THE DIPTERAN FAUNA OF BERMUDA. 



By Charles W. Johnson. 



Since publishing a list of the Diptera of Bermuda in 1904, 

 (Psyche, vol. XI, pp. 76-80), I have received a number of 

 specimens from Professor Trevor Kincaid, collected in the 

 summer of 1905, and from Mr. Frank Morton Jones, collected 

 December, 190S-May, 1909, and Dr. Reynold A. Spaeth, 

 collected in the summer of 1910. The material thus obtained 

 at various seasons of the year together with the notes kindly 

 furnished by Mr. Jones, greatly increase our knowledge of 

 the Diptera of the Islands. The study of this material has 

 brought out many interesting points in distribution, some 

 of the species derived from the mainland having become 

 either slightly or decidedly differentiated. 



The previous list contained about fifty species. Little 

 of the data has been repeated, although all of the species are 

 included in the following list, which contains about ninety- 

 five species. 



TiPULIDAE. 



Tipula costalis Say. "This fly was abundant at Paget Marsh in 

 February and March, but seemed to completely disappear later." 

 (F. M. Jones). 



Dicranomyia liberta Osten Sacken. July 7, at light, (Kincaid), Feb. 

 U (F. M. Jones). 



Gonomyia (Leiponeura) pleuralis Will. This seems to be the most 

 common Tipulid and the one previously recorded as Dicranomyia 

 distans, Osten Sacken. It was taken by Professor Kincaid, July 

 5 and 20, and by Mr. F. M. Jones, Feb. 19 and May 6 and 8. 



Limnophila insularis sp. nov. Fig. 2. 



*ri 



v^. \ 



'^^V ^' 



This species has a general resemblance to L. recondita Osten Sacken. 

 The antennae in both sexes are of equal length, light yellow, flagellum 

 dark brown, the verticilli much shorter than in L. recondita. Head 

 blackish, covered with a greyish bloom. Thorax shining brown, 

 pleura dull yellow with a greyish bloom. Abdomen darlc brown, 



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