen, 8| mm. to 10 

 mm. ; worker, 4| mm. to 6 mm. ; male, S\ mm. to %\ mm. 



Redescribed from numerous specimens of each caste. 



TRANS. AM. ENT. SCO. , XXXVIII. (41) 



