CHARLES P. ALEXANDER 223 



ON A COLLECTION OF CRANE-FLIES FROM BRITISH 

 GUIANA (TIPULIDAE, DIPTERA)' 



BY CHARLES P. ALEXANDER 



Ithaca, Xew York 



The present paper is the result of the study of an extensive series 

 of crane-flies collected in British Guiana by the well-known ento- 

 mologist, Mr. H. S. Parish, during 1912 and 1913. The material at 

 hand consists of some 1200 specimens representing fifty-five species 

 of which twenty-four are herein considered as new. Unless 

 stated otherwise the specimens were taken at light as explained 

 under Mr. Parish's account of his trip. The habit of many of the 

 species of ovipositing at twilight or during the night explains why 

 so many of the individuals secured at the lights were females. 



The types and miiques are deposited in the collection of the 

 author. Paratypes of several of the species have been placed in the 

 collections of the United States National Museum, the Hungarian 

 National Museum, the Academy of Natural Sciences of Phila- 

 delphia and the Museum of Comparative Zoology. 



Mr. Parish's Account of the Trip : 



I boarded my steamer at New York and after a journey lasting 

 seventeen days I arrived at Georgetown, the capital of British Gui- 

 ana, on November 28, 1912. On the second day after my arrival 

 at Georgetown I caught the river boat that plies between there and 

 Bartica, which latter place I reached after a pleasant trip of about 

 40 miles up the Essequibo River. Bartica is a pretty little village 

 having a population of between 800 and 1000 including the Indians. 

 The weather there is, on the whole, rather uncertain though one 

 can generally depend on a little rain every day, excepting from 

 September to November, during which months the rainfall is veiy 

 slight. However, as I remarked above, one camiot place any 

 dependance on the weather and it is well for the prospective col- 

 lector to include in his impedimenta a good waterproof cape and an 

 umbrella as a safeguard against fever and for his personal comfort. 



■ Contribution from the Entomological Laboratory of Cornell University. 



TRANS. AM. KNT. SOC, XL. (17) 



