of new species of Tenthredinida;, ^'c. 383 



Thorax : the posterior margin of the prothorax pale yellow, 

 narrowly so in the middle ; the tegulfe yellow ; a trans- 

 verse narrow line on each side of the scuteilum, two minute 

 spots on each side of the post-scutellum, and the hinder 

 margin of metathorax, narrowly yellowish-white ; wings 

 hyaline and iridescent, the nervnres fuscous, the costal one 

 pale ferruginous ; the posterior coxte black towards their 

 base, with a white spot above them. Abdomen smooth 

 and shining, with the apical margins of the two basal seg- 

 ments narrowly whitish. 

 Hab. — North Japan. 



5. Tenthredo volatilis. 



Female. — Length 4g lines. Black, with the four apical 

 joints of the posterior tarsi white ; the apex of the claw- 

 joint shining black ; the labrum white. The scuteilum 

 white, wings hyaline, the nervures and stigma black ; the 

 anterior tibiae at their apex in front, a large ovate spot on 

 the posterior coxse at their base outside, and the posterior 

 trochanters, Avhite. 



Hab. — Hiogo. 



Genus Dolerus, Leach. 



1. Dolerus ephippiatus. 



Female. — Length 5^ lines. Head and thorax black, 

 the pro- and meso-thorax ferruginous ; abdomen shining 

 black, with an obscure green tinge ; the insect has a thin 

 hoary pubescence, most observable on the head, thorax 

 and towards the apex of the abdomen ; the middle of the 

 pectus black; wings clear hyaline; the nervures and 

 stigma black ; the head rugose. 



Hab. — Hakodadi; Hiogo. 



2. Dolerus fuscipennis. 



Female.— Length 3f lines. Black, and having a thin, 

 short, hoary pubescence ; two white minute spots behind the 

 scuteilum ; the wings fuscous ; the anterior tibiae in front, 

 the posterior trochanters, and the tibia? outside, white. 

 Abdomen: the fourth and fifth segments have a short 

 white line at their lateral margins. 



i7a6.— Hiogo. 



