

^^0 Sai/s Descriptions of 



yellow spot at tip of the ultimate segment: oviduct longer 

 than the abdomen, reaching almost to the scutel : tarsi 

 and anterior tibia; ferruginous, the latter dusky on the 

 middle : intermediate tibia and l-nees yellow, tinted with 

 feri-uginous behind : posterior thighs dentated beneath, 

 yellow at base and tip ; tibiae yellow before, somewhat 

 ferruginous behind. 



Length seven twentieths of an Inch. 

 ■' ^ S Tergura 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 middle, and towards the tip another yellow band ; 

 on the posterior declivity Is an abbreviated longitu- 

 dmal yellow line or spot; sides with a yellow spo°t or 

 line bterrupted from the extremities of the two posterior 

 bands ; of these two spots the anterior one Is sometimes 

 wanting, and in some specimens is a lateral yellow point 

 near the tip. 



Length three tenths of an inch. 



Closely resembles affinis, Nob. in color and markings, 

 but besides other differences the present species is larger 

 and more robust, and the oviduct is longer than the abdo- 

 men. A female specimen was sent me by Dr. Harris, and 

 I obtamed several males and one female In this State. 

 Dr. Harris's specimen varies in having only a rudiment 

 of the yellow spot of the middle of the tergura. 



I have obtained them chledy on the blossoms of the 

 parsnip. 



Chalcis, Fabr. Latr. 



l.C anmna. Yellow, variegated with black 

 Inhabits Indiana. 



