60 JOURNAL OF THE [April, 



Stigma, The abdomen is so highly polished that, when looking 

 in the microscope, the observer can see, reflected from the side 

 of the abdomen, a perfect inverted image of the body of the 

 microscope, the observer's head, and any object near it, espe- 

 cially the hand, when moved near the face. 



" In a case is also exhibited another species of Hyptia, collected 

 at Flatbush, L.*I., differing in coloration, but quite similar in 

 size and form to the first specimen. Also in the same case a 

 specimen of Evania appendigaster L., collected in the City Hall 

 Park, New York City. It will be seen that this j5'z;^;«'fl; resembles 

 very closely the two specimens of Hyptia in general form and in 

 the insertion of the petiole of the abdomen, but it is of twice their 

 size, differs in the neuration of the wings, and has the posterior 

 legs relatively much longer. 



" Only one species of Evania is recorded for the United States, 

 and it is parasitic on the cockroach. Three species of Hyptia 

 are recorded for the United States, but their habits are not 

 reported." 



Meeting of February 5TH, 1892. 



The President, Mr. J. D. Hyatt, in the chair. 



Twenty-one persons present. 



The Corresponding Secretary read the following communica- 

 tions from Mr. K. M. Cunningham, of Mobile, Ala., accompany- 

 ing donations to the Society : 



"January 15TH, 1892. 



*' EXPLANATORY NOTES ON SLIDES DONATED TO NEW YORK 

 MICROSCOPICAL SOCIETY. 



" Two slides of fresh-water diatoms, derived from subsoil at 

 Tuscaloosa, Ala., within a park enclosure facing grounds of 

 Alabama Asylum for the Insane ; material excavated from a 

 drainage ditch through the oak grove. The associated species 

 are few, viz. : Navicula viridis, Stauroneis phcenicenteron, 

 Nitzschia amphioxys, Eunotia diodon, and sponge spicules ; the 

 locality is the site of a former muck basin ; the deposit may 

 be said to be common to all low drainage areas about Tuscaloosa 



