ilie Early Stages t»/' raltostoma scliiiuii. lOii 



AVillistoii's dried cT co-typo (Iicy appcrir as mimitc oiic- 

 or two-joiiitt'd urj^ans, only iIkm-c tlic-y arc uiiiroruily dark, 

 not ]>ale with only the apical pit (hirk, as is the case in the 

 (perhaps inc()nipU'tely-pi;;nientcd) jjupa. 



Lahiuin [\'v^. \), lah.) very k)n{; and narrow, C(|MaI!in}jj the 

 lal)runi and hy|)opharynx in length ; there is a transverse 

 line of weakness near the hasc, at whi<'h the or^an can 

 evidently he bent ; another line of wi'akness (jnite close to 

 the apex, proximal to the small short lahellar porti(»n ; 

 owing to the apical part of the orjran nnforiunatcly being 

 twisted over on to its side, it is impossible to make out 

 whether, or how far, it is divided into two separate labclhe. 



\^M (Jill h -pari s of $ . — .Sonic biief remarks on the moutli- 

 paits in this sex are inserted here. Paucity of material has 

 prevented my dissecting these organs in one of tin; ? ? 

 described below by Lamb, and I have only been able to 

 examine them superficially in the dried insect (PI. XI. 

 fig. 17;. The prol)oseis is shorter and much more robust 

 than in the J, and the palpi are elongate, consisting of at 

 least three (perhaps four) joints. The comparative shortness 

 and stoutness of the i)roboscis has been mentioned by Bezzi 

 in his dcscri|)tion off*, hellardii ? (op. cit. 1913, p. Gl).] 



I have dissected and mounted the mouth-parts of a J of 

 the South African Kellofji/ina baniardi, Edwards, for com- 

 parison «ith tliose of the J I'ultostoina. In K. baniardi 

 also the j)arts are much elongated, but not nearly so long 

 and slender as in the Pallastoiua. K. baraurdl has the 

 labrum tapering to a fine sharp point ; hypopharynx long 

 and narrow, but much broader in proportion to its length 

 than in the Paltustoiaa, its edges apparently devoid of hairs, 

 its apex not bifid but coming to a point (fig. 12); maxilhe 

 Avith the lobes rather more pcunted at the apex than in 

 f^iiltostuma, and with tlie palpi much exceeding the lol}es 

 in length, and composed of four joints, the basal one very 

 elongate, subecpial in length to the lobe, the succeeding ones 

 becoming gradually slujrter ; labium much shorter and 

 broader ill proportion than in /'alio.stoina. [It may be added 

 tliat, under a high power, no sign of transverse division or 

 ditrerentiation of upper and lower facets could be seen iu 

 the eyes of K. bar/iardi.] 



There is no direct evidence of the feeding-habits of either 

 sex of Faltostoma. One cannot say what is the reason of 

 the extreme length and slenderuess of the parts in the (^ . 

 The hypopharynx does not give at all the impression of a 

 piercing organ, but would seem to be suitable for fcediii"- 

 on nectar. There ap[)ears to be cousideiable di\cisitv of 



