1905.] Wheeler, The Ants of New Jersey. 39^ 



Brown's Hill Junction (Daecke) ; Halifax (Wheeler) ; Lakehurst 

 (Wheeler). 



This tiny species is not uncommon under stones in gravelly and 

 sunny places. At Lake- 

 hurst it prefers to nest 

 under the great patches 

 of moss and lichen that 

 spread over the sand in 

 the dry woods. In this 

 species, too, the males 

 and winged females 



pass tne winter m tne Fig. 2. — a outer, B median,'and C inner genital valve of male 



' , 1 , 1,1 Prenoieiis fiarvula Mayr. 



parental nest and take 



their nuptial flight in the early spring. 



57. P. arenivaga sp. nov. 



Worker. — Length, 2-2.5 mm. 



Mandibles with oblique blades, 6-7 toothed, third and fifth tooth from the 

 apex smaller than the others. Clypeus convex, carinate, with the anterior 

 border faintly and sinuately excised in the middle. Head,- including the man- 

 dibles, distinctly longer than broad, not narrower in front than behind, cheeks 

 rather convex; occipital border very faintly excised. Antennre slender; scape 

 surpassing the posterior corner of the head by at least two fifths of its length. 

 Funicular joints twice as long as broad, except the second to fourth, which are 

 a little longer than broad. Thorax robust, mesoepinotal depression pronounced, 

 its floor somewhat longer than the transverse distance between the two meta- 

 thoracic stigmata. Petiole small and narrow, cuneate in profile, inclined for- 

 ward, its ventral surface slightly convex; its upper border blunt in profile, 

 rounded when seen from behind. Gaster and legs of the usual structure. 



Surface of body smooth and shining, antennae and legs somewhat more 

 opaque. 



Body covered with very minute white pubescence which is dense on the 

 antennse and legs but sparse on the body. Antennal scapes, femora, tibiae, 

 and body with tapering erect or suberect hairs which have dark brown or 

 black bases and white tips. These hairs are very conspicuous on the upper 

 surface of the head, thorax, and gaster. 



Pale yellow throughout, mandibular teeth and eyes black. 



Male. — Length, 1.8-2 mm. 



Mandibles well-developed but edentulous. Clypeus and head, except for 

 the ocelli and more prominent eyes, in shape somewhat like that of the worker. 

 Antennae slender; scape extending nearly half its length beyond the posterior 

 corner of the head. Mesonotum broad and convex anteriorly, but depressed 

 just in front of the convex scutellum. Epinotum in profile rather sloping, with 

 a but faintly indicated angle between its longer basal and shorter declivous 

 surfaces. Petiole like that of the worker. Genital appendages all long and slender, 



