154 Psyche [August 



The fourth species, Pepsis arenaria Fabricius, is a synonym of 

 Sphex {Ammophila Kirby and Auctorum) {Psammophila) hirsuta. 



Inasmuch as either Psammophila Dahlbom (18-1'2) or Proteros- 

 phex Fernald (1905) would have to fall as a synonum of Ammo- 

 hia Billberg it has seemed advisable to choose the latter name as 

 the synonym, so the first species which could with propriety be 

 chosen as the type of Billberg's genus is here designated as such. 



After carefully reviewing the case of Sphex versus Ammophila, 

 I can do nothing but agree with Dr. H. Fernald, and unless some 

 earlier designation for the types of the genera in question can be 

 found, I can see no way this change can be avoided. The objection 

 offered by Dr. F. F. Kohl^ only serves to put off the day when our 

 nomenclature will be put on a firm basis. 



Genus Lestica Billberg. 

 Lestica Billberg, Enumeratio Insectorum, 1820, p. 107. 

 Type. — Crabro suhicrraneus Fabricius. 

 Syn. Ceratocolus Lepeletier, Ann. Ent. Soc. France, vol. 3, 1834, p. 739. 



Originally treated thus: (Eg. equals Billberg.) 



' G. Lestica Eg.— Sphex Linn. VII. — Vespa Linn. Gffr. — Crabro Auct. pier, 

 subterranea Svec. Fbr. fossoria Svec. Linn. 



peltata 6 cincta Fbr. 



cribaria Linn. alata Germ. Pnz. 



clypeata dimidata ." 



Included species: 



1. Crabro svbterraneus Fabricius, a common European species 

 which may be chosen as the type; placed in Ceratocolus by Dahl- 

 bom in 1845. 



2. Crabro peltata Fabricius, said to be a synonym of cribrarius 

 Linnseus. 



3. Vespa cribrarius Linnaeus, designated as the type of Crabro in 

 1837. 



4. Sphex clypeata Linnaeus, a common European species; placed 

 Thyreus in 1864. 



5. Sphex fossorius Linnaeus, a well-known species; placed in 

 Solenivs in 1870, and erroneously chosen as the type of Crabro in 

 1899. 



»Anii. k. k. Naturhist. Hofmus. Wien Bd. 21, 1906, pp. 228-229. 



