1895.] NATURAL SCIENCES OF PHILADELPHIA. 535 



tirst segment not striated basal ly, pygidial area triangular, indis- 

 tinctly margined at the side?, with large, sparse punctures. Black ; 

 clypeus except fore margin, labrum, mandibles except apex, inner 

 orbits, antenna: beneath, line on pronotum, tubercles, spot behind 

 them, scutellum, line on metanotum (postscutellum), small spot on 

 each side of middle segment, femora at apex and anterior pair 

 beneath, tibiae except a spot within, tarsi except apical joints, a 

 broad fascia on dorsal abdominal segments 1-5, and a spot on the 

 apical margin of second ventral laterally, which at the extreme sides 

 is enlarged and runs toward the base of the segment, all yellow. 

 Length 8 mm. 



$ . — Similar to the 9 as the coloration, but the flagellum entirely 

 black ; eyes large strongly converging toward the clypeus, the space 

 between them at the base of the latter about equal to half that at the 

 vertex ; clypeus but little shorter than broad ; flagellum stout, a 

 little thickened apically, the joints (first two excepted) about twice 

 as long as broad, last joint a little longer than the preceding one; 

 tibiae and tarsi scarcely spinose, hind tarsi thickened ; wings but 

 slightly yellowish basally ; greater part of ventral segments yellowish. 

 Length 7-8 mm. 



Southern California. Distinguished from eanaliculatus by the 

 yellowish wings, particularly in the female, irregular sculpture of 

 enclosure of middle segment, and much broader eyes of male, which 

 give the head, seen from the front, a very transverse shape. There 

 are four $ specimens before me from Washington State which 

 I refer doubtfully to this species. The yellow markings are more 

 restricted, there being no yellow on the tubercles and middle seg- 

 ment. The markings, also, are a paler yellow. 



41. Gorytes decorus n. sp. 



5 . — Eyes converging toward the clypeus, but a little less strongly 

 so than in the two preceding species; front finely and closely punct- 

 ured; clypeus transverse, somewhat convex, with large punctures; 

 antennae tolerably long, not thickened apically, scape elongate , about 

 as long as the first joint of the flagellum, the latter joint scarcely 

 one-third longer than the second; thorax shining, indistinctly punct- 

 ured; mesosternum distinctly carinated, the epimerum and epi- 

 sternum mesothoracis separated; suture between dorsulum and 

 scutellum foveolate; middle segment irregularly rugose posteriorly, 



