BY FREDERICK A. A. SKUSE. 795 



Ohs. — The great cross- vein is situated in very much the same 

 position as in 0. australis ; the marginal cross-vein as in 0. alinna^ 

 Zett. In one wing there is a supernumerary cross- vein near the 

 base of the second posterior cell, thus inclosing a small square cell. 



Genus 9. Leiponeura, gen. no v. 



One sub-marginal cell ; four posterior cells ; discal cell sub- 

 triangular ; 710 marginal cross-vein ; tip of auxiliary vein before 

 or beyond the origin o f second longitudinal vein ; the sub-costal 

 cross- vein at or a little before the tip of the auxiliary vein ; third 

 longitudinal vein considerably arcuated, joining margin close to 

 tip of anterior branch of fourth longitudinal. Antennae 16-jointed, 

 short. Tibise without spurs at the tip ; empodia distinct ; ungues 

 smooth. 



Rostrum short, about half the length of the head. Palpi short, 

 the first and last joints of equal length, and about equal to the second 

 and third taken together (PI. xxiv., fig. 53, palpi of L. brevivena). 

 Antennae short, if bent back would not reach the root of the 

 wings ; joints of thescapus of equal length, sub-cylindrical ; joints 

 of the flagellum elongate, with a minute pubescence and beset with 

 short hairs : in L. brevivena the first two or three flagellar joints 

 are sub-globose (PI. xxiv., fig. 54). Eyes glabrous; front rather 

 narrow. Coll are short. The thorax with distinct shining humeral 

 pits ; transverse suture distinct. Upper valves of the ovipositor 

 rather long, slender, pointed, curved upwards towards the extremity. 

 Legs moderately long, slender, the femora incrassated at the tip ; 

 ungues very small, smooth. Wings rather long and narrow, wdth 

 a semi-diaphanous appearance, and a weak iridescence ; the pubes- 

 cence on their surface extremely microscopic, as in Antocha* 

 Anal angle of wings inconspicuous. Veins with a minute 

 pubescence. Stigma long, indistinct. The tip of the auxiliary 

 vein reaches beyond the origin of the second longitudinal vein in 

 L. gracilis, a distance about twice the length of the great 



* I could discover only minute dots with a \ in. objective. 



