92 NEW YOUK STATE MUSEUM 



pp Front metatarsi shorter than their tibiae 

 q Thorax produced couically in front 

 over the head ; hind tibiae dilated 

 and hairy, pi. 34, fiig.24 



43. E u r y c n e m u s 

 <j(j Thorax moderately produced ; hind 

 tibiae not dilated 



44. M e t r i o c n e m u s 

 ee Antennae with thirteen to fifteen joints 



f Antennae fifteen-jointed ; European and ti'opic genera 

 g Wing hyaline ; legs very long ; antennal joints of varying 



lengths, pl.35, figs. 1, 2, 3 30. M a c r o p e z a 



gg Wings spotted (West Indies and Mexico) ....5. Oecaeta 

 ff Antennae with fourteen or fewer Joints 



g Thorax rounded and not produced over the head ; antennae 



with thirteen or fom-teen joints ; legs of moderate length 



/( Antennae with thirteen joints ; wing venation as shown 



on pl.35, figs. 10 and 14 



i Palpi with three joints. (This is probably a synonym 



of the next) 2. Tersesthes 



ii Palpi with four joints 1. Leptoconops 



hh Antennae with fourteen joints, plumose in the male, 

 sparsely haired in the female ; wing venation as on 



pl.l7, figs. 13 to 16 (Group C eratopo g o n) 



i Wings hairy ; last joint of tarsus with an empodium 

 j Empodium well developed ; almost as long as the 

 claws, these without setae, pi. 18, fig.7 



3. Ceratopogon 

 A' Hind metatarsi shorter than the second tarsal 

 joint, or both of equal length 



(Sub. gen. Forcipomyia)' 

 kk Hind metatarsus longer than the second joint 



( Sub. gen. Ceratopogon) 



jj Empodium not so distinct, less than half as long as 



the claws ; these furnished witli setae on the under 



side, pl.18, fig.8 4. Culicoides 



ii Wings bare ; pulvilli and empodium wanting 

 ;■ Wing with Ri distinctly separated from R2+3 and not 

 connected with it by the crossvein-like Rj, pl.lT. 



fig.15 6. Bezzi a 



// Wing with R^ present; cells sometimes indistinct, 

 pi. 17, figs. 13, 14, 10 

 k Media wanting, pi. 17, fig.13 



7. Brachypogou 



'According to Kieffer (1902) this subgenus can not stand, because in some 

 species one sex would be classed here and the other sex with the next 

 subgenus. 



