51 



more especially on those of cultivated plants. Larvae 

 of Syrphus flies, most likely this species, are often seen 

 devouring plant lice on different cultivated plants and 

 trees. Most of the specimens in the collection were 

 taken between July 1, and September 15. 



4. Syrphus americanus, Wiedeman. Taken in 

 various parts of the State, but apparently not as 

 common as the preceeding. 



5. Didea fuscipes, Loew. Taken at Sandusky, 

 July 15, 1896, al.-;o at Columbus. Does not appear to 

 be common. 



w. Sphegina Jobata, Loew. Taken at Medina, 

 August fl. 18!)S. The single female taken was flying 

 among foliage in a sunny place near the edge of 

 woods. 



7. Baccha aurinota, (Harris) Walker. The 

 species belonging to the genus Baccha are very long 

 bodied. This is one of the largest and longest. 

 A single specimen was procured at Columbus. 



8. Baccha fuscipennis. Say. Taken at Medina, 

 Aug 8, '1)8. Like the other species of the genus, this 

 one has the habit of remaining almost motionless 

 while poised in the air a few feet from the ground. 

 The larvae are known to feed on Aphides. 



0. Rhhigia nasica. Say. This species has the 

 face produced into a snout-like projection nearly two 

 millimeters in length. It is a common form and 

 seems to be partial to the flowers of the wild touch- 

 me-not. Impatiens fulva. as I have taken it repeatedly 

 in them. Apparently a common species in all parts of 

 the state. 



10. Sericomyia chrysotoxoides, Macquart. This 

 fine species has the transverse bands of the abdomen 

 in the middle and slightly oblique. The costal 

 margin of the wings is infuscated. In a certain place, 

 in a woods at Medina. I always took species new to 

 me every time I visited it. This is one of those taken 



