180 Journal New York Entomological Society. [Voi. xv 



thicker than the funicle, the last joint reduced almost to a spine ; face when viewed 

 from above slightly convex, vertex meeting the occiput in a sharp carina extending 

 from eye to eye ; submarginal vein long but not as long as the marginal, stigmal knob 

 sessile, postmarginal vein hardly longer than the stigmal knob ; metathorax with a 

 distinct median carina ; petiole of abdomen very short the abdomen being almost 

 sessile, abdomen of 9 about as long as the head and thorax, of $ about as long as 

 the thorax. 



Most closely related to Nesomyia but differs in the convex form, ab- 

 sence of ring joint, short postmarginal vein, carinate vertex, convex 

 face (in Nesomyia the face viewed from above is strongly concave), etc. 



Eriglyptus robustus, new species. 



^ . — Length 2.5 mm. Mead and thorax blue, with green reflections in places, 

 face and under parts deeper blue,, almost purple in places, dorsum of thorax except 

 lateral areas of mesothorax mostly Kneous ; antennse blue ; abdomen blue, with 

 greenish in places ; legs blue, tibia apically and tarsi except the dark apical joint, 

 white. 



^. — Length 2 mm.; similar to 9 but above mostly green, face with green, 

 pleurse and below blue ; abdomen basally with a white spot. 



Locality. — Washington, D. C, parasite of Anthonomus nigrinus. 

 Type. — No. 10045, U. S. National Museum. 



Tribe Entedonini. 

 Horisemus lixivorus, new species. 



9 . — Head and thorax dark olive green above, the scutellum often dark pur- 

 plish ; face and under parts of thorax coppery green ; abdomen black, shiny, base of 

 first segment greenish ; mesonotum and scutellum finely reticulated ; coxEe and femora 

 green, tibiae dark ; tips of femora, bases and apices of tibiae and tarsi, except apical 

 joint, whitish ; petiole of abdomen very short ; first segment of abdomen over one 

 third the length of abdomen, apically finely reticulated as are the remaining seg- 

 ments. Length about 1.75 mm. 



$ . — Similar except for sexual characters. Length about 1. 25 mm. 



Type locality. — Dallas, Texas, Oct. 2, 1906, bred from Lixiis 

 tnusculus (W. D. Pierce) ; also from Victoria, Texas, Apr. 4-7 (W. 

 E. Hinds coll.). 



Type. — No. 10046, U. S. National Museum. 



The dark legs readily separate this species from the others, except 

 microgaster, which has the first segment of the abdomen over one half 

 the length of abdomen and punctured apically. 



Tribe Tetrastichini. 



Aprostocetus diplosidis, new species. 



9 . — Black, shiny, eyes reddish brown ; antennae brown ; sculpture of meso- 

 thorax exceedingly minute longitudinal lines, making the surface silky in appearance ; 



