96 MR. F. WALKER ON HETEROCEROUS LEPIDOPTERA 
torum marginibus posticis albis, alis cinereo-albis venis nigro margi- 
natis, anticis nigro quadrimaculatis, posticis nigro unimaculatis. 
Male. Cupreous black, slender, white beneath. Head and thorax with 
white dots. Abdomen with a white line along each side, and with a 
white band on the hind border of each segment. Wings cinereous 
white, with black stripes along all the veins; exterior border black. 
Fore wings with four irregular black spots, two of them subcostal, 
and two near the interior angle; costa very convex. Hind wings with 
a subcostal black spot. Length of the body 9 lines; of the wings 30 
lines. 
This species in its wing-markings has a great likeness to the genus 
Histia. 
52. CycLosIA PIEROIDES, n.s. Mas. Nigra, subtus alba, capite 
thoraceque albo notatis, thorace postico abdomineque glaucescenti- 
ceeruleis, alis albis czeruleo venosis, anticis apud marginem exteriorem 
nigricantibus, posticis subtus flavescentibus. 
Male. Black, white beneath. Head and thorax with white marks. 
Antennz moderately pectinated. Thorax hindward and abdomen pale 
glaucous blue. Wings white; veins blue. Fore wings above with 
the veins broadly bordered with black towards the tips, where the 
disks of the areolets are speckled with black ; underside hardly striped 
with black. Hind wings tinged with yellow beneath, where the veins 
are more black-bordered than on the upper surface. Length of the 
body 8 lines; of the wings 22 lines. 
The resemblance of this species, of C. dissimulata, and of C. ficta, to 
some species of Pieris is very remarkable. 
53. CycLosiA TENEBROSA,n.s. Mas. Obscure rufescenti-purpurea, 
antennis cyaneis subpectinatis, abdomine cyaneo, alis anticis fascia 
exteriore e strigis lineaque submarginali punctulari albis. 
Male. Dark reddish purple. Antennz and abdomen metallic blue, 
the former slightly pectinated. Wings moderately long and broad. 
Fore wings with an exterior upright band composed of longitudinal 
white streaks ; a submarginal line of white points, joiming the band 
by the interior angle ; costa convex ; exterior border straight. Length 
of the body 8 lines; of the wings 24 lines. 
Allied to C. fuliginosa. 
54. CycLosIA DISSIMULATA, n.s. Fem. Alba, capite antico thora- 
cisque suturis nigris, antennis cyaneis subpectinatis, alis fascia exte- 
riore diffusa fascia marginali maculas duas albas includente strigis- 
que intermediis fuscis, anticis fusco venosis, posticis margine interiore 
subtus flavo. 
Female. White. Head in front and sutures of the thorax black. An- 
tenn metallic blue, very slightly pectinated. Abdomen glaucous 
blue, white at the base. Wings with an exterior diffuse brown band, 
