252 ME. E. M'lACHLAN on new species etc. or NEtTEOPTEEA. 



imlated with black. Prothorax nearly quadrate, above pale greenish 

 yellow, beneath whitish. Meso- and metathorax above pitchy black, 

 beneath whitish. Wings hyaline, the margins and neuration sti'ongly 

 ciliated : anterior wings with a large fuscous blotch on the costa be- 

 fore the apex, enclosing three or four pale cellules below the radius ; 

 a fuscous clouding at the extreme base ; veins and veinlets whitish, 

 the two first costal veinlets, those in the clouding at the extreme base 

 of the wing, two or three about the commencement of the sector, the 

 gradate series, and those in the fuscous blotch dark blackish fuscous : 

 posterior wings about one-half narrower than the anterior, acute ; a 

 large fuscous spot on the costa before the apex ; veins and veinlets 

 whitish, some of the costal, the gradate series, and those in the costal 

 spot, blackish. Legs white, ciliated ; the tips of the tarsi obscure. 

 This species is closely allied to C. nigriceps ; botli are extremely 

 beautiful and delicate insects, and allied to C. eleganSy Guerin, 

 belonging to a group apparently peculiarly Brazilian. 



B. Labro antice emarginato. 



Chrysopa GiGANTEA, n. sp. Olivaceo-grisca. Antennae alis breviores, 

 nigrae, articulis duobus basalibus griseis. Palpi labrumque rufo- 

 brunnei. Prothorax brevis, vix longior quam latior ; utrinque lineis 

 duabus parvis nigris. Alae hyalinse, vix albido tinctse ; spatio ptero- 

 stigmatico olivaceo-griseo, elongate ; venis longitudinalibus albidis 

 nigro interruptis ; venulis transversalibus costalibus, gradatis, post- 

 costalibus nonnullisque incrassatis ad basin omnino nigris, reliquis 

 plerumque nigro terminatis ; venis venulisque breviter nigro hirsutis. 

 Pedes pallide grisei ; tibiis basi nitente nigro annulatis ; unguiculis 

 rufo-testaceis, basi dilatatis. ( 5 ). Long. corp. 1" ; exp. alar. 2" 3'". 



Hab. Natalia. In collect, auctoris. 



Antennce shorter than the wings, thick, deep black, with the two basal 

 joints pale grey. Head small, pale olivaceous grey ; the eyes (in death) 

 concolorous ; labrum and palpi shining reddish brown. Prothorax 

 scarcely as long as broad, slightly notched on each side in front and 

 with the anterior angles acute; pale olivaceous grey, the anterior 

 angles slightly reddish, two short black lines on each side. Meso- and 

 metathorax olivaceous grey varied with yellow in the middle. Wings 

 elongate, whitish hyaline ; pterostigmatical space elongate, olivaceous, 

 the longitudinal veins whitish, with strong black interruptions; the 

 whole of the costal veinlets (excepting those towards the apex), the 

 veinlets in the subcostal space, the gradate series, and four or five very 

 strong ones at and below the cubital cells totally black, those between 

 the radius and its sector, and those between the cubitus anticus and 

 . posticus, black at each end, the marginal forks blackish at their bases, 

 the rest of the veinlets whitish ; all the veins and veinlets with short 

 black liairs;, each hair springing from a black point ; the costa grey. 



