238 PROCEEDINGS OF THE ACADEMY OF [Feb., 



of the worker. Petiole and postpetiole opaque and more roughly sculp- 

 tured than those of the worker. Wings milky-white, the veins and 

 stigma very pale. Pilosity and color of body, legs and antennse like 

 the worker, except that the thorax is darker and often quite black, 

 especially on the dorsal surface. 



Male. — Length 2-2.5 mm. 



Head, exclusive of the mandibles, about as broad as long. Eyes 

 very prominent ; ocelli reniform. Mandibles overlapping, small, acute, 

 dentate. Antenna 12-jointed; scape as long as joints 1-4 of the 

 funiculus, the funiculus with a 4-jointed club; first funicular joint 

 swollen, somewhat longer than joints 2-3 together; joints 3-7 cylin- 

 drical, about twice as long as broad, joints of club fusiform gradually 

 increasing in length distally. Thorax with strongly marked parapsidal 

 and Mayrian furrows. Epinotum evenly rounded, with two small 

 prominences in the place of the large spines of the worker and queen. 

 Petiole larger and postpetiole more slender than in the worker and 

 both with much lower nodes, the former somewhat pedunculate, the 

 latter subquadrate from above, with rounded angles, as long as broad 

 and hardl}^ half again as broad as the petiole. Gaster of the usual 

 shape. Legs rather long and slender. 



Clypeus shining, with a few clean-cut, longitudinal rugse. Head 

 subopaque, indistinctly rugose and punctate except the cheeks, where 

 the rug£e are pronounced and reticulate. Thorax smooth; pleurse, 

 mesonotum and scutellum shining, their surfaces indistinctly and 

 irregularly punctate at the sutures. Epinotum opaque, very finely 

 rugose. Petiole and postpetiole opaque, finely rugose; the upper sur- 

 faces of the nodes, especially of the postpetiole, smooth and almost 

 shining. Gaster subopaque. 



Hairs on the body few and very slender, whitish; longest on the 

 gaster; those on the legs and antennae minute and appressed. 



Black; mandibles, antennae, legs and genitalia white. Bases of 

 mandibles, scape, antennal club, coxse, femora, tibise and last tarsal 

 joint of each foot, distinctly infuscated. Wings milky-white with 

 very pale veins and stigma. 



Type locality : "America." 



Additional localities: Virginia (Mayr); District of Columbia (Per- 

 gande) ; New York (Schmelter) ; Colebrook, Litchfield county, Conn. 



This species is evidently allied to L. curvispinosus, but is readily 

 distinguished by its dark coloration, strong epinotal spines, shining 

 head, etc. The specimens from which the above description was 

 drawn may be considerably darker than Rogers' types. In most of 



