LEPTOCONOPS 



803 



(n) Wings bare; pulvilli and empodium wanting. 



{j) Wing with distinctly separated from R2+ 3, and not connected 



with it by the cross vein like Ro — (5) Bezzia. 

 [jj) Wing with Rg present, cells sometimes indistinct. 

 {k) Media wanting — (6) Brachypogon. 

 {kk) Media present. 



(/) Femora unarmed — (7) Ceratolophus. 

 (ll) Some of the femora spinose beneath — (8) Palpomyia. 



Leptoconops Skuse, 1889. 



Synonyms. — Tersesthes Tov/nsend, 1893; Myderofypus Noe, 1905. 

 The flies of the genus are found in Egypt, AustraHa, New Mexico, 

 and Italy. 



The various species are L. kertSszi Kieffer, 1908 ; L. stygius Skuse, 

 1889; L. torr ens Townsend, 1893; L. hezzii Noe, 1905; andL. initans 

 Noe, and they can be recognized as follows: — 



A. Antennae of the female, twelve j oints, with verticillates twice as 

 long as the thickness of the joint. Palpi three-jointed. Costal 

 nervure stops at the cubitus. Legs without spines, except four 

 anterior; metatarsi-tarsal hooks simple (Egypt — L. kerieszi Kieffer). 



B. Antennae of the female thirteen articles. 



I. Palpi with four joints, legs without spines, tarsal hooks 

 simple, costal nervure stops at the cubitus, fiagellum 

 with dense verticillates (Australia — L. stygius Skuse). 

 IL Palpi with three joints. 



[a) Legs without spinules, tarsal hooks simple, costal 

 nervure nearly to the extremity of the wing, verticil- 

 lates of flagelli a little shorter than thickness of 

 joints (New Mexico — L. torrens Townsend). 

 {b) Legs armed with spinules, especially the tibias. 



(1) Tarsal booklets of the female with one large basal 



tooth; those of the male unequal; the anterior 

 with one long, curved, S-shaped tooth; the pos- 

 terior with a short, arched tooth (Italy — L. hezzii 

 Noe). 



(2) Tarsal booklets of the female with one strong basal 



tooth, fiagellum with some verticillates, spinose, 

 and stronger than in L. hezzii (Italy — L. irritans 

 Noe). 



New species are L. laurcB Weiss, 1912, Tunisia; and L. inferruptus Enderlein, 

 1907, South Africa. 



Ceratopogon sensu stricto Meigen, 1803. 



Definition. — Ceratopogoninae, with long-haired wings, especially 

 in the female, and with a very apparent and hairy empodium on 

 the last joint of the tarsus. 



Type. — Ceratopogon hipundatns Linnaeus. 



Kieffer has subdivided this genus into the subgenera Ceratopogon, 

 Atrichopogon, and Forcipomyia, but none of the species of these 

 genera are definitely known to suck the blood of vertebrates, 



