202. 

 HEMEROBIUS FIMBRIATUS. 



Order Neuroptera. Fam. Hemerobiadae Leach. 

 Hemerobini Lat. 



Type of the Genus Hemerobius hirtus Linn. 



Hemerobius Linn., Geoff., DeGeer, Fab., Oliv., Lat., Leach, Stew., 

 Turt., Sam. 



AntenncE inserted between the eyes, on the crown of the head, 

 moniliform, pubescent, nearly as long as the body, composed of 

 numerous obovate joints, basal joint the largest, 2nd larger than 

 the remainder which decrease in length to the apex, where they 

 become transverse (fig. 1). 

 Trophi membranous. 



Labrum rather broader than long, angles rounded, slightly ci- 

 liated (2). 



Mandibles small, subtrigonate, bent acute, one denticulated 

 below the centre, the other angulated at the middle (3). 

 Maxilla terminated by 2 lobes, nearly equal in size, very pu- 

 bescent at the apex, the external one articulated, extending 

 beyond the internal one, which is horny at the margin and apex. 

 Palpi rather long, 5 -jointed, basal joint robust, 2nd short, 3rd 

 and 4th longer of nearly equal length, 5th the longest, subfusi- 

 form, thickened externally, the inner edge thin (4). 

 Mentum dilated at the base, rounded anteriorly. Labium fleshy, 

 rather long, rounded and pubescent. Palpi nearly as large as 

 the maxillary, arising from scapes, 3-jointed, basal joint not 

 short, 3rd nearly as long as the 2 first, subfusiform, thickened 

 on the outer, membranous on the inner side (5). 

 Head short, transverse. Eyes small, lateral, prominent. Ocelli none. 

 Thorax not broader than the head, the prothorax sometimes narrower. 

 Abdomen slender. Wings 4, vertj much deflexed when at rest, longer 

 than the abdomen, pubescent, the nervures very numerous especially 

 in the superior wings and producing hairs. Legs slender. Tibiae 

 simple. Tarsi 5 -jointed, basal joint the longest, 4th the shortest. 

 Claws minute, simple. Pulvilli small (8, afore leg). 



FlMBRIATUS Nob. 



Piceous, pilose. Antennae with the 1st and 2nd joints dull 

 ochreous. Thorax with an ochraceous line down the middle and 

 a spot on each side of the same colour, mesothorax variegated 

 with ochre : the base of the abdomen subferruginous. Wings 

 tinged with ochre, iridescent, ciliated: superior spotted with 

 fuscous, the nervures spotted with brown ; inferior with an in- 

 terrupted fuscous fimbria, across which the nervures are dark 

 brown, as well as upon a narrow space of the disc. Legs dull 

 ochre, thighs inclining to piceous, the posterior as well as the 

 base of their tibiae piceous ; apex of tarsi piceous also. 

 In the Cabinets of the British Museum and Mr. Dale. 



