FOSSIL PARASITIC HYMENOPTERA FROM BALTIC AMBER. 345 



faintly punctulate on the cheeks. Antennae 13-jointed, the second to 

 fifth flagellar joints dentate below, the teeth small, but sharply indi- 

 cated; scape thickened toward the apex, about one-half longer than 

 wide; pedicel small, very short, rounded; first joint of flagellum a 

 little over twice as long as thick, cylindrical; second joint three- 

 fourths as long, following to the apex of about equal length, each 

 nearly twice as long as thick; last joint thicker, one-half longer and 

 acute at the apex. Mesonotum elongate, with indications of parap- 

 sidal depressions. Scutellum but little convex medially. Propodeum 

 very gradually rounded off behind, and not strongly decumbent; 

 above irregularly rugose-reticulate, but without indications of a longi- 

 tudinal arrangement, except possibly near the median line which is 

 very much obscured in the type. Pleura? not sculptured except on 

 the metathorax; mesopleura with a horizontal impression extending 

 for nearly its entire length and a punctate frenum posteriorly. Abdo- 

 men as long as the thorax, its second segment longer than all the fol- 

 lowing taken together, striate at its extreme base. Legs slightly, 

 but quite distinctly thickened; inner spur of hind tibiae barely one- 

 half the length of the metatarsus. Wings with an oval stigma which 

 is more than twice as long as broad; radius originating at the apical 

 third of the stigma; radial cell well-developed; fully as long on the 

 costa as the width of the stigma; its costal side twice as long as the 

 first section of the radius; discoidal veins not well indicated except 

 the upper part of the discocubital vein. 



One specimen, No. 12,072. 



This species resembles very closely some of the living members 

 of this cosmopolitan genus. The radial cell is, however, unusually 

 large, although not unparalleled among recent species. 



Family CALLIMOMIDjE. 



Monodontomerus primsevus sp. nov. 



9 . Length 4 mm. Ovipositor exserted to nearly the length 

 of the abdomen, its tip removed, but the sheaths are a little shorter 

 than the part preserved, being about three-fourths as long as the 

 abdomen. Head smooth below, above on the front slightly sha- 

 greened. Antennae 13-jointed, scape, pedicel, one ring joint, seven 

 funicle joints and a 3-jointed club. Scape inserted well below the 

 middle of the eye and reaching as far as the anterior ocellus; pedicel 



