66 Journal New York Entomological Society. [Voi. xviii. 



of the insect head may throw some light on it. For this reason, and 

 also because it is the only case of the kind that has been noticed I 

 have considered it worth while to describe it in detail. 



Explanation of Plate III. 



(All figures drawn with camera lucida.) 



Fig. I. Syrphus perplexus, normal male, front view, stippled areas indi- 

 cate color markings. 



Fig. 2. Syrphus perplexus, side view. The dotted line indicates an area 

 of enlarged eye facets. 



Fig. 3. Syrphus perplexus, abnormal specimen, front view, showing the 

 twisting of the head due to the suppression of the left eye, color markings 

 indicated. 



Fig. 4. Syrphus perplexus, side view. G, gena. 



Fig. 5. Syrphus perplexus. Superior lateral view, more enlarged. Fr, 

 f rons ; Fa, face ; Sa, supernumerary antenna ; F, fossa of supernumerary an- 

 tenna ; V, vertical triangle ; 5"^, supernumerary vertical triangle ; O, occiput. 



Fig. 6. Syrphus perplexus. Normal antenna, enlarged. A, arista. 



Fig. 7. Normal vertical triangle, enlarged, showing arrangement of ocelli. 



PROCEEDINGS OF THE NEW YORK ENTOMO- 

 LOGICAL SOCIETY. 



Meeting of Tuesday, October 19, 1909. 



Held at the American Museum of Natural History. President C. A. Leng 

 in the chair, with twenty-six members and eight visitors present. 



The librarian, Mr. Schaeffer, reported the receipt of the following ex- 

 changes : 



Memorias de Instituta Oswaldo Cruz, Brazil. 



Wiener Entomologische Zeitung, XXVHI, Nos. 7 and 8. 



Zeitschrift f. Wissenschaft. Insektenbiologie, V, no. 9. 



Canadian Entomologist, XLI, No. 10. 



Directions for Collecting and Preserving Insects by Nathan Banks, Bull. 

 67, U. S. National Museum. 



The secretary reported that he had, as authorized at the last meeting, sent 

 a letter to Dr. Bumpus thanking him and the Museum authorities for the 

 ample provision which they had made for the meetings and work of the 

 Society. 



The president called upon Dr. Bumpus, who responded in a few words. 



Dr. Lutz proposed as an active member Mr. Halsey J. Bagg, 611 W. i52d 

 St., and Mr. Barber proposed Mr. C. V. Blackburn, of Stoneham, Mass. 



