CHARLES P. ALEXANDER 29 



Tipula mitua sp. n. 



Monilifera group; antennae slender, moderately long (c?, 8.5 mm.); thorax 

 brown without apparent stripes; wings variegated brown and white; male 

 genitalia with the caudal margin of the ninth tergite deeply rounded, eighth 

 sternite with a prominent median lobe that is directed caudad. 



Male. — Length, 15.5 mm.; wing, 19 mm.; antennae, 8.5. mm. 



Frontal prolongation of the head rather long and slender, light brown; palpi 

 black, paler at the joints. Antennae moderately long (see plate IV, fig. 7) 

 but with the segments slender as in monilifera; the antennae are less than 

 one-half the length of the wings; the two basal segments are dull yellow, the 

 remaining segments with the basal enlargement black, the stem dark brown, 

 on the terminal segments almost black. Head light Ijrownish yellow with a 

 narrow dark brown median vitta. 



Thoracic praescutum brown without apparent darker stripes; on the inter- 

 spaces between the usual stripes are numerous brown spots surrounding setiger- 

 ous punctures; scutum and postnotum brown, narrowly edged around with 

 dark brown; scutellum yellowish brown. Pleura dull yellow. Halteres 

 moderately long, dull yellow, darkened toward the knob. Legs with the coxae 

 and trochanters yellowish brown, broadly tipped with dark brown ; tibiae and 

 tarsi dark brown. Wings brown and white, the shade of the brown a little 

 paler than that of monilifera; venation and pattern as in plate III, fig. 4. 



Abdomen dull brownish yellow with the lateral margins broadly dark brown; 

 terminal segments dark brown; sternites dull yellow. Hypopygium as in the 

 monilifera group; ninth tergite (plate V, fig. 4) with the median furrow of the 

 more generalized forms {exilis, et al.) reduced to a mere line; caudal margin of 

 the segment broadly and evenly rounded. Ninth pleurite rather prominent, 

 subrounded. Eighth sternite (plate V, fig. 7) prominent, with the caudal 

 margin very convex, bearing an elongate fleshy median lobe, this lobe directed 

 caudad. 



Habitat. — ^Colombia. Holotype, <f , Vallo de las Papas, 

 Colombia, altitude 10,000 feet, March 29, 19L3, collected by Mr. 

 John Thomas Lloyd. 



The specific name is that of a native Indian tribe occupying 

 the same region as the species. 



This species is similar to monilifera Loew and armiUafus 

 n. sp. in the dark brown and whitish wing-pattern, but differs in 

 the shortness of the antennae in the male sex (8.5 mm., with a 

 wing of 19 mm.) as opposed to monilifera with an antennal 

 length of 10 mm. and armillatus with the antennae over 12.5 

 mm. in length. From T. carizona Alex, it differs in the diversified 

 brown and white wings; from T. ornaticornis V. d. Wulp, by the 

 color-pattern of the thorax and abdomen. It agrees with these 

 two last species in the slender median appendage to the eighth 



TRANS. AM. ENT. SOC, XLII. 



