418 CLASS vm. 



serrated. To this DE HAAN gave the generic name Sialis. That genus 

 (Sialis DE H. not FABR.) is the same as Neuromus RAMBUR, Neuropt. 

 p. 441, which ought not to be separated from Chauliodes; the species which 

 I have indicated is Neur. ruficottis of RAMBUR. Another genus of 

 RAMBUR, Dilar, unknown to me, with pectinate antennae in males, appears 

 to be related, but has a greater affinity, as I conjecture from the descrip- 

 tion and figure, with the Hemerobii. 



Hemerobius L., FABR. (exclusive of species). Palps with last 

 joint thicker, elongo-ovate. Prothorax small, shorter than the 

 other segments of thorax. Wings ample, lanceolate, with costal 

 border broad. Antennas filiform or setaceous, mostly long. Tarsi 

 with two claws, and intermediate pulvillus. 



a) Ocelli none. 



Sub-genera : Hemerobius LEACH, Drepanopteryx LEACH, Megalo- 

 mus RAMB., Sisyra BURM., Chrysopa LEACH, Polystcechotes BURM. 



Nymphes LEACH. (With antennae short, wings narrow, elongate ; 

 habit of lion-ant.) 



Sp. Hemerobius perla L., (Chrysopa perla LEACH,) 1 ROES. Ins. in. Tab. 21, 

 fig. 5, Cuv. R. Ani. 3d. ill., Ins. PI. 103, fig. 3; Hemerobius chrysops L. 

 (Chrysopa reticulata), R(ESEL, Ins. in. Tab. 21, fig. 4 ; comp. N. SLABBER, 

 Verh. der Haarl. Maatschappij, x. 2, bl. 387 412, with fig. 



These broad-winged insects are provided with eyes shining with gold 

 during life ; the delicately latticed wings, as transparent as fine gauze, 

 present the colours of the rainbow. The larva lives on plants, and 

 resembles that of the lion-ant ; it feeds on leaf-lice, and is covered with a 

 mealy substance, to which the cast-off skins of the leaf-lice adhere, so that 

 the true form of the insect is often quite irrecognisable ; the small, oval, 

 white eggs are seated on long thin pedicles upon twigs and leaves. 



6) Ocelli three. 

 'us LATR. 



Nemoptera LATE., Nematoptera BURM. (species of Panorpa L., 

 FABR.) Head produced into a rostrum. Maxillary palps shorter 

 than maxillae, filiform, more slender towards the apex, with three 

 small terminal joints ; external lobe of maxillae subulate, biarticu- 



1 G. T. SCHNEIDER, Symbolce ad Monographiam generis Chrysopa; LEACH, Vratis- 

 lavise, 1851. 8vo. c. tab. pictis. 



W. F. EVANS, Monograph of the British Species of the genus Chrysops, Transact 

 of the Entomol. Soc. of London. 1847, Vol. v. p. 71, PI. 9, 10. 



