Acta Societatis pro Fauna et Flora Fennica, 37, N:o 6. 5 



omnibus parce verticillatim pilosis, pilis articuli ultimi in 

 apice sitis, articulo tertio praeterea pilositate brevi densa 

 leviter curvata obsito. Palpi quadri-articulati, articulis subae- 

 que longis, secundo securiformi. Alae magnae, latiusculae, 

 subcosta usque ad apicem recta, basin cellulae radialis se- 

 cundae nonnihil superante, subcosta secunda ab apice pri- 

 mae haud longe remota, sectore radii arcuato, ante medium 

 alae orto, vena transversa radiali nulla, vena radiali secunda 

 primam versus praerupte ascendente et huic in parte sua 

 subbasali fortiter appropinquata, deinde apicem versus ab 

 hac sensim nonnihil recedente, vena media triramosa, vena 

 transversa media praesente, vena axillari usque ad medium 

 marginis postici alae protenta. 



Head rounded, rostrum short; palpi four-jointed, joints 

 subequal in length with a few long hairs and moreover 

 rather densely clothed with a short erect pilosity, oblong, 

 but the second joint hatchet-shaped, its inferior apical angle 

 being produced downward and the under margin straight, 

 oblique; antennae 12-jointed, first joint oblong, second glo- 

 bose, much broader than the adjacent joints, first joint of 

 flagellum elongately conical, slightly longer than the three 

 following joints taken together, joints 2—10 of flagellum 

 oblong, narrow, subequal in length, apical joint obtriangular, 

 broadening from the base to the truncate apex, all antennal 

 joints with a few verticillate hairs in the middle, except the 

 apical joint in which the hairs are placed at the end of the 

 joint, first joint of flagellum moreover with a dense and 

 short curved pilosity. Thorax longitudinally strongly convex. 

 Wings proportionally large and broad, axillar angle broadly 

 rounded, Sc somewhat passing base of cell R 2 , straight along 

 its whole course to the very tip, Sc 2 perpendicular, not 

 much removed from apex of Sc t , Rs arcuate, starting before 

 the middle of the wing, R 2 ascending from its base to very 

 near R 1? then gradually and not strongly receding from it, 

 radial cross-vein wanting (only in one of many examined 

 specimens it is present in one of the wings, having about 

 the same position as in Cladura), petiole of cell R 4 ^ 5 very 

 short, M three-branched, m present, all longitudinal veins 



