70 NEMATUS AMBIGUUS. 



" Britain, J. F. Stephens " ; Kirby, I.e. Unknown 

 to me. 



Continental distribution : Pyrenees, Italy. 



Obs. Brischke and Zaddach (Schr. Ges. Konig., xxiv, p. 126) 

 regard N. funerulus as identical with N. laricis, Htg., (Blattw., 203, 

 35). Not having seen the specimen in the British Museum recorded 

 by Mr. Kirby I am scarcely in a position to offer an opinion on the 

 matter; but, judging by the description given of funerulus, laricis 

 seems to differ from it in having the pronotum edged with pale testa- 

 ceous, the apex of abdomen more or less of the same colour, and the 

 stigma clearer, being reddish-yellow or clear brown. 



III. THE GROUP OF AMBIGUUS. 



Black ; mouth, pronotum, apex and ventral surface of 

 abdomen, pale or testaceous. Antennae shorter than 

 the body, black, sometimes pale beneath. The eyes are 

 usually more or less bordered with testaceous ; the meso- 

 notum is finely punctured, the vertex is more roughly 

 punctured. Clypeus truncated at the apex. Wings having 

 a white, testaceous, or fuscous stigma ; the first trans- 

 verse cubital nervure may be absent or present. Abdo- 

 men compressed at the sides towards the apex; above 

 distinctly carinated. 



The group has considerable affinity with Group III, 

 but, inter alia, differs from it in the punctured meso- 

 notum and in the much greater extension of the white, 

 or testaceous colour on the thorax and abdomen, as 

 well as in the form of the latter. Most of the species 

 are attached to Conifer w. 



14. NEMATUS AMBIGUUS. 

 PL IV, fig. 3, ? ; PL XVI, fig. 5, Saw. 



Tenthredo ambigua, Fall., Acta Holm., 1808, 112, 50. 



Nematus furvescens, Cam., P. N. H., Glas., ii, 308 (1877) ; 



Fauna, 33, 15 ; Andre, Species, 

 i, 139 ; Cat., 26* 215. 



parvus, Htg., Blattw., 208, 43; Br. and Zad., Schr. 

 Ges. Konig., xxiv, 125, 99. 



