Vol. Xxiv] ENTOMOLOGICAL NEWS 443 



dark color along the cord, these two bands cutting off a large oval 

 blotch of the ground color, base of the wing almost free from brown 

 markings, except at the tips of the anal veins. Venation (see Plate 

 xvi, fig. 5) : Sc long, origin of Rs far before its tip. 



Abdomen with the tergites dark shiny black, the fifth much paler, 

 yellowish, basally and apically; sternites reddish yellow, uniform. 



Holotype, $ , Songo, Bolivia, in the Hungarian National 

 Museum. 



Closely allied to jiicnnda but much smaller, the thoracic 

 coloration especially in the pleurae different and wing-pattern 

 and venational details quite distinct. It should be noted that 

 in the genus Teucholabis, the males are invariably larger than 

 the females, a condition that is quite different from what oc- 

 curs in most crane flies. 



Teucholabis hilaris, sp. n. (PI. XVI, Fig. 6). 



Head reddish ; pronotum yellow ; mesonotal praescutum yellow with 

 three broad brown stripes confluent behind ; scutellum yellow ; posterior 

 coxae dark; wings hyaline with the tip infuscated. 



Male. Length, 5 mm.; wing, 5.5 mm. Female. Length, 4 mm.; 

 wing, 4.8-5 mm. 



Rostrum and palpi brownish yellow ; antennas basal segment orange 

 yellow, flagellum black ; front, vertex and occiput orange yellow. 



Pronotum conspicuous, rich orange yellow, very shiny. Mesonotal 

 praescutum yellow with three very broad dark brown stripes which 

 almost conceal the ground color, these stripes confluent behind near 

 the transverse suture ; scutum yellow, each lobe with a large dark 

 brown rounded spot in the center ; scutellum light yellow ; postnotum 

 brownish black. Pleurae, propleurse yellow ; meso- and metapleune 

 dark shining black. Halteres, stem brown, knob bright orange yellow. 



Legs, fore and middle coxae and trochanters light orange yellow, 

 fore femora yellowish on basal fourth, remainder dark brown, tibiae 

 and tarsi brown, the former a little brighter medially ; middle femora 

 light yellow with a rather broad dark brown tip, tibiae with the base 

 and tip dark brown, the medial portion yellowish brown ; tarsi dark 

 brown; hind leg, coxae and trochanters dark brownish black, femora 

 light yellow with the tip broadly dark brown, tibiae yellow with the 

 base narrowly dark brown, the tip broadly of the same color, tarsi 

 dark brownish black. 



Wings, hyaline, the tip broadly infuscated with light brown; a dark 

 brown basal spot in the region of the arculus ; a dark brown triangular 

 stigma which sends a narrow brown seam down along the cord to 

 cell ist Mz. Venation (see Plate xvi, fig. 6) : Origin of Rs opposite Sc2. 



