BLBNNOOAMP4 XHiRTTA. 235 



>. BLENNOOAMPA NTGRTTA. 



Tenthrcdo nigrita, Fab., S. P., 39, 47; Lcp., Mon., 81, 241; 



Fall., Acta Holm., 1807, 281, 8. 

 uiiji-n-iiun, Kl., Bcrl. Mag., viii, 65, 83; Htg., 



Blattw., 276, 35 ; Ratz., Forstins., 



iii, 132 (lav.) ; Kalt., 431. 

 RcJninlria brevicornis, Ste., 111., vii, 49, 18. 

 />'!> nocampa nigrita, Thorns., Opus., 281, 8; Hym. Sc., i, 209, 



6; Andre, Species, i, 307; Cat., 



37,* 2. 



Deep black, densely pilose; anterior knees and b;nal half of tibiae 

 whitish-testaceous. Antennae shorter than head and thorax, the joints 

 short and thick, closely united towards the apex ; the third joint a 

 little less than double the length of the fourth. Wings fuscous at base, 

 hyaline at apex ; nervures black ; basal half of stigina fuscous. 



The $ has the antennae as long as the abdomen ; the third and fourth 

 joints are about e<ju;il. 



Length 3:, 1 lines. 



The deep black, densely pilose body, with wings 

 fuscous at base only, serve to distinguish this species. 



The larva, according to Kaltenbach and Ratzburg, 

 causes damage to ash trees, upon the leaves of which 

 it feeds. It becomes mature at the end of June; 

 pupates in the earth, and appears in the perfect state 

 early next summer. 



Not a common species. Mr. Fletcher takes it at 

 Worcester, and it is, I believe, occasionally met with 

 in the London district. 



Continental distribution : Sweden, Germany, Holland, 

 France, Tyrol, Hungary. 



Black ; knees and anterior tibiae whitish-testaceous in front. 

 Head projecting behind the eyes, which have a longish suture 

 behind them. Eyes not reaching close to mandibles ; frontal 

 area and sutures indistinct. Third cubital cellule shorter than 

 second; transverse median nervure received close to middle of 

 cellule. Clypeus with a very slight emargination. Claws 

 simple. Sheath with a projecting point on its upper side 

 (Species 4). 



