1912] North American Scoluine 313 
OM Vecntemortierabaomen allpolackwapruetaet Ginstneoiracs At sree tae ol swan 10 
Venter of the abdomen ferruginous or partly so.:....,................... 11 
10. Head all black, body covered with black hair. Free edge of the clypeus 
ABRe MM AT UCUIVC son. s oy AUN re ee Tae eectelel sslare eis S. bicincta Fabr. (316) 
Head with yellow marks behind the eyes, body covered with grey hair. 
Free edge of the clypeus very near a straight line with the lateral 
edges meeting this edge close to the perpendicular. S. vintschgaui D. T. (336) 
11. Thorax all black, dorsum of third abdominal segment has two oval 
VCMlOMESHOUSK:...,0 5.2: Soneetarta ittberereer Rima eleryre ai: S. dubia dubia Say. (319) 
us oraxeta Ol aul sinlaic lc: «<a ae ne ror eran etiam tee he amet or ee hr Wyk Rie at tors Shs 12. 
12. Venter of abdomen all ferruginous, body covered with greyish white hairs, 
Branennior, Sihedayelhye wie qblevaObIS 5 a5 dom do cnaoao dso S. fulviventris n. sp. (323) 
Venter of abdomen not all ferruginous, maybe black or yellow ferruginous. 13. 
13. Thorax covered with yellowish grey hait; antenna black. S. consors Sauss. (317) 
Thorax not covered with yellowish grey hair. (Yellow or darker)........ 14 
i Wises tuliginous: throughoubs. ac. 55:4 gnats oe S. nobilitata Fabr. (832) 
Win Scan Otel oimouss GhhoUushOtit mmeeer eke ater cies clei cl eisaiet iam cme aia 15. 
15. Ventral abdominal segments beyond the second, dark ferruginous 
slightly mottled with yellow; dorsal segments 3, 4, 5, 6, yellow except 
the anterior edges slightly ferruginous......... S. otomita Sauss. (333) 
Ventral abdominal segments beyond the second, not dark ferruginous 
hovel atonreanavoxrel (eral, Wald aleni<el KON, ao hile Grok ERRNO CMR OL ech A ae cole 16. 
16. Head all black except yellow marks behind the eyes and along the inside 
edgesioi thellowermlObesios the leyesamemeerr ei iii aie Sane I?/e 
Head, except yellow marks behind the eyes and along the inside edges of 
GhenlowerloMesten Ob alle nlackpey ys wacteleneiste sepa te else sehele ee sie ieee muaewe 18. 
17. The dorsum of the abdomen has no yellow on it, except on the third seg- 
ment which has two oval yellow spots....... S. inconstans Cress. (327) 
The dorsum of the abdomen beyond the first segment, more or less 
IMATE anvits Maye llOWerd sce vc iecsecnss o> eae S. flavocostalis Cress. (321) 
18. Top of head behind the lower ocellus and body color of the thorax 
a Clare e IN peers sn (aeoeicy fe oie eee | whe ai ae sits S. lecontei Cress. (329) 
Top of head behind the lower ocellus and body color of the thorax 
RET AACT INO LI Ste tert, tape ey ere tan cuctauntyonaet ag ception oe S. ridingsii Cress. (834) 
DESCRIPTIONS. 
The lists of references to these insects given by Saussure and 
Sichel and especially by Dalla Torre are so full that it has not 
seemed necessary to copy them here. It has therefore been my 
intention only to make the American references complete by 
publishing any that were not in Dalla Torre’s Catalogue: 
Genus Triscolia. Saussure and Sichel. 
Genus Triscolia. SAUSSURE and SICHEL, Cat. Spec. Gen. Scolia, 1864, p. 14. 
Generic characters: Three closed cubital cells. 
Type: Scolia flavifrons Fab. 
BIBLIOGRAPHY. 
Ascoli GUERIN, Duperry, Voy. Coquille, Zool. II, 2, 1830, p. 247. 
Triscolia Sauss. and SICHEL, Cat. Spec. Gen. Scolia, 1864, p. 14. (subgenus). 
Scolia BinGHaAM, Fauna. Brit. India, Hymen., Vol. I, 1897. 
Scolia ASHMEAD, Synopsis, Can. Ent., 1903, p. 7, (subgenus). 
Ascoli ScurottKy, Deutsch, Ent. Zeitschr., 1910, Heft. II, p. 196. 
