1895.] NATURAL SCIENCES OF PHILADELPHIA. 265 



Abdomen with segments 1-6 spotted with yellow. Color varying 



from black to rufous, with intermediate forms grandis. 



Abdomen rod and black, not spotted Hbgardii. 



MALES. 



Joints of flagellum not strongly rounded out beneath. 



Black, legs rufous speciosus. 



Rufous in greater part. 



Abdomen rufous, the iirst three segments maculated with yel- 

 low convallis. 



Abdomen rufous and black Hbgardii. 



Joints of flagellum strongly rounded out beneath; abdominal markings 

 not confined to the iirst three segments, all the dorsal segments 



being maculated. Color varying from black to rufous 



grandis. 



1. Sphecius speciosus Dr. 



Sphex speciosus Drury, 1. c. 



Vespa tricincta Fabricius, Syst. Ent., p. 363. 



Stizus vespiformis Latreille. I.e. 



Stizus speciosus Lepeletier do St. Fargeau et Serville, Encycl. Method. 



pi. 382, fig. 6. 

 Hogdrdia speciosa Lepeletier <le St. Fargeau, 1. c. 

 Sphecius speciosus Dahlbohm, 1. c. 

 Stizus speciosus Packard, Proc. Ent. Soc., Phila., VI, p. 442. 



Common in the Eastern United States ; Texas: Mexico (Hand- 

 lirsch). 



2. Sphecius convallis Patt. 



Stizus grandis Packard (non Say) 1. c, p. 44-.'. 



Sphecius speciosus var. convallis Pattern, Bull. I T . S. Geol. Survey, 



p. 343, 1879, $ 2 . 

 Sphecius rap/or Handlirsch, 1. c, p. 461. $ 9 . 

 Sphecius convallis Fox. Proc. Calif. Acad. Sci., [2] IV, p. 103. 



Kansas ; Texas ; California ; Lower California. The second ab- 

 dominal segment in $ is not sparsely punctured like the 9 , but is 

 about the same as in the $ of speciosus. 



3. Sphecius Hogardii Latr. 



S/i~us Hbgardii Latreille, Genera Crust et Ins., IV, p. 100, Plate XIII. 



f.12, 9. 

 Hogardia rufescens Lepeletier de St. Fargeau, Hym. Ill, p. 289. 

 Stizus Hogardii Smith, Cat. Hym. Brit. Mus., IV, p. 336, Plate. VIII. f. 4. 



This is a West Indian species, but has been recorded from Key 

 West and the Bahamas, and must therefore be added to our lists. 



4. Sphecius grandis Say. 



Stizus grandis Say, West. Quart. Pep. II. p. 77. 



Stizus fervidus Cresson, Tr. Amer. Ent. Soc. IV, p. 223, 2 



Stizus nevadensis Cresson. ibid, V, p. 99. $ 



