172 Journal New York Entomological Society. [vol. vii. 



orange on inside of outer border and the patagia finely lined with 

 yellow. The hind tibiae and tarsi are clothed with rather long hair. 

 Sesia malimba, sp. nov. 



Head brown-black, face pale orange-yellow ; palpi orange ; antennas black above, 

 orange beneath ; thorax brown-black with indication of a fine orange stripe along 

 the patagia. Abdomen brown-black with a broad yellow band on the 2d and 4th 

 segments above, brown beneath. Legs orange, femora brown. Fore wings with 

 transparent areas small, the outer one round, border and transverse mark broad 

 brown-black ; rayed with a little orange between the veins on outer part, along inner 

 margin and in the basal transparent area. Underside similar to the above. Hind 

 wings transparent with narrow brown margin. Expanse, 20 mm. 



Habitat : Valley of the Ogowe River, French Congo. 1 9 . Coll. 

 W. J. Holland. 



Allied to 5. mellinipennis. 

 Sesia brill ians, sp. nov. 



Head black ; palpi orange ; antenna' black. Underside of abdomen, thorax and 

 legs orange. Thorax and abdomen above blue-black, the former with a transverse 

 orange mark posteriorly, the latter with an orange ring on 2d segment and 4th and 

 5th segments orange. Anal tuft blue-black. Fore wings orange, basal half and outer 

 border blackish. In the orange field are two very small opalescent spots, and a simi- 

 lar one in the cell but is a little larger than the rest. Hind wings transparent, outer 

 border broad, and gradually narrowing as it reaches the hind angle, bronzy brown 

 marked with orange inside. Fore wings beneath golden orange, outer part brown- 

 black, spots repeated. Hind wings as above. Expanse, 13 mm. 



Habitat : A r alley of the Ogowe River, French Congo. 1 $ . 

 Coll. W. J. Holland. May be easily known by the orange fore wings 

 with three opalescent spots. 



Sesia tropica, sp. nov. / 



Head black ; palpi, thorax posteriorly, legs and abdomen above wholly orange ; 

 anal tuft blue-black, beneath golden yellow. Thorax anteriorly black. Antenna? 

 brown-black with a white patch before the tip. Fore wings orange, outer part 

 and fringes brown ; costa narrowly brown ; in the cell is a small triangular space, 

 and an oblong one beyond the transverse mark. Hind wings transparent, border 

 narrow, brown. Fore ; wings beneath golden yellow at base, gradually becoming 

 brown. Expanse, 1 3 mm. 



Habitat: Valley of the Ogowe River, French Congo. 1 ?. 

 Coll. W. T. Holland. 



