'77 



F.NTOMOLOGrCAL NEWS. 



[March, '13 



any of the American species, the types of which he has studied 

 in Cambridge. 



Dixa chilensis sp. n. 



Male. Length about 3.5 mm.; wing 3.8 mm. Mouth parts and 

 palpi dark brownish black; clypeus and front yellowish, suffused with 

 brown on the sides ; antennae dark brown, the third segment much 

 paler, more yellowish ; vertex and occiput pale yellowish-white. 



Pronotuni light chestnut brown ; mesonotum, praescutum very pale, 

 almost white with three dorsal stripes; the intermediate stripe is 

 broader and begins just behind the cephalic margin of the sclerite; 

 the lateral stripes are narrower, begin at about mid-length of the 

 sclerite, continuing caudad and including the sides of the scutum ; 

 middle line of the scutum and the scutellum dull yellowish ; post- 

 notum dark brown. Pleurae with a broad silvery white band, delimit- 

 ed by two narrow dark brown stripes, the upper one beginning on 

 the cervical sclerites and running to the base of the halteres ; the 

 lower stripe running above the bases of the coxae. Halteres pale, 

 apices of the knobs dark brown. Legs, fore and middle coxae yel- 

 low, brownish in front, trochanters pale, whitish-yellow; femora arid 

 tibiae very light brown, narrowly tipped with dark brown ; tarsi 

 brown ; hind legs, femora much brighter colored, yellowish, broadly 

 tipped with brownish black; tibiae dark on basal half, passing into a 

 broad, dull yellowish post-median band; tip of tibia swollen, black; 

 tarsi brown. Wings, subhyaline, cells C and Sc more yellowish ; an 

 irregular brown mark at the origin of Rs. a second at the arcuation 

 of R2+3. a third at the top of ^i extending down over the fork of 

 R 2 -(-3; cross veins and many of the longitudinal veins narrowly and 

 indistinctlv seamed with a lighter brown : anal cell a little brown 



on the angle; venation (see figure), cross vein r-m far before fork 

 t L Rs \ R 2 + :^ at origin perpendicular, extremely arcuated, fork of 

 K 2 + 3 much shorter than the fused portion. 

 Abdomen brown. 



Holotype, S, Concepcion, Chile: Aug. 23. 1904 (P. Herbst). 



Type in the Ungarisches National Museum. 



The species differs from all of the known American forms 

 in the e.xtreme arcuation of R 2+3 and the shortness of the 

 fork of this vein. 



