BRUES: PARASITIC HYMENOPTERA. 



93 



body; basal joints elongate; those near the middle quadrate and those toward 



the apex moniliform; the tips not preserved, but there were probably a few 



more than 20 joints. Thorax and abdomen 



seen in ventral view, the former ovate, -c- .. 



distinctly less than two times as long as wide. 



Abdomen elongate ovate, with a stout, short 



petiole, the second segment more than four 



times as long as those following it combined. 



Wings not preserved. Legs slender. 



Type.— No. 2336, M. C. Z., Floris- 

 sant, Col. (No. 6620, S. H. Scudder 

 Coll.). 



One specimen, not showing many diag- 

 nostic characters, but without doubt a 

 member of the Euphorinae and the first 

 fossil member of the subfamily to be 

 described. It resembles a belytid super- 

 ficially, but there are too many joints to the antennae. This same 

 resemblance is seen in recent forms, although it is of course entirely 

 superficial. 



Fig. 75. — Euphorus indurescens, 

 sp. nov. Type. 



Macrocentrinae. 



I have found no representatives of this group in the Florissant mate- 

 rial, but Macrocentrus has been recorded from Baltic Amber by 

 Brischke ('86). 



Helconinae. 



Two genera, Diospilus and Dyscoletes occur at Florissant, and are 

 the first members of this subfamily to be found in the fossil state. 



Diospilus repertus, sp. nov. (Fig. 76.) 



Female. Length 4.75 mm. Black, the abdomen brown or piceous, legs 

 ferruginous or yellowish brown. Antennae a little shorter than the body, 

 about 30-jointed, slender and of even thickness. Surface of head and thorax 

 smooth and shining; metathorax distinctly areolated and more or less dis- 

 tinctly granulated on the surface. Abdomen stout, swollen, about as long 

 as the head and thorax together; second and third segments subequal, the 

 longest ; others 'about two-thirds as long and subequal among themselves. 



