the Tipulid genus Styringomyia. 223 



well as in the genitalia. In the hypopygium the upper claspers are 

 modified into strongly chitinised, downwardly projecting hooks,which 

 make the hypopygium appear very different from that of any of the 

 other species. I have not examined the type of /. pallida, but 

 Grunberg's figures render its identification easy; he has, however, 

 omitted the ninth tergite, which has a characteristic form. 



Type of S. didyma in the British Museum ; of I. pallida 

 in the BerUn Museum ; additional specimens in the Edin- 

 burgh Museum. 



Loc. Sandwich Is. : Honolulu, Waiahua {Dr. R. C. L. 

 Perkins); Caroline Is. : Yap (Volkens). 



Bibliography. 



1845. Berendt, G. C. Die im Bernstein befindlichen 

 organischen Reste, etc. Tom. 1. — The name 

 Styringia, evidently intended for Loew's genus, 

 occurs in a hst of amber genera, but no character- 

 istics whatever are given (p. 57). 



1845. LoEW, H. Dipt. Beitr., Posen, i, p. 6. — The genus 

 Styringomyia with the type species S. venusta 

 described for the first time (p. 6). 



1850. LoEW, H. Bernstein und Bernsteinfauna. — S. venusta 

 wrongly referred to as S. pulchella (p. 31) ; 

 Styringomyia placed in a table of genera of amber 

 Tipulidae (p. 36) ; a second species, represented 

 by a single male found in amber, mentioned but 

 not described as S. gracilis (p. 38). 



1869. Osten-Sacken, Baron C. R. Diptera of North 

 America, Part 4. — Loew quoted, and his figure 

 of the wing copied ; a specimen in Zanzibar copal 

 briefly described but not named (p. 102). 



1873. Osten-Sacken, Baron C. R. Diptera of North 

 America, Part 3. — The statement made that 

 recent specimens from Calfraria existed in the 

 Stockholm Museum (additions to Vol. IV, p. vii). 



1887. Osten-Sacken, Baron C. R. Studies in Tipulidae, 

 II. Berl. Ent. Zeitschr.— The statements of 1873 

 repeated. 



1894. ScuDDER, S. H. Tertiary Tipulidae, with special 

 reference to those of Florissant, Colorado. Proc. 

 Amer. Phil. Soc, XXXII. — Knowledge of the 

 genus briefly summarised (p. 13). 



