Feb., 1931 Bulletin of the Brooklyn Entomological Society 



UNDESCRIBED OR LITTLE-KNOWN CRANE-FLIES FROM 

 THE PACIFIC ISLANDS (TIPULID^E, DIPTERA). 



By Charles P. Alexander, Urbana, Illinois. 



Through the kindness of Prof. R. W. Doane and Mr. F. R. 

 Cole, the writer was able to examine the crane-flies collected by 

 Prof. Doane in Tahiti in 1908, in Samoa in 1913, and by Prof. 

 V. L. Kellogg in the latter island in 1902. The result of this 

 S'tudy has considerably extended our rather scanty knowledge of 

 the Tipulidse of oceanic islands although the main features of dis- 

 tribution are unmodified. The writer wishes to thank Prof. 

 Doane and Mr. Cole for the privilege of studying this material. 

 The types have been returned to Prof. Doane. 



Libnotes perkinsi (Grimshaw). 



Tahiti, August, 1908 (R. W. Doane) ; c^. 



Samoa, Apia, June-July 1913 (R. W. Doane) ; one small J*. 



This beautiful crane-fly was hitherto known only from Hawaii. 



Libnotes samoensis sp. n. 



General coloration shiny reddish brown ; head silvery white 

 with a dark brown vertical mark ; femora pale brown with a 

 broad, dark brown subterminal ring; wings subhyaline, the 

 stigma dark brown ; in the male cell ist R^ suffused with 

 brown ; Rs short, straight ; cell ist M.-, closed. 



Male. — Length 7.5 mm. ; wing, 9.8 mm. 



Female. — Length 6.8 mm. ; wing, 8 mm. 



Rostrum and palpi dark brown. Antennae with the scapal 

 segments pale brown, the flagellum dark brown; flagellar 

 segments elongate-cylindrical. Head with a pale silvery 

 pubescence, clearest on the anterior part of the vertex ; ver- 

 tex with a conspicuous dark brown median mark, the sides 

 less conspicuously darkened. 



Mesonotum shiny reddish brown, the lateral praescutal 

 stripes rather distinct, continued across the suture and suf- 

 fusing the scutal lobes; scutellum and median area of the 

 scutum pale; postnotum brown, paler basally. Pleura dull 

 yellow, darker dorsally. Halteres brown, the base of the 

 stem paler. Legs with the coxae pale brownish yellow ; tro- 

 chanters dull yellow ; femora pale brown with a broad, dark 

 brown ring before the slightly narrower yellowish tip ; tibia; 



