TENTHIIIDINID.E. 



clava distincte articulata ; 



articulis I : 



2: 



3: 



Calcaria acuminata, simplicia : . . . 



AntenncB mediocres ; (maris ciliatse aut furcatae.) 



Ala anliccB areola marginali ramulum emitter) te : 



terminali : 

 Antennae mediocres, multiarticulatse, pectinatae aut serratse 



baud pectinatffi, aut serrata? 

 TibicB i-posticcB calcaribus 2-bus instructee : . 

 3-bus instructce : . 

 Antennm 9 articulatae ; corpus breve. 



Areola 1 marginali, 3 submarginales subaequales : 



2nda parva : 

 4 submarginales. 

 Tarsi omnes simplices: .... 



postici art", l-^o elongate compressissimo : , 



AreolcB 2 marginales ; corpus mediocre aut elongatum. 

 Areolae 4 submarginales. 



AntemicB art». 3 '"'' 4-'° longiore : 



3-"° et 4-'° cequalibus : 

 3 submarginales ; prima brevissima : 

 AntenncB art". 3-''° 4-'° longiore : 



3-''° et 4-'° sequalibus : 

 3 submarginales prima 2-*" non breviore ; 

 Antennce art°. 3 ''" 4'" longiore : . 

 S-"" et 4'"' ffiqualibus : 

 Antenna 9-10 articulatje, medio crassiores, art" 3-''° 4-'» longiore. 

 Areola 4 submarginales, 1 marginali : antenna 9-art*- 

 2 marginales ; 

 ^wfe/m^e 10-articulata3: 



9 -articulatae breves ; 



Ala hyalinse, tenues : 



obscurae, incrassatae : 

 Ante7ina 9-articulatas elongatce, tenues : 

 3 submarginales, 2 marginales : antenna 9 art*: : . 

 ^jitenwiB 11-13 articulatae: .... 



Labrum obsoletum. 



Antenna subclavatae : . 



setaceae : . . . . 



14. Messa. 



In accordance with the principles before alluded to, I shall proceed 

 to describe the insects included by Leach in 



§ 1. Anlennce short and clavate, w^ith the third joint the longest; anterior wings 

 with 3 margmal and 2 submargmal areolcts. 



