ORYSSUS ABIETINUS. 139 



iangular plate; hollowed in the centre above, the 

 iternal keel formed by this hollow, having the mus- 

 jles attached to it. The two other pieces of the ovi- 

 >ositor are formed as in Sirex, only they are finer and 

 inch longer, being nearly double as long as the abdo- 

 len. In repose they are not exserted. I am not 

 quite certain how they are kept in position in the 

 abdomen when retracted, not having a ? to dissect ; 

 but in one specimen the apex was apparently firmly 

 inserted into the basal abdominal segment. 



The c? has all the tarsi five-jointed, but the ? has 

 only three joints in the anterior ; the front tibiae have 

 only one spur. Claws simple. The four posterior 

 tibiae bear blunt irregular tubercles on the outer side. 



Genus OEYSSUS. 



Oryssus, Latr., Precis, p. Ill ; Klug, Mon., 3 ; Westw., Int., ii, 

 121. 



1. OEYSSUS ABIETINUS. 



SpJiex abietina, Scop., Ent. Cam., 296 (1763). 



vespertilio, Fab., E. S., ii, 129, 19 (1793) ; Klug, Mon., 7, 



pi. i, fs. 1-3. 

 Oryssus vespertilio, Htg., Blattw., 366. 



coronatus, Fab., E. S. Suppl., 218; Curt., B. E., x, 



pi. ccclx ; Thorns., Hym. Sc., i, 333. 



albopunctatus, Gimm., Bull. Mosc., ix, 434. 



Black ; the lower orbits of the eyes above the clypeus, the greater 

 part of the third, fourth, and fifth antennal joints beneath, the knees, 

 and the greater part of the outer side of tibiae, white. Tarsi reddish ; the 

 abdomen bright red from the second segment. 



Wings hyaline, the apex smoky, except the extreme tip and a broad 

 stripe at the end of the stigma, extending to the cubital nervure from 

 the stigma. Head and thorax and basal segment of abdomen coarsely 

 punctured. 



The <$ has a broad yellow mark on the apical segment above. 



Length 5 6 lines. 



Kare. Daren th Wood, Devonshire (Stephens). 



