1895.] NATURAL SCIENCES OF PHIIjADELPHIA. ''-' 



varies from back with the middle segment red to entirely rufous. 

 The yellow ornamentation is usually the same in both forms, how- 

 ever. 



12. Gorytes ruficornis Prov. 



Gorytes ruficornis Provancher, Add. Hym. Quebec, p. 273, 9 $ ■ 

 California (Provancher). Unknown to me. Seems to be near 

 tricolor. 



13. Gorytes diversus n. sp. 



9 .—Eyes parallel within; front with shallow punctures; space 

 between the fore ocellus and base of clypeus distinctly longer than 

 wide; clypeus strongly convex in middle; antenna? rather longer than 

 usual for species of this section, the flagellum but little thickened 

 apically, its first joint more than one-third longer than the second, 

 scape long and narrow, longer than the following two joints united; 

 dorsulum, mesopleura? and middle segment posteriorly with large, 

 separated punctures; suture between dorsulum and scutellum foveo- 

 late; mesosternum carinated anteriorly, not laterally, the epimerum 

 and episternum mesothoracis indistinctly separated; enclosure of 

 middle segment well marked, with about 18 stria?; tibia? and tarsi 

 spinose, anterior tarsal comb well developed ; wings with a fuscous 

 cloud including the- marginal, second and third submarginals and 

 part of the third discoidal cells, a fuscous stain along the basal 

 nervure, stigma yellowish, nervures black; abdomen strongly 

 punctured, particularly ventrally, pygidial area with strong punc- 

 tures, scarcely ridged laterally. Rufous; anterior and posterior 

 orbits, the former narrowly, pronotum, greater part of mesopleura?, 

 scutellum, postscutellum, middle segment almost entirely, spot on 

 medial and hind coxa?; dorsal segments of abdomen except extreme 

 base of second and the last usually, and greater part of ventrals 2-4, 

 or 5, all yellow; apical anteunal joints fuscous. Length 8*-9 mm. 



$ .—Colored like the 9 , except in the folloAving points: clypeus, 

 mandibles, inner orbits broadly, scape beneath, dorsulum at sides, and 

 the legs, more or less, yellow; rufous on middle segment and abdomen 

 more extended. Fuscous cloud reaching apex of wing; clypeus not 

 barbate laterally; antenna? shorter and stouter, joints of flagellum 

 rounded beneath, 8-10 subemarginate ; eyes very slightly converg- 

 ing beneath; enclosure of middle segment smaller than in 9 , with 

 about 14, rather feeble, stria?; mesosternum dentate laterally. 

 Length 8 mm. 



