92 NEW YORK STATE MUSEUM 



P2) Front metatarsi shorter than their tibiae 

 q Thorax produced eonically in front 

 over the head ; hind tibiae dilated 

 and hairy, pi. 34, fig.24 



43. Eurycnemus 

 qq 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 tropic genera 

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



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



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

 ff Antennae with fourteen or fewer Joints 



g Thorax rounded and not produced over the head ; antennae 



with thirteen or fourteen joints ; legs of moderate length 



h 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. T e r s e s t h e s 



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.17, figs. 13 to 16 (Oroup Ceratopogon) 



i Wings hairy ; last joint of tarsus with an empodium 

 j Empodjium well developed ; almost as long as the 

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



3. Ceratopogon 

 Jc 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) 



;■;■ Empodium not so distinct, less than half as long as 



the claws ; these furnished with setae on the under 



y side, pl.l8, 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 R2, pl.17, 



fig.15 6. B e z z i a 



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

 pl.17, figs. 13, 14, i(j 

 k Media wanting, pl.17, fig.l3 



7. Brachypogon 



^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. 



