254 BLENNOCAMPA NANA. 



hairless, fuscous, pale brown, or even white to the 

 middle of the face, below which the colour is white ; 

 the mouth is fuscous. The entire body is green ; over 

 the feet the skin is much wrinkled ; the junction of 

 the segments is white. The legs are green with darker 

 claws ; the abdominal legs are greenish- white ; the anal 

 ones are well-developed and on walking are slightly 

 raised. Those in front of them are not well developed, 

 or they are hid by the overhanging folds of the body. 

 On the back are short spiny hairs. Lengths 4 lines. 

 They are found in June and July, pupate in the earth, 

 and appear the following May and June. 



This is one of the commonest species in the genus. 

 I have seen specimens from all parts of the country. 



Continental distribution : Sweden, Germany, Hol- 

 land, France, Switzerland, Tyrol, Hungary, Russia. 



Abdomen black, legs testaceous or white. Antennae longish, 

 filiform, the joints of nearly equal thickness from the third ; 

 wings with the first transverse cubital nervure very faint ; the 

 transverse radial nervure interstitial (betuleti) or nearly so 

 (nana) ; the median nervure received in middle of cellule (betu- 

 leti) or nearer the base (nana). Claws bifid. Pentagonal area 

 distinct. Eyes greenish (Species 21 and 22). 



In the absence of the 1st tr. cubital nervure, or at least in 

 having it very faint, this section approaches Fenusa, as it does 

 also in the distinct pentagonal area. In colour, too, the resem- 

 blance is very great ; betuleti, for example, is identical with 

 Fenusa betulce ; and nana approaches F. pygmcea. 



21. BLENNOCAMPA NANA. 



Tenthredo nana, Klug, Berl. Mag., viii, p. 72 ; Htg., Blattw., 

 266, 1; Thorns., Opusc., 285, 24; 

 Hym. Scand., i, 212, 11 ; Cam., Fauna, 

 25, 2; Andre, Species, i, 302; Cat., 

 39 * 28. 



Oblong, black, shining, glabrous. Antennae filiform longer than 

 the abdomen, the third joint much longer than the fourth. Tegulse, 

 pronotum at the base, knees, tibiae and tarsi, clear white. Saw project- 

 ing, semi-curved ; apex of abdomen truncated ; blotch oblong. Wings 

 hyaline, with a large fuscous blotch in the middle of the anterior; 

 stigma large, fuscous ; stigma pale ; tr. radial nervure received a little 

 in front of cubital. 



Length 2 2 lines. 



