rs CONDUCTUS. Ill 



It is also a native of Sweden, Tyrol, Germany, and 

 France. 



42. NEMATUS CONDUCTUS. 

 Vol. I, PL IV, fig. 8, lar. ; Vol. II, PI. XX, fig. 2, Saw. 



Nematus conductus, Ruthe, Stett. Ent. Zeit., 1859, p. 306 ; 



Cam., Fauna, 35, 26 ; Andre, 

 Species, 175, 235; Cat., 19,* 

 118. 



graminis, Cam., E. M. M., x, 221; Br. and Zad., 



Schr. Ges. Konig., xxiv, 155, 

 139. 



obductus, var. Thorns., Hym. Scand., i, 114, 39. 



Antennae black, finely pubescent, as long as the body. Head black, 

 pubescent, and finely punctured above and in front ; labrum blackish ; 

 palpi fuscous at the base, remainder whitish-green. Thorax black, 

 shining, minutely punctured above, and covered with white down on 

 the pleurae and sternum ; tegulae white, pronotum thinly edged with 

 white. Legs covered with white pubescence, coxae white, the anterior 

 black at the base ; four anterior femora sordid white, irregularly en- 

 circled with black from near the extreme base to the middle, the second 

 pair with the black extending nearer to the apex than in the first pair ; 

 posterior black, white at the base ; the tibiae white, except the posterior 

 which are black at the apex ; the anterior tarsi are slightly fuscous at 

 the joints ; posterior quite black. Wings hyaline, iridescent, the costa 

 whitish, stigma fuscous, the nervures of the same colour, but paler at 

 the base. Abdomen whitish-green, with the dorsal surface black except 

 at the apex. 



The $ has the antennae longer and more pilose, the tegulae and pro- 

 notum black, the apical half of the posterior tibiae of the same colour ; 

 the anal lobes narrowed at the apex, pale testaceous, and gaping consi- 

 derably. 



Length 2f lines. 



In some examples the anal segments are fuscous, 

 and the quantity of black on the legs is subject to 

 slight variations. 



Larva. Head green, flat in front, and with a fuscous 

 tinge, a darker line down the centre, eye spots black, 

 the mouth brownish-black. The body is cylindrical, 

 entirely grass-green, the sides slightly overhanging the 

 legs, and the entire skin is covered with longish hairs. 

 The legs are glassy white, claws blackish. 



The larvae feed on various low grasses (Poa, Festuca). 

 They are rather irritable, and when touched lash the 



