New or Little-known Exotic Tipulidae. 43 



slender, chitinised rod that bears a small, slender spine on the outer 

 face just before mid- length, the long, acute point slightly curved 

 near the tip; inner pleural appendage a subflattened lobe that is 

 slightly arcuate, the proximal face set with setigerous punctures. 

 Penis-guard sparsely trifid at apex. 



Hab. Peru. 



Holotype, ^, Matucana, altitude 7788 feet, April 22, 1913 

 (C. H. T. Toivnsend). 



Type in the collection of the writer. 



The type of G. peruviana was formerly included in 

 the type-material of G. velutina as a paratype, and is the 

 species that is figured in the original description of the 

 latter species (Trans. Am. Ent. Soc, vol. 42, pi. 2, fig. 9; 

 1916; true velutina is shown in fig. 10). The two 

 species differ in the details of structure of the male 



iiypopygium. 



Gonomyia (Progonomyia) serena, sp. n. 



General coloration yellowish buff; mesonotal praescutum with 

 three brown stripes ; head grey ; wings with a faint yellowish tinge, 

 stigma subcircular, pale brown ; Sc2 lying before the origin of Rs ; 

 intermediate pleural appendages of the male hyjjopygium at near 

 mid-length dilated mto a collar which is produced into a slender, 

 cylindrical rod. 



Male. — Length about 6 mm. ; wing 6-6 mm. 



Female.- — Length about 6-5 mm. ; wing 6-8 mm. 



Rostrum obscure browTiish yellow ; palpi dark brown. Antennae 

 dark brown throughout. Head gi'cy. 



Mesonotal praescutum yellowish buflE with three conspicuous 

 brown stripes, the median stripe broadest, complete; scutal lobes 

 broAvn, median area pale ; scutellum obscure yellow with a narrow, 

 broAvn, longitudmal line on either side of the median vitta; post- 

 notum injured in tjrpe. Pleiira brownish plumbeous with a con- 

 spicuous, ventral, whitish longitudinal stripe as usual in the sub- 

 genus. Halteres pale, knobs darker brown. Legs with the coxae 

 pale, fore and middle coxae slightly infuscated ; trochanters pale ; 

 femora, tibiae and metatarsi obscure yellow, the tips narrowly 

 darkened ; remainder of tarsi dark bro^vn. Wings with, a faint 

 yellowish tinge ; stigma subcircular, pale bro^vn ; origin of Rs and 

 the cord very mdistinctly seamed with brown ; veins dark browTi. 

 Venation : Sc short, Sc\ endmg about opposite one-fourth Rs, Sc2 

 lying proximad of the origin of Rs ; Scl alone about one-thnd longer 

 than the basal deflection of Ciil; Rs angulated and spurred at 



