OF NATIRAI. HISTORY. Tl'.l 



somewhat fuliginous : pleura with an oMicpio, ydlnw Vuw ovor 

 the posterior feet: tcrguui, first segment with a dull ferruginous- 

 yellow band at base and a subterniinul yellow one; on tlic middle 

 of the terguui on each side a transverse yellow spot ; a yi-llow bund 

 on the p<tsterior submargin of the penultimate Hegment ; an<l a 

 double [270] yellow spot at tip of the ultimate segment: oviduct 

 longer than the abdomen, reaching almost to tlie scutel : tarsi 

 and anterior tibiae ferruginous, the latter dusky on the middle : 

 intermediate tibiop and knees yellow, tinted with ferruginous be- 

 hind : posterior thighs dentated beneath, yellow at base and tip ; 

 tibiaj yellow before, somewhat ferruginous behind. 

 Length seven-twentieths of an inch. 



% Tergum on each side anterior to the middle, a slightly 

 carinated line ; lateral yellow spot on the middle none ; a yellow 

 band on the middle or a little posterior to the midille, and to- 

 wards the tip another yellow band ; ou the posterior declivity is 

 an abbreviated longitudinal yellow line or spot; sides with a yel- 

 low sj)ot or line interrupted from the extremities of the two pos- 

 terior bands ; of the two spots the anterior one is sometimes 

 wanting, and in some specimens is a lateral yellow joint near 

 the tip. 



Length three-tenths of an inch. 



Closely resembles ajfinis nob., in color and markings, but be- 

 tsides other differences the present species is larger and more 

 robust, and the oviduct is longer than the abdomen. A female 

 specimen was sent me by Dr. Harris, and I obtained several 

 males and one female in this State. ]'r. Harris's specimen 

 varies in having only a rudiment of the yellow spot of the mid- 

 dle of the tergum. 



I have obtained tluni chiefly on the blossoms of the parsnip. 



CHALCIS Fabr. Latr. 

 L C AM(ENA. — Yellow, variegated with black. 

 Inhabits Indiana. [*•*] 



Body with large, close-set punctures: yellow, slightly tinged 

 with green ; occiput and antennae, excepting the ba.-^al joint be- 

 neath, black : thorax .|ua<lrilinear with black, the intermediate 

 lines confluent at the middle, and all united by a transverse line 



isg:^.] 



