no Journal New York Entomological Society. [Voi. vil 



NEW AFRICAN SESIIDiE. 



By Wm. Beutenmuller. 



Sesia gabuna, sp. nov. 



$ . Head and antennae black ; collar black above, white at sides and beneath ; palpi 

 black above and at tip, yellowish-white beneath. Thorax black with a greenish re- 

 flection, a yellow line on each patagia and a yellow transverse mark on the posterior 

 end. Beneath with a golden yellow patch on each side. Abdomen blue-black with 

 a golden yellow ring on the posterior edge of the 2, 3, 4, 6 and 7 segments and a 

 yellow line on each side from the base meeting the first ring. Anal tuft blue-black, 

 narrowly edged with yellow on each side. Legs blue-black, anterior coxa; white on 

 each end ; tarsi yellowish on one side. Fore wings transparent bordered with violet 

 black, outer border very broad ; transverse mark rather prominent. Hind wings trans- 

 parent with a narrow violet black outer border. Fore wings beneath as above but with 

 silvery rays between the veins in outer border. Expanse, 20 mm. 



9 • Larger and more robust than the male, with rings on abdomen white and with 

 a white ring at base on hind tibiae. Anal tuft entirely black. Expanse, 25 mm. 



Habitat : Valley of the Ogowe River, French Congo, i ^ , 



49 9- 



Allied to Ses/a basiformis (^lustrans Grote). 



Sesia africana, sp. nov. 



Head, thorax and abdomen above metallic green-black. Abdomen beneath whitish. 

 Collar very slightly orange above ; palpi beneath pure white ; anterior and hind pair of 

 coxae pure white. Legs green-black, middle and hind pair with white annulations. 

 Fore wings green-black with three small transparent spaces, basal one linear, the one in 

 cell oval, and the one beyond the transverse mark largest and rounded. Hind wings 

 transparent with very narrow outer border. Antennae long, black. Expanse, 26 and 

 34 mm. 



Habitat : Valley of the Ogowe River, French Congo. 299. 

 Coll. W. J. Holland. 



Easily recognized by its uniform color and by the three transparent 

 spaces on the fore wings. It evidently comes near the European 

 scoli(eformis, but has no anal tuft ; this may have been worn off. 

 Sesia festiva, sp. nov. 



Head black with a minute orange spot at the base of the antennre, which are black 

 above and brown beneath. Collar golden orange above, white beneath. Palpi 

 white beneath, black above. Thorax brilliant orange red, except in the middle above 

 brownish-black. Abdomen violet black with a white ring on the 4th, 6th and 7th 

 segments. Anal tuft violet black, slightly white in the middle beneath. Legs violet 

 with white tufts ; anterior coxaj white. Wings transparent with narrow violet black 

 borders and transverse mark. Hind wings transparent, border very narrow. Wing 

 nealh as above. Expanse, 18 mm. 



