98 
Psyche 
[June- Sept. 
pair somewhat longer than the others, these acute teeth 
followed by the apical series of several much smaller teeth. 
Eyes small, comprising 10 or 12 facets. Antennal scapes 
H the length of the funiculi, rounded but not angulate on 
the basal third; fourth joint of the funiculus very slightly 
shorter than the first, terminal joint as long as the remain- 
der of the funiculus. Thorax as in S. clypeata, humeri and 
lateral margins smoothly rounded, somewhat flattened on the 
dorsum of the mesonotum, mesoepinotal suture distinct, 
slightly constricted ; epinotal spines acute, thin ; infraspinal 
lamellae narrow, not expanded ventrally. Node of petiole 
in profile rather prominent, broadly convex, the anterior 
slope rising suddenly but gently from the peduncle, the 
posterior slope declining very distinctly to the junction with 
the postpetiole. 
Head, thorax and petiole reticulate-punctate, subopaque; 
mandibles, meso- and metapleura, dorsum of the postpetiole 
and gaster smooth and shining; first gastric segment with 
numerous, coarse, longitudinal striae on the basal 
Hairs on head and thoracic dorsum numerous, moderately 
long, thin, curved and somewhat clavate at their tips ; those 
on the clypeus shorter, curved laterally and anteriorly, a 
few on the borders of the clypeus slightly longer, curved 
posteriorly; hairs on antennal scapes erect, clavate on the 
anterior edge, more numerous and thinner dorsally, de- 
flected toward the tips of the scapes; hairs on the thorax 
more irregular in length and distribution, and less clavate ; 
hairs on the petiole, postpetiole and gaster very long, thin, 
very few on the gaster. 
Color, light to dark ferruginous ; tarsi and antennal 
funiculi slightly paler; gaster darker. 
Type locality: Pike County, near Sinking Spring, Ohio. 
Described from 32 workers obtained by sifting dirt and 
humus in the small cedar grove described below under 
S. miss our iensis. The spot was situated at the base of a 
hill where the soil above the underlying limestone was only 
5 to 8 cm. deep. The ground was shaded by cedar and small 
oak trees and was covered with a rather thick, loose humus 
abounding with springtails. 
In shape of the head, S. manni bears a superficial resem- 
blance to S. margaritze Forel, but differs from that form in 
