CHA RAXES. By Dr. 0. Aurivillius. 
131 
Ch. bohemanni Fldr. (33 a). Both wings above in the basal part glossy blue; on the forewing the blue bohemanni. 
colour reaches to the base of vein 3 and is distally out off straight but obliquely, on the hindwing it extends 
far beyond the middle; before the apex of the forewing two white subapical spots; the apical area is otherwise 
unicolorous black in the <U but has in the $ a broad white transverse band, placed close beyond the blue 
colour and extending from the costal margin to vein 1. On the hindwing the costal and distal margins are broadly 
black, the latter with a fine blue marginal line, partly whitish in the 9, and blue submarginal dots; the inner 
margin grey to vein 2. The under surface is grey to brown-grey with black, white-edged transverse streaks, 
which on the hinclwing do not form a continuous line. German South-West Africa to the Congo and east¬ 
wards to Massailand. 
Ch. smaragdalis Btlr. Both wings above from the base to the apex of the cell black with greenish or smaragia- 
bluish reflection, then follows in the a blue half-band, about 10 mm. in breadth, between the hindmai’gin ” S- 
and vein 2 or 3 and in each cellule from 3—7 two very widely separated spots, all blue except the distal 
ones in cellules 6 and 7; in the $ there is in the middle a white transverse band, 7 mm. in breadth, run¬ 
ning obliquely from the costal margin towards the hinder angle and reaching vein 1; the outer row of spots, 
which runs almost parallel with the distal margin in the (J, is almost identical in the 9- The hindwing has 
behind the apex of the cell a blue transverse band 12 ($)—15 (9) mm. in breadth and is black at the distal 
margin with blue-white submarginal spots and marginal line. The under surface is dark grey-brown, marked 
almost as in bohemanni. Mger to Angola and Uganda. — butleri Rothsch. (31 a; by mistake as smaragdalis). butleri. 
The blue transverse band on the upperside of the hindwing is narrower and everywhere completely separated 
from the blue marginal line. Sierra Leone to the Gold Coast. 
Ch. monteiri Stgr. (33 a). The <$ is very similar above to that of smaragdalis , only differing in having monteiri. 
the distal blue spots in cellules 2—7 of the forewing much larger and sagittate and the transverse band on the 
hindwing anteriorly narrower and posteriorly completely united with the marginal line. Fore wing beneath 
light grey-blue at the base and before the distal margin. In the 9 the forewing is black-brown above, with 
broad white transverse band and two white subapical spots; the hindwing above umber-brown, towards the distal 
margin somewhat lighter and with 8 large, angled, blue-centred, black submarginal spots and a black marginal 
line, thickened between the veins. Only occurring on the island of St. Thome. 
Ch. pythodoris. Distal margin of the hindwing uniformly rounded without tail-appendages, but shortly 
dentate at the extremities of the veins. Abdomen white above. Both wings above black (only the fore wing 
at the base of the costal margin brownish) with broad blue and white transverse band, which on the hindwing 
almost reaches the base, but is distally irregularly dentate and only extends a little beyond the apex of the 
cell. The transverse band of the forewing is similar to that of smaragdalis but begins at the middle of the 
hindmargin, forms large spots in la and lb and is then broken up into two spots each in cellules 2-—7. the 
distal ones blue and the proximal nearly white; the proximal spot in cellule 4 is placed much nearer to the base 
than the rest; forewing without marginal spots; hindwing with a row of small white or bluish submarginal 
dots, but its marginal spots indistinct or absent. Under surface almost uniform yellow-brown with fine black 
transverse streaks. - — pythodoris Heu\ has the black marginal band on the upperside of the hindwing narrower, pythodoris. 
about 10mm. in breadth at vein 6; the blue transverse band of the forewing always undivided in cellules la 
and lb. Angola and the southern part of the Congo region. — In nesaea Smith the black marginal band on nesaea. 
the upperside of the hindwing is broader, about 14 mm. in breadth at vein 6; the blue spot in cellule lb of the 
forewing usually more or less divided into two spots. German and British East Africa. — Both forms are very rare. 
Ch. nandina Rothsch. : forewing above black, behind the middle of the hindmargin with an oblong nandina. 
blue spot in la, 2—4 blue spots in lb and then with 2 irregularly curved transverse rows of white or bluish white 
spots, the proximal row composed of four spots in cellules 2—5 and the distal of six in cellules 2—7; small yellow¬ 
ish marginal spots. Hindwing above between veins 2 and 7 with a posteriorly pointed, sharply defined blue 
median band, in the middle about 5 mm. in breadth, accompanied by a whitish spot in cellule 7; behind the middle 
runs an S-shaped curved row of 6 small blue spots and near the distal margin a curved row of 6 or 7 bluish 
dots; the marginal lunules themselves are yelloAvish; the tails well developed, about 5 mm. in length. The under 
surface agrees almost exactly with that of cithaeron. The 9 closely resembles that of xiphares, but differs in 
having a transverse row of 8 white spots behind the middle of the forewing above and in the smaller, ochre- 
yellow median spot of the hindwing. British East Africa in the Kikuyu district; rare. 
Ch. xiphares Cr. (31c). $: the forewing marked almost exactly as in nandina , but the spots blue with the xiphares. 
exception of the first two in the distal row; the basal part is tinged with blue, but usually not so distinctly as 
in the figure. The blue median band of the hindwing is placed further distad, is broader and distally deeply 
incised at the veins or even almost broken up into spots; small blue submarginal dots and blue or yellowish 
marginal spots. The 9 is very different from the <$; the forewing is brown-black without blue markings, but 
with four white discal spots (in the middle of cellule 2, before the middle of 3 and at the base of 4 and 5) 
