V'— ( 



272 SPHEGID^. 



rather long ; median segment rounded, sometimes gibbous poste- 

 riorly, a suuiU triangular space at base 

 enclosed by furrows always present ; 

 (^^^sO*;^ Ti^lS^ I'^gs of moderate length, stout, the tro- 

 chanters two-jointed ; anterior tarsi 

 ciliated ; the intermediate tibiae with two 

 apical spines. Wings somewhat broad in 

 proportion : fore wing with one radial 

 j,j „g and three cubital cells, the radial cell 



Goryiesl%es',2- h elongate; the 1st cubital cell on the 

 cubital ner\'ure about the same length 

 as the 2nd and 3rd united ; the 2nd strongly narrowed towards 

 the radial, receiving both recurrent nervures ; the 3rd quad- 

 rangular and oblique. Abdomen ovato-conic, curved at apex ; the 

 basal segment often narrowed or subpetiohxte campanuliform, or 

 even produced into a lengthened somewhat slender petiole; the 

 2iid ventral segment in some species suddenly produced at right 

 angles with the plane of the 1st segment. 



Key to the Species. 



A. Eyes convergent below. 



a. Basal abdominal seo;ment black. 



a'. Fore wing fasciated. Length, 5 5-6 



mm G. ornatus, p. 272. 



b'. Fore wing not fasciated. Length, § 



9-13 mm G. alipes, p. 273. 



b. Basal abdominal segment red G. amatorius $ , p. 273. 



B. Eyes not convergent below ; inner orbits 



parallel. 



a. Basal segment formed into a long petiole. . G. (jremii, p. 274. 



b. Basal segment not formed into a petiole, 



but attenuated at base. 

 a' . Head and thorax black. 



a-. Basal abdominal segment red G. amatorius J, p. 273. 



b^. Basal abdominal segment black. 



a^. Clypeus, $ , entirely yellow .... G. iinpiffer, p. 274. 

 P. Clypeus black, with a short yellow 



streak on each side at base .... G. p)olitus, p. 275. 

 6'. Head and thorax entirely red varie- 

 gated with yellow, or red variegated 

 with yellow and a little black G. jnctiis, p. 275. 



497. Gorytes ornatus. 



Harpactus ornatus, Smith, Cat. iv, p. 371, $; Handl. Sitzungsh. 

 Akad. Wiss. Wien, xcvii, 1888, p. 443 ; Cam. Mem. Manch. L. 

 Ph. Sue. (4) iii, 1890, p. 239. 



5 . Head and thorax and 2nd abdominal segment very sparsely 

 punctured, rest of abdomen smooth and shining ; head broad, eyes 

 distinctly divergent at vertex ; a deep furrow between the meso- 

 notum and scutellum, the enclosed space at the base of the median 

 segment rugose. Black ; the sca])e in front, the clypeus, a line 

 along the inner orbits of tlie eyes, the labrum, palpi, and mandibles 

 yellow ; a ferruginous stain along the eyes at top and behind the 



