NEMATUS ZETTERSTEDTI. 135 



head and thorax, and only black at the base, and the 

 wings fuscous. 



The larva was first described by Brischke and 

 Zaddach. It is pale green with two white dorsal 

 lines ; a blackish line goes round the forehead from 

 the eyes, and another line goes down the face in the 

 centre. The claws are blackish. I found these larvae 

 in the autumn, and they spun the cocoon in the earth. 

 They feed on Trifolium pratense, the leaves of which 

 they devour along the sides, or eat out roundish holes 

 in the centre. 



The flies appear during June and July. They are 

 very commonly distributed. Scotch localities are : 

 Clydesdale, Dumfriesshire, Moffat, Oban, Kin tail, 

 Sutherlandshire, Kingussie, Braemar, Perth, Rannoch, 

 Berwickshire. English: Newcastle, Manchester, York- 

 shire, Norwich, London District, Exeter, Glanville's 

 Wootton, Gloucester, Worcester. 



Its Continental distribution is very general : Scandi- 

 navia, Germany, Holland, France, Corsica (Marshall), 

 Italy, Russia. 



Obs. Thomson considers myosotidis as identical with the Tenthredo 

 papillosa, Retz., De Geer, a statement sufficiently contradicted by the 

 totally different habits of the two species. The N. myosotidis of 

 Brischke is N. pavidus, Lep. 



61. NEMATUS ZETTERSTEDTI. 

 PL XXII, fig. 1, Saw. 



Ntmatus Zetterstedti, Dbin., Clavis. fig. 5 ; Thorns.. Hym. Scand., 



i, 147 ; Cam., Fauna, 36, 32. 



miniatus, Htg., Blattw., 189, 12; Opusc., 635, 47; 

 Andre, Species, i, 196 ; Cat., 14,* 

 26 ; Br. and Zad., Schr. Ges. 

 Konig., 291, Taf. 7, fig. 13. 



Antennae long, thin, black, brownish beneath, the fourth joint longer 

 than the third. Head narrower than the thorax, sutures deep and 

 well marked, the pentagonal area very large and distinct ; antennal 

 fovea very deep, front projecting; clypeus very deeply notched, the 

 labrum hairy, subtransverse ; black, covered with dense pile, the 

 portion below the antennae, and a ring surrounding the eyes (except 

 the lower posterior part) reddish ; the palpi are testaceous. Thorax 

 black, smooth, half shining, slightly pubescent; pronotum reddish, 



