FOSSIL PARASITIC HYMENOPTERA FROM BALTIC AMBER. .331 



forward nearly to the furrows. Scutellum narrow, convex. Pro- 

 podeum rugose and, as well as can be seen, irregularly areolated. Pro- 

 and mesopleurae rugulose-reticulate, except the upper part of the meso- 

 pleura which is smooth. Abdomen subsessile, as long as the thorax; 

 first segment of the same length, but much narrower than the second 

 which is nearly twice as broad as long; third segment one-third shorter 

 than the second, with an indistinct suture at the base; fourth as long 

 as the third. Ovipositor as long as the body. Legs rather slender; 

 spurs of four posterior tibiae short. Wings probably entirely hyaline, 

 stigma oval, distinctly broader than the length of the first section of 

 the radius which issues a little beyond the middle of the stigma and is 

 one-fourth as long as the nearly straight second to which it is almost 

 perpendicular; first discoidal cell barely sessile, with an obsolete 

 petiole above; submedian cell distinctly longer than the median; 

 second discoidal cell open at apex; recurrent nervure received at the 

 apical fourth of the first cubital cell, parallel with and one-fourth 

 shorter than the transverse cubitus. 



Male: Differs from the female by its somewhat more slender form, 

 and longer antennae. These are nearly a fourth longer than the body 

 with the joints more elongate, the shortest ones being nearly twice as 

 long as thick; basal joints of flagellum of about the same proportion- 

 ate length as in the female. 



Described from two specimens, male and female. Both are without 

 number. 



The species is here referred to Blacus since it does not agree in 

 number of antennal joints with either Blacus s. str. or Ganychorus 

 having considerably more than either of these genera. In the sub- 

 petiolate or subsessile form of the first discoidal cell it approaches 

 Pygostolus and would on this account appear to be more generalized 

 than any known recent species of the tribe Blacini. 



Taphseus prsecox sp. now 



cf . Length 4 mm. "Wings strongly tinged with brown, probably 

 infuscated in life. Head broadly transverse, about three times as wide 

 as thick. Ocelli large, in a small triangle, well removed from the 

 occiput. Head sharply and distinctly margined behind, the occiput 

 much depressed medially behind the ocelli. Antennae 24-jointed, as 

 long as the body; scape as long as the first flagellar joint; pedicel 

 small, rounded; first flagellar joint the longest, four times as long as 



