LIST OF NEUEOPTEEA IN BBITISH MUSEUM. 263 



insect possesses ocelli, was incorrect : the vertex has little prominences 

 which have much the appearance of ocelli, but, on closer examination, 

 I can discover nothing to indicate that they are more than blind 

 tubercles. The plantulse are double as in Nymphes and Myiodactylus ; 

 yet the antennae are those of Osmylus. I retain it doubtfully in 

 Myiodactylus for the present. It is Australian, and the $ possesses 

 ventral valves and a borer analogous to those described lower down 

 under Stenosmylus stenopterus. 



N. SEJUNCTUS, p. 230, d=Myiodactylus sejunctus, Walker. Here I 

 again erred in referring this to Osmylus ; it is a true Myiodactylus, 

 but of a form difiPerent from that M. osmyloides, the typical species, 

 and in outward appearance is more like a Chrysopa. The following 

 description is drawn up from a male in my collection from Northern 

 Australia : — 



Myiodactylus sejunctus. Walker. Viridi-ilavus. Antennae flavK, 

 apicem versus subvirescentes. Caput flavum, vertice linea media im- 

 pressa rufescente ; mandibulae nigrse. Oculi plumbacei. Prothorax 

 longior quam latior, antice angustior, viridi-flavus, longe flavescenti- 

 hirsutus ; antice macula media lanceolata piceo-brunnea. Meso- 

 thorax metathoraxque brunneo-flavi, ille antice fovea media piceo- 

 brunnea. Alae elongatae, angustatae, hyalinae, costa fere recta, area 

 costali angusta, pterostigmate vix obscuriore ; anticae venis longitudi- 

 nalibus pallide viridibus, venulis transversalibus nigris (oostalibiis in 

 parte pallidis) : posticae venis venulisque fere omnino pallide viridibus ; 

 costalibus ad apices, pterostigmaticalibus omnino, nigris. Pedes 

 virescentes. Abdomen flavum, utrinque nigro punctatum ; appendi- 

 cibus analibus magnis, superioribus in digitulos furcatos productis, in- 

 ferioribus processu cylindrico fere hyalino, viridi terminato, instructis. 

 ( c? .) Long. Corp. 6'" ; exp. alar. 1" 9'". 



Hab. in Australia boreali et occidentali. In collect, auct. et Mus. Brit. 



Antenncs not half the length of the wings, thickened beyond the middle, 

 yellow, somewhat greenish towards the apex, slightly hairy. Head 

 yellow, the crown with a narrow impressed longitudinal median 

 brownish line ; mandibles blackish. Eyes lead-colour. Prothorax 

 about twice as long as broad, narrowed in front, hairy, yellow, with 

 a lanceolate pitchy brown spot in the middle of the anterior portion, 

 and a vestige of a spot on the posterior margin. Meso- and meta- 

 thorax much broader than the prothorax, yellow, the former with a 

 pitchy brown fovea in the middle of the anterior median lobe. Wings 

 elongate, narrow, subacute, the costal margin nearly straight, and the 

 costal area narrowed j hyaline, the pterostigmatical region rather 

 obscured, all the veins and veinlets finely hairy, the costal margins 

 minutely nigro-punctate : anterior wings with all the longitudinal 

 veins (excepting the last on the dorsal margin) pale greenish ; trans- 

 verse veins and marginal veinlets black, those in the costal area with 



22* 



