o 



36 S. B. Buckley on North American Formicidse. 



long; coxae and trochanters large; upper surface of head, thorax and 

 abdomen thinly sprinkled with hairs. 



Dwells in the ground near the surface, in McCulloch County, in 

 Western Texas. 



39. Myrmica subrubra, n. sp. 



Worker. Length 0.18 inch. — Reddish brown, abdomen paler, 

 smooth and shining; head ovate, rounded above, at sides and behind ; 

 antennae inserted near the base of the clypeus, hairy, long, filiform, 

 and but little enlarged towards their apical joints; eyes small, circu- 

 lar, lateral and midway; mandibles small, curved inwards and down- 

 wards, acute ; prothorax narrower than the head, rounded above, at 

 the sides, widest posteriorly; mesothorax depressed, inclined back, with 

 a well marked division between it and the metathorax ; metathorax has 

 two large divergent spines, somewhat inclined posteriorly ; pedicle 

 long; scales nearly equal, anterior one smallest and somewhat wedge- 

 shaped ; abdomen ovate, subacute; legs long, slender. 



Female. Length 0.18 inch. — Black; legs hyaline; head small; 

 eyes large, prominent, lateral, and placed in front of the middle ; club 

 of the antennae very short; flagellum slightly enlarged about its mid- 

 dle, then somewhat attenuated ; mandibles hyaline ; prothorax wider 

 than the head; mesothorax not dej)ressed, the whole thorax from the 

 middle of the prothorax somewhat compressed, narrowed posteriorly; 

 on the lower part of the metathorax are two short spines; scales nodose, 

 about equal; wings extend beyond abdomen 0.10 inch; otherwise like 

 the worker. 



Winged females obtained in August, under the bark of a decayed 

 tree, near Washington, D. C., and also at Aquia, in Virginia. 



Quick in its movemeuts. 



40. Myrmica californica. n. sp. 



Worker, Length 0.25 inch. — Reddish-brown or yellowish-red ; 

 head subquadrangular, rounded above; occiput slightly emarginate ; 

 eyes small, circular, lateral, placed about midway of the head; an- 

 tenna} short, clavate, inserted at the base of the clypeus; mandibles 

 large, widened in front, curved inwards and downwards, 7-toothed on 

 the inner margin; head not channeled below; upper surface finely 

 longitudinally striated; prothorax narrower than the head, rounded 

 above, at the sides, and widest about the middle, divisions of the thorax 

 not strongly marked; mesothorax subcompressed at the sides, as high 

 as the prothorax, but not as wide ; metathorax rounded above, sloping 

 gradually to the pedicle; whole thorax transversely striated ; pedicle 



