10. 
Bl 
12. 
13. 
14. 
WHEELER: ANTS OF THE GENUS FORMICA. 389 
Infuscation of head extending down onto the cheeks, leaving only 
the posterior cornersred......... sanguinea fusciceps Emery. 
Infuscation of head less extensive, confined to the front and 
yc ths drat ianllibed Pir cle ‘ay hl A ya Ag RS ON iF a 4 
Epinotum obtusely but distinctly angular. .sanguwinea Latreille. 
Epinotum much rounded..... sanguinea var. mollesonae Ruzsky. 
Eyes of the usual size and shape. . sanguinea var. clarior Ruzsky. 
Eyes smaller and more elongate. . sanguinea var. flavorubra Forel. 
Gaster red or ferruginous like the head and thorax. 
bradleyi, sp. nov. 
Gaster brown or black, always darker than the head and thorax .7 
Gaster decidedly shining, with very sparse, short pubescence. .8 
Gaster opaque or subopaque, with longer, dense pubescence. . .9 
Erect hairs on head, thorax, and gaster long and dense. Clypeal 
notch indistinct in small workers. Length of worker 3.5- 
S mim, Orfemales (25-9 mm...) perpilosa Wheeler. 
Erect hairs on head, thorax, and gaster shorter and sparser. 
Clypeal notch distinct in small workers. Length of worker 
a0-4.5 mnm.; of female 6-7 mm.) . 5... mannt, sp. NOV. 
Head, thorax, and petiole brownish testaceous; cheeks straight 
OE Seely CONCAVE | etme NDT ou a ahh walls Dueeacetel 10 
Head, thorax, and petiole red or ferruginous; cheeks more or less 
Sa blip ata ih Ge MA Rio. 7 ON: nM Cea Dai | Bee fl 
Head long and narrow; antennae slender, scapes not thickened 
towards their tips; body subopaque........ pergandet Emery. 
Head shorter; antennae more robust; scapes slightly thickened 
towards their tips; erect hairs less numerous. .emery?, sp. nov. 
Hairs on the dorsal parts of the body abundant, conspicuous, 
glistening white, obtuse or clavate.......... 00.0.0 0000... 12 
Hairs less abundant’ and more'slender : 3)". 20008, 13 
Head and thorax deep red, petiole infuscated; body slender, 
mesoépinotal constriction shallow, epinotum long and low. 
munda Wheeler. 
Head, thorax, and petiole yellowish red, body stout, mesoépi- 
notal constriction deep, epinotum short and high. 
sanguinea obtusopilosa Emery. 
Front and vertex more or less infuscated. . sanguinea aserva Forel. 
Froutiand vertex 1iét infiscated)... 22... ek. 14 
Hairs nearly always absent on the thoracic dorsum and petiolar 
border, short and few on the head and gaster. 
sanguinea subnuda Emery. 
