FOSSIL PARASITIC HYMENOPTERA FROM BALTIC AMBER. 333 



the middle to near the tip; first joint much lengthened, as long as the 

 width of the mesonotum; second to fifth joints each but little more 

 than half as long as the first; following becoming shorter and thicker, 

 till at the apical three-fourths they are quadrate from whence they 

 remain of the same shape but grow smaller to the pointed apex of the 

 antenna. Head very strongly contracted behind the eyes; margined 

 behind, its surface entirely smooth above and behind. Face very 

 much narrowed below to the clypeus which is oval, higher than broad, 

 very convex, and separated from the face by a deep suture. Eyes 

 ellipsoidal, very convex, nearly twice as long as broad; malar space 

 short, shagreened. Maxillary palpi rather short, composed of four 

 nearly equal joints. Mesonotum much elongated, strongly narrowed 

 in front, with a distinct, raised margin around the sides and a deep, 

 broad, foveate depression at the base of the scutellum; its surface 

 shining, faintly punctulate. Scutellum convex, strongly carinate 

 basally on each side of the basal depression. Propodeum gradually 

 declivous from the base, completely and very distinctly areolated. 

 Pleura? more or less smooth, the mesopleura quite strongly convex 

 medially; separated behind by a crenulate furrow from the short 

 metapleural piece. Coxa? smooth, faintly punctate. Abdomen with 

 a long petiole, claviform; fully twice as long as the head and thorax 

 together. First segment nearly as long as the thorax, long stalk- 

 like and but little widened toward the apex; its spiracles placed a 

 short distance before its middle in a lateral carina which extends the 

 entire length of the segment. Second segment half as long as the 

 first, nearly twice as long as wide at the tip; third, fourth and fifth 

 about equal, each one-third shorter than the second ; following scarcely 

 protruding. Wings nearly attaining the tip of the abdomen, appar- 

 ently hyaline. Stigma narrowly ovate, the radius issuing from its 

 middle, radial cell ending considerably before the wing-tip; first sec- 

 tion of the radius one-third as long as the second; areolet rhombic, 

 very large, the two sections of the radius forming straight lines with 

 its two upper sides; median and submedian cells of equal length; 

 cubito-discoidal cell as long as the greatest diagonal of the radial cell, 

 the cubito-discoidal vein sharply bent, with a trace of a stump of a 

 vein at this point. Legs slender, especially the anterior pair. 



Two specimens. Type without number; para type bearing the 

 number K7554. 



On account of the carina? on the first segment of the abdomen, this 

 species is better referred to Astiphromma than to Mcsochorus although 

 the structure of the tarsal claws is not to be seen. 



