PAMPHILIUS.— CEPHUS. 67 



The joints of the antennae are thicker than in D. nigriventris, and they are not so 

 distinctly attenuated at the base, which is but slightly thinner than the apex ; the third 

 joint is shorter in comparison with the following, and the fourth cubital cellule is 

 shorter. 



Subfam. LYDINA. 



PAMPHILIUS. 



PampMlius, Latreille, Hist. Nat. Crust. Ins. iii. p. 303 (1802) . 

 Lyda, Fabr., Syst. Piez. p. 43 (1804). 



This genus is characteristic of the temperate regions, and is almost if not quite 

 absent from the tropics. Fifty-nine species have been described from Europe, Japan, 

 and North China, and fifty-four are known from America north of Mexico. Only two 

 species are known from Central America and none from the Ethiopian Region. 



1. Pamphilius variegatus. 



Lyda variegata, Norton, Trans. Amer. Ent. Soc. ii. p. 335; Catal. p. 189, (J 1 . 

 Hab. Mexico 1 . 



2. Pamphilius creditus. 



Lyda credita, Norton, Trans. Amer. Ent. Soc. ii. p. 334 ; Catal. p. 188, $ x . 



Hab. Mexico l . 



Fam. CEPHID-ffi. 



CEPHUS. 



Cephus, Latreille, Hist. Nat. Crust. Ins. iii. p. 303 (1802). 



This genus is numerously represented in the Palsearctic and Nearctic Regions, but 

 is absent apparently elsewhere, except from Mexico and Japan. 



1. Cephus (?) mexicanus. 



Cephus mexicanus, Guerin, Icon. Reg. Anim. iii. p. 403 ; Norton, Trans. Amer. Ent. Soc. ii. p. 344 ; 

 Catal. p. 198, ? \ 



Hob. Mexico 1 . 



The antennae of C. mexicanus are described as 7-jointed, which may be an error for 

 17-jointed. 



kk2 



