FOSSIL PARASITIC HYMENOPTERA FROM BALTIC AMBER. 



335 



flattened, as long as the four following joints together; pedicel con- 

 tracted, as long as the broader first joint of the flagellum which is also 

 narrowed at its base; second to sixth flagellar joints subequal, about 

 quadrate and shorter than the first; joints beyond these of about the 

 same length, but more slender. Surface of head punctate closely on 

 the vertex, but becoming entirely smooth below the ocelli, except for a 

 few very sparse delicate punctures. Ocelli in a triangle, the lateral 

 ones as far from each other as 

 from the eye-margin. Eyes over 

 twice as high as broad. Pro- 

 thorax above densely punctate, 

 the median line complete; pos- 

 terior edge strongly concave, the 

 humeri produced into finger-like 

 processes ; propleurse roughly 

 shagreened below. Presternum 

 with a few sparse punctures, 

 very long, the coxse being far 

 removed from the head. Meso- 

 notum two-thirds as long as the 

 prothorax and one-half broader 

 than long; in front densely 

 punctured, apically with larger, 

 more scattered punctures ; inner 

 pair of furrows the deepest, 

 placed far apart, and suddenly 

 curved outwards at the anterior 

 margin; external pair of fur- 

 rows straight, close to the sides 

 of the mesonotum. Scutellum 

 twice as wide as long, smooth 

 and polished, without fovea? 

 at base. Propodeum medially 

 above with a carina, on each 

 side of which it is smooth and polished ; posterior surface rounded 

 off above, not sharply declivous; pleurae with a carina above, their 

 upper half reticulate, and their lower half in great part smooth 

 and polished. Mesopleura elongated, polished, with large scat- 

 tered punctures, abdomen rather short; second, third, and fourth 

 segments of equal length, following ones not exserted beyond the 

 fourth. Legs moderately thickened; anterior femora obclavate, 



Figure 1. Palceobethylus longicollis 

 sp. nov. cf. 



