XXxii, '21] ENTOMOLOGICAL NEWS 175 



Undescribed Crane-Flies from Argentina 

 (Tipulidae, Dipt.) Part III. 



By CHARLES P. ALEXANDER, Urbana, Illinois. 



The types of the novelties described in this paper are pre- 

 served in the collection of the writer, except where indicated 

 as occurring in the Museum of La Plata. The writer is 

 greatly indebted to Dr. Bruch and Engineer Weiser for their 

 kind co-operation in making known the interesting crane-fly 

 fauna of Argentina. 



Rhipidia subtertninalis new species. 



Antennae dark brown ; mesonotum yellowish fawn color, the praescu- 

 tum with a broad dark brown median stripe ; pleura brownish yellow 

 with two narrow dark brown longitudinal stripes ; femora obscure yel- 

 low with a narrow dark brown subterminal ring ; wings brown, the cos- 

 tal region variegated with dark brown and subhyaline ; basal deflection 

 of Cul at the fork of I\f ; abdomen reddish orange, segments six and 

 seven black. 



9 . Length 7.8 mm. ; wing 8.7 mm. Rostrum chestnut brown ; palpi 

 dark brown. Antennae dark brown, the first segment pruinosc; flagel- 

 lar segments unipectinate. Head dark with a sparse yellow pollen. 



Mesonotal praescutum fawn-colored, yellowish pollinose, with a 

 broad, median, dark brown stripe, broadest and most distinct on the 

 posterior half ; lateral stripes barely indicated ; scutal lobes dark brown ; 

 scutellum and anterior part of postnotum brown, the posterior half of 

 the latter more fulvous. Pleura light brownish yellow, pollinose, with 

 two narrow and indistinct dark brown longitudinal stripes, the more 

 ventral traversing the liases of the coxae and the dorsal portions of 

 the mesosternum. Halteres dark brown, bases of stem yellow. Legs 

 with the coxae yellow, dark brown basally; femora obscure yellow with 

 a narrow dark brown subterminal ring; tibiae and tarsi brownish black. 

 \Yines with a strong brownish tinge, with large, dark brown and sub- 

 hyaline blotches, more evident along the costal region ; the dark brown 

 areas include cell C\ Sc except three narrow yellowish areas; con- 

 spicuous brown clouds at stigma, origin and fork of Rs; tip of Sc ; 

 along the cord and outer end of cell 1st .1/2 and the dark centers of 

 cells 2nd R\. R3 and less distinctly, R5 and 2nd M2\ the subhyaline 

 areas appear in cell R before the origin of Rs; beneath Rs: in cells 

 \st R\, 2nd R\ and R3 ; a rounded subhyaline area in cell 1st A at the 

 end of vein 2nd A ; veins dark brown. Venation: Sc long, Scl ending 

 about opposite two-fifths Rs, Sc2 at the extreme tip of Sc\ and much 

 longer than Sc] alone; no supernumerary cross-vein in cell Sc; inner 

 end of cell 1st M2 arcuated; basal deflection of Cul at the fork of M. 



Abdomen reddish orange ; segments six and seven black ; lateral mar- 

 gins of the tergites narrowly darkened. 



Habitat : Argentina. Holntype, 9 , I^a Plata, Bosque, May 

 23, 1920 (C. Bruch), in the collection of the Museum of La 

 Plata. 



Rhipidia microsticta new species. 



(ieneral coloration brownish buff; antennae brown, only 'the pedicels 

 of the flagellar segments paler ; mesonotal praescutum with an inter- 

 rupted median stripe and short lateral stripes ; pleura buffy with two 



