EAST AFRICAN MOTHS. 109 



Abdomen paler grey. Fore wing grey, palest anteinedially ; a 

 black spot at end of cell, and a fuscons-grey oblique band across 

 the middle, broadest on the costa, and curving inwards gradually 

 until it becomes linear on the inner margin. An indistinct sub- 

 marginal line from apex to inner margin where it becomes 

 blackish. Between this line and the medial band there are some 

 small black spots above the inner margin. Hind wing pale 

 ochreous with medial and submarginal dark-grey bands, between 

 which the distal area is mottled with dark grey spots. Cilia 

 white. Underside similar to the upperside, but paler. 



Habitat. Kedai, 25th November. Expanse 72 mm. 



This form is nearest to Hippotion rosai Butler, from Delagoa 

 Bay, but is much smaller, and has no pink antennas as in that 

 species. 



101. Hippotion diyllus, sp. n. (PI. II. fig. 23.) 



Description. — J. Head, thorax, abdomen, antennas, and fore 

 wing very pale yellowish ochreous ; hind wing rather darker to- 

 wards the margin, with a pinkish tinge on the discal area. Cilia 

 white, with minute dots at the end of the veins of the fore wing. 

 Two subapical blackish dots on the costa of the fore wing, and a 

 small orange spot below the cell, at the base of interspace 3. 

 Underside similar but paler on the margins. 



Habitat. Kedai, 25th November. Expanse 56 mm. 



This form, though very different in colour, resembles somewhat 

 in structure the common green Basiothma meclea Fabricius, but 

 is a true Hippotion. 



102. Hippotion exclamationis, sp. n. (PI. II. fig. 24.) 



Description. — <$—. Head, body, and fore wing pale ochreous; hind 

 wing greyish fuscous with pale submarginal and marginal ochreous 

 bands. Fore wing with a small black spot at extremity of cell, 

 and close to it a black elongate spot in interspace 4 ; the two spots 

 being in the form of a note of exclamation. A submarginal row 

 of small black spots on the veins of the fore wing. 



Habitat. Masongaleni, 9th June. Expanse 70 mm. 



This form is nearest to Hippotion roseipennis Butler (which 

 also occurs in this district), but differs from it in being pale buff, 

 instead of dull green with a reddish hind wing. It also lacks the 

 postmedial line of roseipennis, and instea,d of a submarginal line 

 from the apex of the fore wing has a line of black spots on the 

 veins. 



103. Hippotion roseipennis Butler. 



Habitat. Kedai, 16th January. A faded specimen, 



104. Hipfotion eson Cramer. 

 Habitat. Meru, taken by Lady Col vile. 



105. Hippotion celerio Linnaeus. 

 Habitat. Meru, taken by Lady Colvile, 



