AET. 2 NEW UlTDESCEIBED CRANE FLIES ALEXANDER 15 



ULOMORPHA ARIDELA, new species 



Head dark, pruinose ; mesonotum obscure brown with three shiny 

 black stripes ; scutal lobes similarly blackened ; wings fulvous-yellow, 

 the stigma barely indicated; cell M^ present; abdominal tergites 

 brown, the sternites obscure yellow. 



Female. — Length, 14 mm.; wing, 12 mm. 



Rostrum obscure yellow, the palpi dark brown. Antennae very 

 long and slender (for this sex), if bent backward extending to beyond 

 the wing root; basal segments brown, paler ventrally; flagellar seg- 

 ments beyond the second uniform brownish black ; flagellar segments 

 cylindrical, becoming very elongate cylindrical on the outer segments, 

 with the limits between segments difficult to determine; all flagellar 

 segments with very long verticils, as in the genus. Head dark, 

 heavily gray pruinose, brighter adjoining the eyes, the anterior 

 vertex and front more yellowish. 



Pronotum dark brown, yellow laterally. Mesonotum obscure 

 brown, the praescutum with three shiny black stripes that are vir- 

 tually confluent, the interspaces being a trifle paler, sparsely pruinose ; 

 median stripe more intensely black than the lateral stripes ; humeral 

 region more yellowish, including a very small brighter yellow spot 

 behind the pseudosutural foveae; scutum reddish brown, the lobes 

 largely shiny black, the posterior lateral regions obscure yellow; 

 scutellum and postnotal mediotergite black, the latter dulled basally, 

 the extreme lateral margins of the cephalic half yellow ; pleura mostly 

 yellow, indistinctly variegated with reddish brown on the anepister- 

 num and sternopleurite, producing ill-defined longitudinal stripes; 

 dorso-pleural region more yellowish. Halteres brown, the extreme 

 base of the stem narrowly yellowish. Legs with the coxae and 

 trochanters brownish yellow; femora brown, the bases yellow, the 

 tips insensibly passing into darker brown ; tibiae brown, the tips nar- 

 rowly darker brown; tarsi dark brown. Wings with a strong ful- 

 vous-yellow tinge, the stigma barely evident ; veins brown. Macro- 

 trichiae of cells abundant, continued basad beyond the level of the 

 origin of i?5, in cells (7, ^, il/, and -first A considerably basad of this 

 level ; cell Be devoid of trichiae except at extreme outer end. Vena- 

 tion ; /SCi, ending shortly before the fork of i?5, /S'<?2 at its tip ; cell ^3 

 sessile; R^^^ nearly three times R^ alone; i?2+3 and ^3 subequal; cell 

 M^ present, a little more than twice its petiole; cell f^rst M^ large, 

 pentagonal, tti-gu not far from midlength. 



Abdominal tergites brown, with a narrow darker dorso-median 

 line; sternites obscure yellow. Ovipositor with the tergal valves 

 very long and slender, gently upcurved to the acute tips, horn 

 colored, darker basally. 



