March 1897] BaNKS : SyRPHID.^ FROM LONG ISLAND- 41 



species may be mentioned Baccha auritiota, Pternllastes thoracicus, 

 Paragus tibialis and Neoascia globosa. 



Paragus angustifrons Loew. One, September. 

 Paragus tibialis Fall. Several, July. 

 Chrysogaster nigripes Loew. A few, June. 

 Chrysogaster nitida VVied. Common, June, July. 

 Melanostomum obscurum Say. One, May. 

 Melanostomum mellinum Linn. A few, July. 

 Platychirus quadratus Say. A few, July. 

 Platychirus hyperboreus Stteg. Two, July. 

 Syrphus arcuatus Fall. One, September. 

 Syrphus americanus Wied. Several, May, June. 

 Syrphus ribesii Linn. A few, July. 

 Xantogramma flavipes Loew. Several, July. 

 Allograpta obliqua Say. Common, July, August. 

 Mesograpta marginata Say. Several, July. 

 Sphaerophoria cylindrica Say. Common, July, August 

 Neoascia globosa Walk. One, May. 

 Sphegina lobata Loew. One, May. 

 Baccha lugens Loew. One. 



Baccha fuscipennis Say. Common, July, August. 

 Baccha aurinota Walk. One, July. 

 Rhingia nascia Say. Common, July, August. 

 Volucella evecta Walk. Several, June, July. 

 Sericomyia chrysotoxoides Macq. One, October. 



Eristalis tenax Linn. Common, April, July, Sept., October. 



Eristalis seneus Fabr. Common, April, July. 



Eristalis dimidiatus Wied. Several, April, July. 



Eristalis transversus W^ied. Several, May, July. 



Eristalis flavipes Walk. Two, August. 



Heliophilus conostomus Will. Several, June. 



Pterallastes thoracicus Loew. One, May. 



Mallota pcsticata Fabr. Several, July. 



Mallota cimbiciformis Fall. One. 



Triodonta curvipes Wied. Common, July, September. 



Tropidia quadrata Say. Several, May. 



Cynorhina analis Macq. Several, June. 



Somula decora Macq. One, June. 



Syritta pipiens Linn. Common, June, July, August. 



