OENUS BIOEHIZA. 117 



Torymus flavipes, Wlk. ; T. amoenus ; Gallimome rubri- 

 cejps, Latr., according to Brischke, who also gives 

 Limneria exareolata as a parasite. 



Sweden, the Netherlands, Switzerland, Germany, 

 Austria. 



Genus Bioehiza. 



Biorhiza, Westwood, Int.. ii, 56, App. ; Mayr, Genera, 31. 



Apophyllus, Hartig, Germs. Zeit., ii, 185. 



Teras, Hartig, 1. c. 



Dryoteras, Foerster, Yerh. z.-b. ges. Wien, 1869, 331. 



Agamic. — Apterous. Parapsidal furrows entire, acute ; a blunt keel 

 between the antennae ; bead dilated bebind tbe eyes ; ventral spine one 

 to one and a balf times as long as thick. A transverse furrow at the 

 base of the scutellum. Antennae 14-jointed ; the third joint longer 

 than the fourth. Mesothorax contracted in the middle. Abdomen 

 large, somewhat compressed, longer than the head and thorax united. 

 Cheeks hardly half the length of the eyes. Metanotal keels above 

 parallel, then diverging, and converging again at the apex. Claws 

 simple. On the mesonotum only the space between the furrows is 

 smooth, the rest being aciculate. 



Sexual Form. — The $ agrees very closely with the agamic, but is 

 usually winged ; the wings having an open radial cellule, the radial 

 cellule moderately long ; the first abscissa of the radius curved ; the 

 areolet well defined. The antennae are 14-jointed; the third joint 

 longer than the fourth. Mesonotum smooth, impunctate all over; the 

 mesonotum not contracted in the middle. The abdomen as long as 

 the head and thorax. At the base of the scutellum are two distinctly 

 separated foveae. 



The $ has the antennae 16-jointed, the third joint curved ; the head 

 not dilated behind the eyes. 



It is noteworthy that the sexual female may have 

 the wings rudimentary or wanting ; in which case it 

 approximates in the shape of the thorax to the agamic. 

 The <? so far as I know is never apterous nor with 

 rudimentary wings. The colour of both forms is 

 yellowish. There is only one European species, and 

 one is known from North America. 



