1921] NATURAL SCIENCES OF PHILADELPHIA. 97 



obscure yellow ; remainder of the legs brown, the tarsi darker. Wings 

 with a strong brownish tinge, the costal and subcostal cells more 

 yellowish; stigma oval, brown; veins brown. Venation: Rs longer 

 than R2+3; r-m about one-half the deflection of Ri+5; deflection of 

 M2 a little longer than r-m; basal deflection of M3+4 about one-half 

 longer than the deflection of M1+2. Abdomen Hght brown, the 

 basal tergite gray pruinose, eighth segment darker brown; tergites 

 with an indistinct sublateral stripe. Male hypopygium having the 

 ninth tergite ^^^th a very large U-shaped median notch, the lateral 

 lobes but feebly provided with bristles. Outer pleural appendage 

 slender at the base, at the apex dilated into a flattened blade; inner 

 pleural appendage complex, the lateral portion produced into two 

 long, parallel, reddish spines, the caudal margin of the posterior 

 spine with a single row of setigerous tubercles, each tubercle bearing 

 a long yellow bristle, the outermost tubercle enlarged into a slender 

 tooth; proximal portion of the appendage produced into a slender, 

 arm-like blade that juts towards the notch of the ninth tergite. 



Habitat. — Brazil. 



Holotype, cT, Teffe, February 3, 1920 (H. S. Parish). 



Genus MICRO TIPULA Alexander. 

 1912. Microtipula Alexander, Ann. Ent. Soc. Amer., vol. 5, pp. 360, 361. 



Microtipula amazonica Alexander. 



1912. Microtipula amazomca Alexander, Ann. Ent. Soc. Amer., vol. 5, 

 pp. 361, 362. 



The types were collected at Igarape Assii, Brazil, January 27-29 

 1912 (H. S. Parish). 



Genus TIPULA Linnaeus. 

 1758. Tipula Linnaeus, Syst. Nat., edit. 10, p. 585. 



Tipula parish! Alexander. 



1912. Tipula parishi Alexander, Ann. Ent. Soc. Amer., vol. 5, pp. 355, 

 356. 



The type was taken at Igarape Assii, Brazil, January 26, 1912 

 (H. S. Parish). 



Tipula diacanthos sp. n. 



Belongs to the monilifera group; antennal flagellum uniformly 

 brownish black; general coloration shiny yellow, the abdomen with 

 a subterminal black ring; wings yellowish gray, the costal and sub- 

 costal cells brighter; male hypopygium with the ninth tergite tri- 

 dentate; eighth sternite very large, terminating in two conspicuous 

 spines that are directed caudad and dorsad. 



Male. — Length 15.5 mm.; wing 14.2 mm.; ant^na 11 mm. 



Frontal prolongation of the head very stout, comparatively short, 

 yellow, the dorsal surface with erect black hairs that terminate in 

 a tuft at the apex of the stout nasus; palpi elongate, pale brownish 



