234 Forty- FOURTH Heport on the State Museum 



large numbers, on the pollen of corn; while in Florida it has been 

 discovered in great abundance, engaged in puncturing the saccharine 

 cells of the leaves at their base and also of the stalks, and sucking up 

 the exuding juice. Thus far, no serious injury has been seen to result 

 from its operations.* 



Chloropisca prolifica (Osten Sacken). 



The Prolific Ghlorops. 



(Ord. Diptera: Fam. Oscinid^.) 



Lintner: Fourth Eept. Ins. N. Y., 1888, pp. 67-72, f. 30; in (and from) 41st 

 Eept. N. Y. St. Mus. Nat. Hist., 1888, pp. 187-192, f. 30; in New York 

 Times of April 14, 1890; in Albany Daily Press and Knick., for 

 April 15, 1890; in Plattsburgh (N. Y.) Morning Telegram, for April 

 23, 1890 ; in Country Gentleman, for May 1, 1890, Iv, p. 349. 



In the "Fourth Report on the Insects of New York (4l8t Kept, on 

 the New York State Museum of Natural History) for the Year 1887," 

 as above cited, an account is given of a fly that had been brought to 

 my notice during the year, as hibernating in immense numbers in a 

 dwelling-house, in Franklin, N. H. It was found to be an unde- 

 scribed species of the Oscinidce, and was accordingly given the name 

 of Chloropisca prolifica Osten Sacken. Figure 6, representing it, is 

 from a drawing made by Mr. J, Bridgham, greatly enlarged — the 

 cross-lines beside it giving the natural size.f 



Fig. 6.— The Prolific Clilorops, Chlokopisca pbolifica, eniarged. 



Remarkable Gatherings of the Fly. 

 Examination showed it to be closely allied to other species of 

 Oscinidce, which, under the generic name of Ghlorops had been 



* Insect Life, i, 1888, pp. 6, 7. 



t The cross-lines show twice the natural size of the fly, the photo-engraver having 

 reproduced the figure in full size of drawing, instead of reducing it to one-half, as 

 directed. 



