Vol. XXlv] ENTOMOLOGICAL NEWS 44! 



Rostrum and palpi dark brownish black; antennae dark brownish 

 black ; front, vertex and occiput grey. 



Pronotum not conspicuous, dull yellow; praescutum orange medially, 

 lighter colored, yellowish, on the sides, a brown median stripe broad- 

 est in front near the cephalic margin of the sclerite, becoming indis- 

 tinct behind at about midlength of the sclerite, a rounded brownish 

 black spot on the sides of the praescutum near the suture; scutum, 

 scutellum and postnotum dull brownish yellow, not brightly colored. 

 Pleurae dull yellow. Halteres pale yellowish brown, knob and stem 

 almost unicolorous. 



Legs, coxae and trochanters dull yellow, femora dull yellow, the 

 tips broadly dark brown, tibiae yellowish brown, the tips broadly darker 

 brown, tarsi dark brown; the brown femoral and tibial apices are sub- 

 equal in length on all the legs. 



Wings hyaline, with a pale brown rounded stigma. Venation (see 

 Plate xvi, fig. 3) : Rs long and almost straight. 



Abdomen dark brownish black, the extreme apices of segments I to 6 

 indistinctly dull yellow; apical segments dull yellow, the base of the 

 7th tergite blackish. 



Holotype, 2 , Coroico, Bolivia, in the Hungarian National 

 Museum. 



Teucholabis jucunda, sp. n. (PI. XVI, Fig. 4). 



Head black; pronotum light yellow; mesonotum light yellow with 

 dark brown spots; pleurae with a large blotch; hind legs blackish; 

 halteres dark throughout; wings brown with two large enclosed sub- 

 hyaline blotches. 



Female. Length, 6 mm. ; wing, 8.3 mm. 



Rostrum and palpi black, the former elongated ; antennae dark brown- 

 ish black ; front, vertex and occiput black. 



Pronotum elongate, conspicuous, light yellow. Mesonotal praescutum 

 light reddish yellow or orange yellow, a shining brownish black tri- 

 angular spot on the middle of the sclerite, its anterior end broadest, its 

 apex directed caudad and becoming much paler behind, spreading out 

 over this part of the sclerite, a large rounded dark brown spot on the 

 sides of the sclerite behind ; scutum, lobes dark brownish black, median 

 line and margins of the sclerite reddish yellow ; scutellum and postno- 

 tum yellowish. Pleurae light dull yellow with a very large conspicuous 

 brownish black mark on the mesopleurae. Halteres brownish black 

 throughout. 



Legs, fore coxae and trochanters yellowish, rest of fore legs missing; 

 middle coxae and trochanters brown, base of the femora yellowish 

 brown soon passing into the dark brown of the tip, tibiae and tarsi 

 dark brown; hind coxae and trochanters black, femora, tibiae and tarsi 

 dark brownish black. 



