TEXTHREDO MONILIATA. 85 



10. TENTHREDO MONILIATA. 



Tenthredo moniliata, Klug, Berl. Mag., viii, 205, 153; Htg., 

 Blattw., 306, 27 ; Evers., Bull. Mosc., 

 xx, 47, 15 ; Thorns., Hym. Scand., i, 

 275, 9; Andre, Species, i, 458; Cat., 

 55,* 10. 



Black ; clypeus, labrum, palpi, mandibles, a line on pronotum and a 

 mark over the posterior coxae yellowish-white, the three or four middle 

 segments of the abdomen and legs red; the coxae, trochanters, pos- 

 terior femora above, the apex of posterior tibiae and the greater part of 

 posterior tarsi, black ; tegulae reddish, or reddish-white. Wings hyaline, 

 costa and stigma fuscous. Abdomen long, cylindrical, a third longer 

 than head and thorax. $. 



Length 6 6 lines. 



This species shows considerable variation in the 

 size of the abdominal ring as well as in the quantity 

 of black on the femora. T. plebeja, KL, differs from 

 innniliata in having the legs entirely reddish. As it 

 has red tegulae I suspect it is only a variety of the 

 latter. T. trabeata, Kl., is readily known by having 

 the three middle abdominal segments red above and 

 yellow at the sides, while the anterior tibia3 are white 

 in front and the hinder pair wholly white, except a 

 narrow ring at base and apex. The femora are, for 

 the greater part, black. 



Thomson describes the of moniliata as being 

 similar to the ? , but this is, I think, doubtful. I 

 believe the $ of moniliata is T. poecila (Klug), Evers., 

 Bull. Mosc. xx, 48, 17. Eversmann describes moni- 

 li'it.a, ? , and poecila differs from it and agrees with 

 the c? of lachlaniana exactly in the same points in 

 which moniliata ? agrees with and differs from 

 lachlaniana ? ; that is to say, there is only one spot 

 over the hind coxae, and the mouth only is white. 

 Otherwise poecila differs from lachlaniana $ in having 

 only the front femora lined with black, and there is 

 only one yellow line on the pleurse. 



Seemingly rare. Taken by Mr. McLachlan at 

 Aberlady in June. 



