( -134 ) 



tapering in fmnt and also becomiu<r almnst gradnally thinner backwards. Tho 



chrysalis is more or less strongly rngato, often resembling a piece of wood ; the head 

 and thorax are nsnally curved upwards as in the preceding section, but not so 



strongly, being almost straight iu certain species (for instance, cbjtia). The 



antenna! segments are more or less narrowed at the bases and somewhat compressed; 

 the fine sensory hairs are either vcntrally concentrated in a patch on each side, 

 there being no distinct grooves as in the j)re('ediug Section, or the hairs cover nearly 

 the whole ventral surface. There is no scaling on the antenna, except at the extreme 

 base. The tibiae are never incrassate iu the (?, as they often are in the Aristolochia- 

 Swallowtails ; the ventral spines of the tarsi are separated from the dorsal spines 

 by a regular, somewhat impressed, sjjineless interspace. The abdominal margin of 

 the hiudwiug is always curved downwards, having the appearance of being fluted 

 beneath, the two sexes resembling each other in this respect, while in the males of 

 the two other Sections the abdominal margin is usually modified, bearing nearly 

 always a distinct scent-organ. 



This Section comprises the majority of the Papilios. It is less homoeomorphic 

 than the preceding Section. Many species are mimetic. 



III. Kite-Swallowtails ; ji- 'j^-i- The most characteristic forms of this 



Section somewhat resemble a paper kite (for instance, iloi-cus, cmtlwus, pro/cxi/aiis). 



• The third thoracic segment (jf the larva is enlarged, as in the preceding section; 



the thoracic segments and the anal one bear often spinelike tubercles, the anal 

 spines standing close together : in other forms the tubercles are absent or vestigial, 

 traces of tubercles being usually found on all segments. There are no eye-spots or 

 oblique bands, the pattern consisting of small dots, or several transverse lines 



(belts) on each segment, or more or less irregular longitudinal bands. The 



chrysalis is more smooth than in the other Sections ; its head and thorax are hardly 

 at all curved upwards. The mesonotum bears a pyramidal projection which is 

 carinate in front and behind and at the sides. The lateral carina is continuous 

 with the carinate edge of the sheath of the hindwing. The al)domeu bears dorsally 

 two carinae which converge in front and behind, the anal segment being longer than 



broad and almost regularly pyramid-shaped. The antenna of the imago has a 



more distinct club than in the previous Sections (which is noticeable already in the 

 chrysalis). The upperside of the antenna and the tibiae and tarsi are scaled, but 

 the scales fall off easily in most s])ecies. The arrangement of the tarsal spines is as 

 in the previous Section. The tibiae are never incrassate in the males. The abdominal 

 margin of the hindwing is widened in the males and bears usually a distinct scent- 

 organ. The scalingof the wing is often less dense than iu the previous Section, the 

 wings becoming transparent distally. In a large proportion of the species the first, 

 or the first and second subcostal veins of the forevving are anastomosed with the 

 costa, which does not occur in the other Sections, and the cell of the hindwing is 

 narrow in most cases, the cross-vein D' (in the third cellule) being more or less 

 strongly incurved.* 



The Section is cosmopolitan, like the preceding, but goes less far north and 

 south, being essentially tropical. The mimetic American species are all chara<'terised 

 by red spots situated at the base of the wings on the underside, either on both wings 

 or on the hindwing only. 



* For exi)lan.'ition of ncuration sec diagram after Species No. Ifi'.i, 



