Feb., 'lO] ENTOMOLOGICAL NEWS. 69 



Prosopis megalotis n. sp. 



$. Length 4.5-5 mm. Supraclypeal mark long, its upper edge 

 abruptly converging and its apex narrowly truncate. Lateral face 

 marks deeply notched about bases of antennae, the notch beginning at 

 the point of convergence of the sides of the supraclypeal mark, and ex- 

 tending inward for one-half the width of the mark, then curving slowly 

 outward and upward nearly to vertex, forming extremely large ear-like 

 upward extensions with the upper end broadly truncate. All of cly- 

 peus, supraclypeal mark, lateral face marks, labrum and mandibles 

 except extreme base, pale yellow. Antennae short, scarcely attaining 

 tegulae, scape and pedicel wholly deep black, flagellum bright ferru- 

 ginous. Tubercles, except for a central black dot, an uninterrupted 

 line on collar, most of tegulae and a broad stripe on wing base, yel- 

 low. Head rather coarsely punctured, thorax with close punctures. 

 Tarsi,, except the terminal joints and claw, anterior tibiae, except for 

 a large spot behind, middle and posterior tibiae, except for broad, dark 

 subapical rings, yellow, rest of legs black. Wings perfectly clear, 

 nervures and stigma fuscous. Abdomen shining black, with the apices 

 of the segments broadly testaceous, first two segments distinctly punc- 

 tured, third and following segments with very inconspicuous, short, 

 sparse, pale hair. 



9 . Length 5 mm. Agreeing in general with the $ , but clypeus, 

 supraclypeal area, labrum and mandibles wholly black; the lateral face 

 marks are long and narrow, extending from base of mandibles well 

 beyond antennal bases and nearly to vertex, the upper end broadly 

 rounded or subtruncate, the lower end acuminate, widest at middle 

 near upper edge of clypeus where there is a slight tooth, pale yellow 

 in color. Tubercles yellow, usually undotted. Tarsi more blackish, 

 only the basal joint ever extensively yellow, the black rings on middle 

 and posterior tibiae involving all but the upper ends of those joints. 

 Apical margins of abdominal segments more conspicuously and exten- 

 sively testaceous or rufotestaceous. 



Types. Glen, Sioux Co., Nebraska, August 17, 1906, on 

 Cleome serrulata (M. H. Swenk). Collection University of 

 Nebraska. 



Paratypes. Type lot, i male ; type locality, August 14, 1906, 

 on Solidago (P. R. Jones), i male, do., August 15, 4 males 

 and 2 females; do., August 17, i male and 6 females; do. 

 (H. S. Smith), 3 males and 6 females; do., August 19 (P. R. 

 Jones), 3 males and 4 females; do., August 20 (L. Bruner), 

 i male and 3 females; do. (H. S. Smith), 9 males and n fe- 



