792 M. W. R. de V. GRAHAM 



times as long as broad, much shorter than the first funicular segment ; anelli 

 strongly transverse, the second only slightly longer than the first ; funicle 

 varying from moderately stout to very slender, clothed with longer hairs which 

 stand out at about 45 °, the length of these hairs is at least half the breadth of 

 the segments that bear them ; funicular segments relatively longer, the first 

 from more than 1-5 times to 5-5 times, as long as broad ; the sixth usually 

 longer than broad. Eyes smaller, somewhat more widely separated ; malar 

 space more than one third the length of an eye. Antennae inserted well above 

 the level of the ventral edge of the eyes. Propodeum with plicae distinct and 

 usually sharp ; costula sometimes indicated. Fore wing long and broad, 

 immaculate or at most slightly infumate (Arthrolytus Thomson, s. str.) . . 3 



2 (1) Gaster with a pale spot or transverse band on the basal tergite. Femora pale. 



Fore wing with a fuscous spot or spots . . . ocellus (Walker) (p. 793) 



- Gaster immaculate. Femora mainly infuscate. Fore wing immaculate 



glandium Boucek (p. 793) 



3 (1) Antennae with 6 funicular segments and a 3-segmented clava ; combined length 



of pedicellus and flagellum 1-3-1-4 times the breadth of the head ; segments 

 of funicle short, the first at most twice as long as broad, the sixth at most 

 slightly longer than broad. (Czechoslovakia) . . slovacus sp. n. (p. 793) 



- Antennae either with 7 funicular segments and a 2-segmented clava ; or else 



with all 9 flagellar segments separated by peduncles ; combined length of 

 pedicellus and flagellum 2-1-2-75 times the breadth of the head ; segments 

 of funicle elongate, the first 3 -5-5 -5 times, the seventh 1-8-3 times as long 

 as broad ............ 4 



4 (3) Antennae with 7 funicular segments and a 2-segmented clava. Fore wing with 



costal cell 9-9-5 times as long as broad ; speculum bare or nearly so. 



Antennae with combined length of pedicellus and flagellum 2-2-2-3 times 

 the breadth of the head ; seventh funicular segment 2-5-2-6 times as long 

 as broad ; scape hardly expanded in its upper half, the subapical shiny boss 

 tending to be indistinct ...... discoideus (Nees) (p. 795) 



- All 9 flagellar segments separated by peduncles, therefore no clava is differen- 



tiated. Fore wing with costal cell 10-13 times as long as broad ; speculum 

 sometimes effaced by scattered hairs ....... 5 



5 (4) Antennae with combined length of pedicellus and flagellum 2-1-2-35 times the 



breadth of the head ; scape distinctly expanded in its upper half, where 

 there is a distinct shiny boss on its outer aspect. Fore wing with speculum, 

 on lower surface of wing, more or less effaced by scattered hairs ; basal cell 

 partly, sometimes entirely, pilose. Larger species, up to 3-1 mm. 



maculipennis (Walker) (p. 794) 



- Antennae with combined length of pedicellus and flagellum 2-5-2-75 times the 



breadth of the head ; scape hardly expanded distally, its shiny boss often 

 indistinct. Fore wing with speculum and basal cell bare or with only a few 

 hairs. Smaller species, up to i-8 mm. ...... sp. indet. 



ARTHROLYTUS (AN ARTHROLYTUS) sgen. n. 



Derivation : Greek a, not, compounded with Arthrolytus. (Gender : Masculine). 

 Type-species : Eutelus ocellus Walker. 

 For characters, see key (p. 791). 



