Xo. 64] DIPTERA OF CONNECTICUT : TAXONOMY 329 



L. {Rhipidia) shannon! (Alex.) (Fig. 37, F). 



1914. Rhipidia {Arhipidia) shannoni Alexander; Proc. Acad. Nat. 

 Sci. Philadelphia, 1914 : 581-582. 



Figs. — Alexander, Ibid., pi. 27, fig. 23 (wing). Alexander, Cfls. N. Y., 1, pi. 

 2,2, fig. 39 (wing) ; 1919. 



Mesonotum yellowish brown ; praescutum without distinct stripes, 

 the markings, when present, only near suture ; pleura with two narrow 

 longitudinal dark stripes. Sci ending at from one-third to one-fourth 

 the length of Rs. Male hypopygium (Fig. 37, F): rostral spines 

 two, slightly unequal. $ . L. 5 mm.; w. 6.5-6.8 mm. 9. L. 5.5 mm.; 

 w. 5.8-7.2 mm. 



(June-Sept.) Md., Va.. s. Ind., Tenn., S. C, Ga. and Fla. (Neotropics). 



Subgenus Alexandriaria Garrett 



1922. Alexandrdaria Garrett; Proc. Ent. Soc. Washington,.24: 60. 



Rather numerous species, occurring in many major regions of the 

 Globe. The single local species is rare and I have seen only the type. 



Limonia (Alexandriaria) whartoni (Ndm.) (Fig. 34, B). 

 1908. f Dicranonii/ia whartoni Xeedham; 23rd Kept. N. Y. St. Ent. 

 for 1907:211-212. 



Figs. — Needham, Ibid., pi. 27, fig. 5 (ven.). Alexander, Cfls. N. Y., 1, pi. 31, 

 fig. IS (ven.) ; 1919. 



General coloration yellowish; mesonotum darker. Head yellow; 

 antennal flagellum yellowish. Fore legs brownish, middle and hind 

 legs yellow. Wings hyaline ; veins brownish. $ . Expanse of wings 

 9.5 mm. (each wing thus about 4.2 mm.). 



(Aug.) Mich. 



Subgenus Geranomyia Haliday 



1833. Geram,omyia Haliday; Ent. JSIag., 1 : 154. 



A very extensive group of long-beaked crane-flies, especially nu- 

 merous in species in the tropics and subtropics. Unlike the other 

 groups of Tipulidae with elongate rostra, this in Geranomyia (Fig. 

 34, C) is constituted almost entirely of greatly lengthened labial palpi, 

 the true front being proportionately short. In all local species, there 

 is a supernumerary crossvein at near midlength of cell S^c. 



The adult flies are found on vegetation, where they suck nectar 

 from tubular flowers. The immature stages are very characteristic of 

 hygropetric associations, such as the faces of vertical cliffs, rocky 

 margins of streams, and similar situations where the rock surface is 

 covered with algal growth and the surface is continually wet with 

 falling or percolating water. 



Key to Species 



1. Wings heavily patterned with dark brown, including a series of four or five 

 larger costal areas; tips of tibiae conspicuously blackened, of fore tibiae 

 slightly swollen rostrata 



