238 BLENNOOAMPA GENICULATA. 



This species is closely allied to nigrita, but is smaller, 

 tlie wings are clearer, and not much darker at the 

 base than at the apex ; there is no horny point in the 

 second cubital cellule ; the first cubital nervure is 

 more distinct; the frontal and antennal sutures are 

 deeper ; the head, legs and sides of abdomen more 

 densely pilose, and generally the body is more shining. 

 In the $ the antennae are shorter than in the same 

 sex in nigrita, the joints are more distinctly separated 

 and not so flattened, the third joint is decidedly longer 

 than the fourth, while in nigrita they are equal, the 

 fifth being if anything longer than the fourth, while 

 the mesonotum in micans is densely pubescent, and 

 scarcely so in nigrita ; also in the latter the knees only 

 are testaceous ; in micans the whole of the anterior 

 tibiae in front are testaceous. 



Seemingly rare. Dairy (Sharp), Manchester (Chap- 

 pell). 



Continental distribution: Germany, Holland, France, 

 Tyrol. 



Tegulse, pronotum and posterior legs except at the knees, black. 

 Antennae longer than abdomen, filiform. Wings smoky, third 

 cubital cellule longer than second ; transverse radial nervure 

 interstitial. Basal nervure received a little behind the middle 

 of cellule. Clypeus incised (Species 6). 



6. BLENNOCAMPA GENICULATA. 

 PI. VII, fig. 3, 3a, 3&, Larva. 



Tenthredo geniculata, Big., Blattw., 274, 31 ; Evers., Bull. Mosc., 



xx, 31, 9. 



longicornis, Htg., Blattw., 275, 32 ; Evers., I.e., 31, 10. 

 Monophadnus geniculatus, Kalt., Pfl., 237, 242. 

 Blennocampa geniculata, Thorns., Op., 282, 11 ; Hym. Sc., i, 



218, 21; Cam., Fauna, 26, 13; 



Andre, Species, i, 308 ; Cat., 37,* 6. 



Deep black, shining ; knees, tibiae in front and base of hinder tibiae, 

 slightly white. Antenna) filiform, thin, slightly tapering towards the 

 apex ; the third joint is scarcely longer than the fourth. Wings almost 

 fuscous ; the radial nervure nearly interstitial ; the nervures, costa and 

 stigma are black. 



