528 PROCEEDINGS OF THE ACADEMY OF [1895. 



Los Angeles, California (Coquillett). In collection U. S. Nat'l 

 Museum. 



14. Gorytes dentatus Fox. 



Gorytes dentatus Fox, Can. Ent., XXV, p. 116, $ . 



Grand Canon, Arizona (Townsend). This species has no yellow 

 on the middle segment, and the yellow markings of abdomen are 

 narrow, wanting entirely on three last segments. 



15. Gorytes pygidialis n. sp. 



9 . — Eyes diverging slightly toward clypeus; the latter scarcely 

 convex; front strongly punctured, with a strong central furrow; 

 scape about as long as the following two joints united, flagellum 

 somewhat thickened apically, the first joint about one- third longer 

 than the second; dorsulum, mesopleurse and middle segment with 

 large separated punctures, closest on posterior face of middle segment 

 whose enclosure is scarcely defined, with about 16 coarse ridges; 

 mesopleune indistinctly carinated, epimerum and episternum meso- 

 thoracis indistinctly separated; tibiae and tarsi strongly spinose, the 

 anterior tarsi with a distinct comb; wings clear, except the fuscous 

 cloud which includes the marginal, upper portion of second and third 

 submarginals, thence extending to the basal nervure bordering the 

 first submarginal and first discoidal cells; abdomen strongly punc- 

 tured, pygidial area long and narrow, ridged laterally and with 

 large punctures. Black; clypeus in part or entirely, mandibles 

 except apex, scape more or less, inner and posterior orbits, basal 

 joints of flagellum beneath and sometimes above, line on pronotum, 

 tubercles, spot behind them, scutellum, postscutellum sometimes, 

 femora and tibia? in part, fascia at apex of segments 4-5, last segment 

 entirely or in part and apical margin of ventrals of 2 and 3, or 4, 

 more or less, yellow; the width of the fascue varies somewhat; legs 

 reddish testaceous in greater part, basally obscure. Leugth 9-10 mm. 

 Var. — Autennre reddish-yellow; dorsal segments of abdomen 

 except the base of 1 and 2, entirely yellow; a small yellow spot on 

 each side of middle segment. 



$ . — Eyes converging toward the clypeus but not strongly; 

 clypeus barbate laterally, transverse; joints 2-7 of flagellum tumid 

 beneath, the eighth and ninth submarginate: between the antenna? 

 a short, distinct carina; mesosternum distinctly carinated, both 

 anteriorly and at the sides. Length 8 mm. 



