206 
CRENIS. By Dr. C. AuRiviLLrus. 
howensis. 
natalensis. 
garega. 
amazoula. 
umbrina. 
trimem. 
consors. 
madagas- 
cariensis. 
C. howensis Stgr. (48g; $ as umbrina) is very near to C. boisduvali and beneath agrees almost entirely 
with it. Above the $ differs in a broad blackish longitudinal band at the costal margin of the forewing 
and the $ in its larger size and the lighter yellow-brown ground-colour of both wings; in consequence of the 
lighter ground the black colour at the costal margin of the forewing in the $ stands out more sharply than 
in boisduvali. Madagascar. 
C. natalensis Bdv. In the <$ both wings are light brownish above with strong yellowish gloss and be¬ 
fore the distal margin broadly yellowish; the black submarginal streaks are distinct, likewise the postdiscal 
dots, which, however, are absent or indistinct in cellules 2—4 of the forewing; underside of the forewing 
light grey-yellow, at the apex grey with sharply prominent black postdiscal dots in (4) 5—8, before these 
somewhat darkened, but not spotted with black; hindwing light grey beneath with ochre-yellow or brownish 
transverse lines and dull yellow rings to the eye-spots. The $ differs considerably from the <$, the apex 
of the forewing above being deep black as far as vein 2 with two oblique transverse rows of yellow spots, the 
discal row consisting of two spots in cellule 3 and at the apex of the cell and the subapical of three spots 
in 5—7; in this it strongly recalls the ^ of C. trimeni (49 a). From C. boisduvali natalensis differs in its larger 
size, lighter upper surface with distinct postdiscal dots on the forewing and especially in the much more 
weakly marked and more uniform under surface. Natal and Transvaal. 
C. garega Karsch (= ansorgei Rothsch. & Jord., natalensis Hpffr.) “agrees in the markings of the upper 
surface with C. naialensis Bdv., except that the broad dark brown costal border of the forewing, exclosing 
lighter spots, is narrower and terminates posteriorly at the 3rd median (= vein 4) almost in a straight line; 
the under surface of the hindwing shows a more striking difference inasmuch as the pupilled rings of the 
dark undulate marginal line are removed further proximad than is the case in C. natalensis Bdv. In addition 
the fore wing is narrower, its shape different, the apex being more distinctly truncate, the hinder angle in par¬ 
ticular running out into more of a point, the distal margin more rounded and not undulate”. The sexes are 
coloured almost alike; the $ has like the $ a light apical macular band on the forewing, which hi the $ 
is interrupted; in the latter there is further in cellule 3 a large, light ochre-yellowish spot; the under surface 
of the hindwing is very slightly marked with brownish, not blackish. Cameroons, Mozambique, Uganda, Abys¬ 
sinia. 
C. amazoula Mob. is a third species nearly allied to natalensis. In the the wings are light ochre- 
yellowish above with narrow dark marginal band, reaching the submarginal dots, and blackish longitudinal 
stripe at the middle of the costal margin of the fore wing; in the $ both wings are darkened in the basal 
part and the forewing at the apex of the cell blackish with a yellow transverse spot; the under surface of the 
hindwing has the ground-colour light grey, uniform or darkened at the base, with the rings of the eye-spots 
slightly ochre-yellowish; the underside of the forewing in the $ without black markings, in the $ broadly 
blackish at the costal margin. Madagascar. 
C. umbrina Karsch, like the last three species, has distinct black postdiscal dots in cellules 1 b, 4—-7 
on the fore wing above, but the ground-colour of the upper surface is much lighter, light grey or light clay- 
coloured ; the apex of the forewing is grey-brown above and has in the the same light yellow spots as in the 
$ of natalensis or trimeni (49 a); the under surface of the forewing has distinct black transverse spots beyond 
the apex of the cell and the hindwing a whitish ground-colour with light grey or brownish (not ochre-yellow) 
markings. Togoland, Unyoro, Uganda. 
C. trimeni Auriv. (49 a) is likewise similar to the preceding species and especially to C. natalensis, 
but is at once distinguishable from them all by the light blue-grey ground-colour and the very large, thick, 
light orange-yellow rings of the eye-spots on the hindwing beneath. In the $ the black and yellow spots in the 
apical part of the forewing are much more indistinct than in the $. Congo, Angola, German South-West 
Africa, Cape, Delagoa Bay. 
C. consors Rothsch. & Jord. nearly approaches the preceding species. The sexes are quite alike and 
can most easily be distinguished from trimeni by the darker blue-grey ground-colour of the underside of the 
hindwing, while the eye-spots have smaller rings, only basally ochre-yellowisli. Angola, Zambesi. 
C. madagascariensis Bdv. (49 a) differs from all the other species in having both wings bright yellow- 
brown above, with the apical half of the forewing black; beneath the hindwing and the apex of the forewing 
are whitish grey and the former has no transverse lines and only very indistinct grey eye-spots. The $ is larger 
and otherwise only differs from the A hi bearing 2 or 3 small yellow subapical spots in cellules 6—-8 of the 
forewing. Madagascar. 
6. Subfamily: Eurytelinae. 
The genera of this subfamily may be known at once by having vein 12 of the forewing inflated at the 
base into a large ellipsoid bladder. 
Here belong small to medium-sized butterflies with broad, rounded wings, at the distal margin undulate 
or occasionally strongly dentate or angled, which are quite differently marked in the different genera. 
The larvae, as far as they are known, have two very long, finely branched spines on the upperside 
of the head and 4—6 short prickly spines on each segment of the body. Pupa with two short, obtuse 
