of new species of TenthredmidcE, ^c. 38 1 



white; the posterior trochanters and the base of the 

 tibiffi outside, white ; two minute white spots beneath the 

 scuteUuni; the wings fuscous, the nervures black, the 

 stigma white at the base. 

 Hab. — Hiogo. 



1 1 . Ma crop hi/ a Jla vipes. 



Female.— Length 4 lines. Black; the antenna, legs 

 and two basal segments of the abdomen pale yellow. 

 Head : the clypeus, mandibles and palpi pale ; the vertex 

 brown. Thorax : the scutellum and disk of the mesothorax 

 obscurely testaceous ; the tegula?, and a short line before 

 them, pale testaceous ; the wings hyaline and tinged with 

 yellow towards their base ; the nervures fuscous, the costal 

 nervure pale testaceous, the stigma black. Abdomen : 

 rather more than the basal half beneath pale testaceous. 



Hab. — Hiogo. 



Genus Tenthredo, Linn. 



1. Tenthredo erratica. 



Female. — Length 7^ lines. Reddish-yellow, with a spot 

 on the vertex, which encloses the ocelli, three spots on the 

 mesothorax and the four apical segments of the abdomen, 

 black. Head : the clypeus, labrum and mandibles i^ale 

 yellow, the tips of the latter black. Thorax : the sides 

 and also the pectus black ; the base of the anterior and 

 intermediate coxfe black ; a yelloAvish-wliite spot before 

 the posterior coxa3 ; a triangular black spot on the meso- 

 thorax anteriorly, and an oblong one on each side ; wings 

 flavo-hyaline, nervures fuscous ; the costal nervure and the 

 stigma yellow. The male has the antennae, beyond the 

 second joint, black. 



Hab. — Hakodadi ; Siberia. 



This species is, in my opinion, identical with one 

 received from Trans-Baikal and Angara, in Siberia ; it 

 closely resembles the Tenthredo flavicornis of Europe, 

 and will probably be considered a climatal variety by some 

 Hymenopterists. Thomson describes T. flavicornis as 

 having the posterior femora black; it may be so in 

 Sweden, but it is only a variety in Germany. 



