449 ENTOMOLOGICAL NEWS [DcC, '13 



Thoracic dorsum dull rich yellow, the postnotum a little more grey- 

 ish. Pleurae dull yellowish with a faint greyish bloom. Halteres light 

 yellowish brown. 



Legs, coxse and trochanters yellow, femora, tibiae and tarsi dull yel- 

 low, the latter passing into brown beyond the metatarsus. 



Wings with a faint yellowish tinge, stigma very feebly indicated; 

 venation (see Plate xiv, fig. 10.) 



Abdomen brown, valves of the ovipositor very large, powerful, yel- 

 low, sternum light yellow, the sides of the sclerites broadly margined 

 with brown. 



Holotype, 5 , Callanga, Peru, in the Hungarian National 

 Museum. 



This is the third true Atarba described since the erection of 

 the genus in 1869. It is closely allied to picticor'nis O. S., of 

 the Eastern United States but is much smaller (wing of 9 .. 

 under 5 mm. ; in picticornis, over 6 mm.) ; valves of the ovi- 

 positor very long, stout, the upper valve with the basal two- 

 tliirds enlarged, the apical third slender, acicular, lower valves 

 flattened, blade-like ; upper valves much longer than the lower 

 valves ; the abdominal tergites dark brown, in picticornis. the 

 tergites dull yellow. 



Explanation of Plate XVI. 

 Wing of Teucholabis tristis sp. n. ; 9 . 

 Wing of Teucholabis fulgens sp. n. ; 9 . 

 Wing of Teucholabis jocosa sp. n. ; 9 . 

 Wing of Teucholabis jucunda sp. n. ; 9 . 

 Wing of Teucholabis laeta sp. n. ; S ■ 

 Wing of Teucholabis hilaris sp. n. ; 9. 

 Wing of Teucholabis munda sp. n. ; $ . 

 Wing of Teucholabis paradoxa sp. n. ; 9 . 

 Wing of Paratropeza collaris Osten Sacken; $. 

 Wing of Paratropesa jactans sp. n. ; $. 



