TENTHREDO HANDIBULARIS. 89 



lower part are of a clearer green ; the head is black, 

 with the face and sides green. At the last moult the 

 whole body becomes of a pale vitreous green. As usual 

 it pupates in the earth. 



Atra does not seem to be very common. I have 

 three Scotch examples, one from Rannoch, one from 

 Braemar, and another from Altnaharra, Sutherland- 

 shire. In England it occurs at Worcester, Devonshire, 

 and Stephens mentions Darenth and Coombe Woods 

 as habitats, while I have a specimen from the South 

 of Ireland. 



Its continental distribution is very general, being 

 found in Scandinavia, Germany, Holland, France, 

 Switzerland, Italy, and Russia. 



Obs There are certain species related to atra not yet found in 

 Britain which may be here mentioned, the more especially as some of 

 them are perhaps only varieties of atra or dispar. T. procera, Kl., is a 

 good species. It has the same coloration as dispar, that is to say, with 

 white, or rather red, on pronotum and over posterior coxae ; but it may 

 be at once distinguished by its greater size, longer wings, and much 

 longer and thinner antennae. T. rufipes, Kl., is probably only a variety 

 of dispar, with the posterior tibiae and tarsi reddish. T. caligaior 

 (Klug), Evers. (Bull. Mosc., xx, 47, 14), appears only to differ from atra 

 in its larger size, about a line over the normal size of atra. 



It may be added that all the forms have frequently 

 the mouth spotted with brown or black, while the 

 amount of black on the base of the legs and tarsi and 

 tibiae varies a good deal. 



14. TENTHKEDO MANDIBULAEIS. 



Tenthredo mandibularis, Pz., F. G-., xcviii, fig. 9 ; Fab., S. P., 



34, 27 ; Klug, Berl. Mag., viii, 

 208, 158 ; Lep., Mon., 112, 325 ; 

 Htg., Blattw., 305, 22 ; Andre, 

 Species, i, 440 ; Cat., 55,* 3. 



Allantus mandibularis , Ste., 111., vii, 69, 35. 



Black ; mandibles, and a spot over the posterior coxae white ; four 

 anterior legs red, except at base ; half shining, pleurae opaque, dis- 

 tinctly punctured ; antennae longer than the abdomen, the middle joints 

 thickened. Wings hyaline, very slightly suffused with yellow ; costa 

 pale reddish ; stigma black. Posterior spurs pale. ? and $ . 



Length 6 lines. 



