152 Journal New York Entomological Society. t Vo1 - xxvu. 



of the median dorsal stripe, on segments three to seven subbasal in position ; 

 dorsal median stripe very broad. Ovipositor with the tergal valves long and 

 slender, acicular, lying almost parallel ; sternal valves shorter and deeper. 



Habitat : Argentina. 



Holotype, J 1 , Cerro de Carocal, Catamarca, altitude 3,100 meters, 

 February 17, 1915 (P. Jorgensen). 



Allotopotype, 5- 



Paratype, g, Andalgala, Catamarca, altitude 1,000 meters, August 

 1, 1914 (P. Jorgensen). 



This new species belongs to the monilifera group of the genus, 

 which has been discussed in some detail by the writer (Trans. Am. 

 Ent. Soc, vol. 42, pp. 23-30, pis. 3-5, 1916) and is of exceptional 

 interest as belonging to the intermediate group of species, falling 

 between the forms with short antennae and those with elongate 

 organs. In the present species the antennae are quite normally 

 tipuline in structure; the lateral lobes of the trifid appendage on the 

 eighth sternite are shorter than in exilis Alex. (Peru), but longer 

 than in jivaro Alex. (Ecuador). The semiatrophied wings of the 

 female sex are interesting. 



The specific name, andalgala, is that of a Calchaqui tribe of this 

 region. 



Tipula spinicauda new species. 



Belongs to the longitarsis group ; general coloration brown ; abdomen 

 reddish-yellow, in the male with' a subterminal black ring; wings dusky with 

 the costal region dark brown; male hypopygium with the lateral angles of the 

 ninth tergite produced caudad into straight chitinized arms that are minutely 

 spinulose on their inner faces. 



Male. — Length, about 14 mm.; wing, 12.5 mm.; antennae, about 6.5 mm.; 

 fore leg, femur, 9.6 mm.; tibia, 12. 1 mm. 



Frontal prolongation of the head short, brown, the nasus distinct. Palpi 

 long, brown. Antenna; with the scapal segments dull yellow, the flagellum 

 black, the first segment a little paler at the extreme base; flagellar segments 

 elongated. Head brown. 



Mesonotum rich reddish-brown without distinct stripes, the praescutum 

 brighter laterally ; scutal lobes darker. Pleura yellowish-buff. Halteres brown. 

 Legs long and slender, the coxae and trochanters buff, femora dark brown, 

 paler basally ; tibiae and tarsi dark brown. Wings with a decided dusky tinge, 

 cells C and Sc and the stigma dark brown ; apex of the wing in cells R 2 and 

 i? 3 infumed ; indistinct brown seams along the veins that include and lie be- 

 yond the cord ; veins dark brown ; small obliterative areas before the stigma, 

 in the end of cell R, base of cell 1st M 2 and the base of M t . Venation : R, 



