A REVISION OF THE GENUS LEPTOCONOPS, SKUSE. 27 



(2) Antennae composed of fourteen segments {Leptoconops, sens, sir.) . . . . 3 



Antennae composed of thirteen segments {Holoconops, subgcn.) . . . . 13 



(3) Claws simple . . . . . . . . . . . . . . . . . . 4 



Claws toothed . . . . . . . . . . . . . . . . . . 10 



(4) Metatarsi with distinct spines . . . . . . . . . . . . . . 5 



Metatarsi without spines (excluding the pair at the apex) . . . . . . 6 



(5) Abdomen whitish or yellow ; lamellae approximately one-fifth the length 



of the wing irntans, Noe (p. 14). 



Abdomen dark brown ; lamellae approximately one-third the length of 

 the wing braziliensis, Lutz (p. 13). 



(6) Fifth vein bifurcating considerably beyond extremity of costa 



fhodesiensis, sp. n. (p. 14). 

 Fifth vein bifurcating before or below extremity of costa . . . . . . 7 



(7) Third palpal segment greatly swollen; antennal segments 4-13 distinctly 



broader than long (American species) .. .. /orrt-ws, Twns. (p. 15). 



Third palpal segment elongate, slightty swollen ; aiitennal segments 4-13 

 subspherical or longer than broad (Australian species) . . . . . . 8 



(8) Smaller species (wing length 1.3 mm.) ; last antennal segment less than 



twice as broad as long . . . . . . . . stygius, Skuse (p. 10). 



Larger species (wing length 2-0 mm.) ; last antennal segment more than 

 three times as broad as long . . . . . . . . . . . . 9 



(9) Antennae very long, last segment at least six times as long as broad 



longicornis, sp. n. (p. 11). 



Antennae shorter, last segment at most three and one-half times as broad 

 as. long.. .. .. .. .. .... grandis, sp. n. {p. \2). 



(10) Metatarsi with very large spines .. .. .. si amensis, sp. n. {p. 20), 



Metatarsi without spines (excluding the pair at the apex) . . . . 11 



(11) Antennal segments 4-13 transversely oval to spherical, the last segment 



slightly longer than the two preceding together . . bczzii, Noe (p. 17). 



Antennal segments 4-13 all broader than long, the last segment as long as 

 the three or four preceding together . . . . . . . . . . 12 



(12) Abdomen yellow ; last antennal segment as long as the three preceding 



together . . . . flaviventris, Kieff. (p. 18). 



Abdomen red ; last antennal segment as long as the four preceding 



indicus, Kieff. (p.. 19). 



(13) Metatarsi without spines ; fifth tarsal segment shorter than fourth 



* lacteipennis, Kieff. (p. 23). 



Metatarsi with distinct spines ; fifth tarsal segment longer than fourth .. 14 



(14) Last antennal segment twice as long as broad, segments 4-12 spherical . . 



interniptus, End. (p. 23). 

 Last antennal segment three to four times as long as broad, segments 4-12 

 transversely oval to spherical . . . . . . . . . . . . 15 



(15) Claws equal, one simple, the other with a minute basal tooth 



kerteszi var. peneti, Langeron (p. 22). 

 Claws equal and simple . . . . . . . . . . . . . . 16 



(16) Spermathecae obovate, narrow anteriorly (Mediterranean Region) 



kerteszi, Kieff. (p. 21). 

 Spermathecae subspherical (America) kerteszi vox. americanus, n. (p. 22). 



