( 672 ) 



•<? ?. Tlic belt is sitnatoil iiihui torjjites 4 iiiid •) and is excised nicsially in IVont 

 as well as behind; it is chalky wiiite, assnuiing a bluish tint only where some of 

 the ni)iier white scales are rubbed away. The underside of the abdomen is also 

 remarkably dittevent from that of comma.v'ai:, the white colour gradually fading 

 away and the jiosterior half being more or less clayish, not black. The wings are 

 paler slate-colour than in commas/ae. 



<?. Sexual armature as in comma tiiaf, but the harpc hmger, more liook-shajied, 

 with the edge densely dentate (PI. L. f. "j:?). End of tentli tergite sinuate (PI. XLV. 

 f. 5). Penis-sheath see PI. LVI. f. 4:i. 



Hah. East Africa : Natal to British East Africa. 



In tlie Tring Museum 4U-odd specimens from: ^s'ataj ; Nyassaland ; German 

 and P>ritisli East Africa. 



SLI3KAJIILV Choerocampinae.— T^jius : I'cnjcsa cljx'nor. 



!<l>hiiu- Linne, Si/xl. Xnt. ed. x. p. 489 (1758) (partim). 



Sji/iiiigiil'S Leech, in Brewst., Edinh. Eiici/cl.ix. p. 1^0 ( 1815) (partim). 



Sjiliiiiiik!((f Samouelle, Eiil. Cumpend. p. 243 (1819) (purtiui). 



Euinurjihuf Hiibner, Fri-i. hek. Schm. p. 133 (18'22) (partial). 



Deilephila< id., l.r. p. 130 (1822) (partim). 



ChacriK-dmjiliii Grote i<: Robinson, Pror. Eiil. Soc. Philnil. v. p. 153 (ISC.")) (partim : /(.////. niiil.). 



" Deile'philides " Boisduval, Sper. Gin. Lip. Hit. i. p. 158 (1875) (partim). 



Cliiienicaiiipiiiiii/ Butler, Tmnx. Ziml. Sue. Limd. ix. p. 510. 544 (1877) (partim : type : ilpeimr). 



Deihphilidae Burmeister, Di'Scr. Rip. An/eiit. v. p. 336 (1878) (partim). 



PhUampelidae id., Lr. p. 345 (1878) (partim). 



c? ? . Pilifer consisting of an apical ])art bearing sliort (ur vestigial) bristles 

 and a i)ro.\imal part bearing long ones (PI. LXIl. f. 2). Genal process short, 

 uot mucii i)rojectiug. Inner surface of second segment of palpus more or less 

 naked (PI. LIX. f. 14—27). End-segment of antenna elongate, but not tiliform, 

 with six or more very long bristles (PI. LX. f. 12). 



Larvae cylindrical, tapering in front, or third and fourth segments enlarged ; 

 a dorso-lateral and an infrastigmatical stripe, the upper often replaced by a series 

 of ocelli; the number of ocelli variable, often only one present (on fourth segment) : 

 horn not always jiresent in adult stage. 



Pupa with compressed or carinate tongue-case, which is mostly large, in one 

 instance {Rhynckolaba) projecting free and resting with end against breast. 



Hah. Cosmopolitan. 



This is a very sharply circumscribed group of genera. It is a development 

 from a Fliola.^-\\k^ ancestral form, deviating from all other Sphinyidac in the 

 peculiar structure of the pilifer and palpus. The pilifer does uot vary much within 

 the snbtamily, while the i)a]pus exhibits various modiiieations in structure which 

 are of generic value. AVe have here in respect to tlie palpus an instance of 

 progressive specialisation : the moditied palpus in which the branch now repre- 

 sented by a group of genera originally dili'ered from tlie allied forms became tarther 

 specialised in several directions and to a various degree. 



The antennae are more or less clubbed, esjjecially in the ? ? , with an abrupt 

 hook, or setiform with a slender gradual hook ; the end-segment, though somewhat 

 varying in length, is never very short, remaining always elongate-conical or 

 cylindrical : it is shortest in Celerio. Its long bristles are either all terminal ami 

 snbterminal (PI. LX. f. 12), or there are some additional ones moi'e proximally 

 on the ventral side ; the segment has no or few scales dorsally. The antennae arc 



