and species of TcntlirccUuidce and Siricidce. 461 



from Japan appears to be A. spinarum, differing only from 

 the Em'opean form in having the black on the thorax 

 broadly divided in the middle. 



Monophadnus rufus. 



$ and $. Rufous; antennae, from two basal joints, 

 apex of mesonotum with scutellum, metanotum, and 

 terebra at apex, black. Antennas longish, 3rd joint a 

 very little longer than 4th. Wings blackish, paler at 

 apex ; costa and stigma deep black. Marginal nervure 

 received past middle of 3rd submarginal cellule ; 2nd 

 submarginal cellule Avith a black dot. 



Aberration b. Meso- and meta-notum, base of abdo- 

 men, breast and pleurae, black. Antennse with the four 

 basal joints pale-reddish. 



Length 7 lines. 



Hah. — North China. 



Monophadnus ccerulescens. 



$ . Dark-blue, half shining, pubescent. Antennae shorter 

 than body, thick, a little hairy ; 3rd joint nearly double 

 the length of 4th. Cenchri large, white. Wings shortish, 

 hyaline; costa and stigma black; a slight cloud below the 

 stigma. Marginal nervure received a little past the middle 

 of third submarginal cellule. 



Length 7 lines. 



Hob. — Nepaul. 



Monophadnus bengalensis. 



^. Fades of SiTenthredo. Blue-black. Feet white ; coxas 

 at base, apex of femora (especially posterior pair), apex 

 of posterior tibite and tarsi, black. Clypeus rounded, face 

 very hairy; 3rd joint of antennas much longer than 4th. 

 Terebra projecting. Wings subhyaline, darkened at apex, 

 marginal nervure received past middle of third submarginal 

 cellule ; posterior wings as in Eriocampa. Tegulte black. 



Length 7 lines. 



Hab. — Bengal. 



Anisoarthra, gen. nov. 



Antennge covered with long pressed hairs, with 3rd and 

 4th joints equal, a little dilated at apex; 5th a little longer 

 than 4th, also dilated at apex ; 6th nearly a fourth shorter 



