Terminology 



For a detailed account of ceratopogonid anatomy and for an 

 explanation of the terminology used in taxonomic descriptions in 

 this family, the reader is referred to the general accounts of Carter, 

 Ingram, and Macfie (1920), Edwards (1926), Lee (1948), Wirth 

 (1952), and Tokunaga and Murachi (1959). We would like to explain 

 several details of terminology and usage in this paper that might 

 otherwise cause confusion. 



Antenna: In the females of Ceratopogonidae, the 3 primary seg- 

 ments of the Dipterous antenna — scape, pedicel, and flagellum — 

 form 15 divisions or antennomeres that we number I to XV in our 

 descriptions. The first (I) is the ringlike scape more or less hidden 

 in the head capsule; the second (II) is the large and globular pedicel; 

 the distal 13 divisions (III-XV) form the flagellum of which the 

 distal 5 usually differ in length and structure from the preceding 8. 

 The antennal ratio (abbreviated All in our descriptions) is the 

 value obtained by dividing the combined lengths of the distal 5 by 

 the combined lengths of the preceding 8 flagellomeres. 



Wing: Wing length is measured from the basal arculus to the 

 wingtip; the costal ratio (CR) is the value obtained by dividing the 

 length of the costa, measured from the basal arculus to the end of 

 the second radial cell, by the wing length. In our descriptions, the 

 first and second radial cells are abbreviated IRC and 2RC, 

 respectively. 



Legs: On the hind legs, the tibia bears at the distal end a blunt 

 spur on the flexor side and an oblique row of long tibial spines. The 

 tarsal ratio (TR) is the value obtained by dividing the length of the 

 hind basitarsus by the length of the second hind tarsomere. 



Abdomen: Length of the spermatheca is obtained by measuring 

 from the tip of the sclerotized portion of the neck to the apex of the 

 spermatheca. In the male genitalia, we are continuing the traditional 

 use of the term "paramere" for the internal sclerotization between the 

 aedeagal sclerotization and the base of the basistyle, though we are 

 aware of the anatomists' arguments that this term could be applied 

 better to the combined basis tyle-dististyle and the term "claspettes" 

 applied to the internal structure. In the genus Stilobezzia, the term 

 "submedian lobes" seems preferable for the structures that are ordi- 

 narily called "apicolateral processes" in other genera and sometimes 

 even in this genus. Likewise, the processes of the basal portion of the 



