Transitional Form o/'Ornitlioptcra. 207 



character, tlie nearest resemblance to which is found in the 

 male of P. liephivstus so far as [ can discover; it is also 

 nearly as rectangular in the female. 



Expanse of cosla CO millim. ; width of upper wing 57 ; 

 length of hind wing 44-, width i\\ ; length of abdomen or 

 antennae 31 ; of legs, first pair, femur 12, tibia 0, tarsi 12 ; 

 second pair, femur 12, tibia 12, tarsi 15; third pair, femur 11, 

 tibia 13, tarsi 15 millim. 



$ . Primaries : costa equally arciied but more rounded at 

 the apex, the outline insensibly i)assing into the posterior 

 margin, which is not so irregularly curved as in the male ; 

 inner margin nearly a straight line. Wings light fuscous 

 brown; witliin the discoidal cell are faint atomic indications 

 of grey markings somewhat like those of the female of P. hali- 

 phron ; the grey discal rays very indistinct except those 

 enclosing the first and second median nervules (wliich are 

 fairly tiiough faintly defined), broadly separated by the brown 

 margins of the nervules; the pseudoneura are only just 

 visible ; posterior margin witii whitish fringe-lunules. 

 Secondaries slightly darker fuscous brown ; within the cell 

 a faint ochreous rufous-yellow spot close to the discocellular 

 uervules ; four very short narrow rufous-yellow discal marks, 

 the first 6 millim. long, close to the second discocellular 

 iiervule, the second the same length from the cell, the space 

 between the second discocellular and first median nervules 

 broadly incurved and (on the right wing only) enclosing a 

 small brown dot; the third 7 millim. long from the cell, in- 

 dented two thirds its length, enclosing a brown spot (on the 

 right wing) ; the fourth 5 millim. long from the cell, indented 

 (on the right wing only about half the size) ; extremely 

 faint indications of a submargin d band of small spots ; the 

 submedian area of wing is clouded pale reddish ochreous, 

 meeting an anal, angular, ochreous, sublunate spot, from which 

 two rays run partly up the abdominal margin; margin suffi- 

 ciently scalloped, with ochreous fringe-lunules. 



Under surface : primaries the same colour as above; the 

 grey rays and discocellular markings similar but much 

 broader, a brighter ochreous red at the outer margin, greenish 

 grey towards the base and confluent between the second dis- 

 coidal and second median nervules ; the marks within the cell 

 are formed of microscopic atoms, and are divided into three 

 submarks — the Hrst broad, one third of the cell in length, the 

 second very narrow and divided by the second j^seudoneurus, 

 the third or lower one nearly as broad and long as the first 

 and divided by the third pseudoneurus ; the marginal fringe 

 with a nearly continuous row of ochreous lunules. Second- 



