March, 1896.J FOX, NORTH AMERICAN SPECIES OF NySSON. 
13 
2. Nysson fuscipes Cress. 
Paranysson fuscipes Cresson, Tr. Am. Ent. Soc. IX, p. 274, $ 9. 
Nysson fuscipes Handlirsch, 1 . c. p. 301; pi. 4, f. 23. 
Washington; Oregon; California. As pointed out by Handlirsch, 
this species seems confined to the extreme Western States, in fact, those 
bordering on the Pacific Ocean. 
3. Nysson solani Ckll. 
Nysson solani Cockerell, Tr. Am. Ent. Soc. XXII, p. 294, £. 
Las Cruces, New Mexico (Cockerell). This species has the hind 
tibiae serrated, agreeing in that respect with the two preceding species, 
but the metanotum is not lobed. It seems to be isolated from the other 
species as far as its relationship is concerned. The only known speci¬ 
men lacks the second (petiolated) submarginal cell, which deficiency I 
consider to be but an anomaly. 
4. Nysson spinosus Forster. 
Sphex spinosa Forster, Novae Species Insect, p. 87. 
Nysson spinosus Handlirsch, 1 . c. p. 337, pi. IV, f. 5, 17, 25-28, pi. V, f. 11. 
9 g. (For full synonymy see this work.) 
North America (Handlirsch). I have only seen European speci¬ 
mens for which I am indebted to Herr F. F. Kohl, of Vienna. 
5. Nysson plagiatus Cress. 
Nysson aurinotus Packard (non Say), Proc. Ent. Soc. Phila. VI,p. 440, £ 
Nysson plagiatus Cresson, Tr. Am. Ent. Soc. IX, p. 276, g Handlirsch. 
1. c. p. 348, pi. 4, f. 11, 21, pi. 5, f. 10. 
Illinois; Indiana; Louisiana (Handlirsch); Texas; Washington. 
Our largest species. 
6 . Nysson aequalis Patt. 
Nysson cequalis Patton, Can. Ent. XI, p. 212, Handlirsch, 1 . c. p. 350, 
pi. 4, f. 10, 22, 9 $. 
Massachusetts (Patton); Camden County, New Jersey (in July); 
Baltimore, Maryland, and South Carolina (Handlirsch); Georgia, 
Illinois. 
7. Nysson aurinotus Say. 
Nysson aurinotus Say, Boston Journ. Nat. Hist. I, p. 368; Handlirsch, 1 . 
* c - P- 353 * Pk 5 « f - I 3 - 
Indiana (Say) ; Illinois (Handlirsch). Unknown to me. 
8. Nysson Frey=Gessneri Hdl. 
Nysson Frey-Gessneri Handlirsch, 1 . c. p. 355, $ , pi. 5, f. 12. 
Georgia (Handlirsch). Unknown to me. 
