Observations on the Biology of Afrotropical Hesperiidae (Lepidoptera). Part 8. Hesperiinae incertae sedis: Dracaena Feeders
Author
Cock, Matthew J. W.
Author
Congdon, T. Colin E.
Author
Collins, Steve C.
text
Zootaxa
2015
2015-07-13
3985
3
301
348
journal article
10.11646/zootaxa.3985.3.1
0a09b779-2166-4305-9d3e-53effb06f108
1175-5326
253532
46DE9DD6-55E3-4BF5-A2AF-A058A0294A72
Artitropa erinnys radiata
Riley, 1925
Riley (1925)
described
radiata
as a subspecies of
A. erinnys
restricted to Mt. Sagalla in southern
Kenya
. It is more widespread in south-east
Kenya
. VGL Van Someren reared a long series from the Teita Hills (BMNH accessions;
17 specimens
,
Feb 1955
; another
6 in
T.H.E. Jackson collection). SCC has reared it in series from Mt. Sagalla, Teita Hills and Mt. Kasigau. A population at the
Kenya
Coast has been associated with this subspecies in the past by D.G. Sevastopulo, V.G.L. Van Someren and others, but we treat this under
A. erinnys ehlersi
below, as does
Larsen (1991)
.
Larsen (1991)
recognised its similarity to
A. erinnys ehlersi
, suggesting it is likely to be a synonym, whereas
Ackery
et al
. (1995)
suggest that it is ‘almost certainly nothing more than an individual variant of
A. e. vansomereni
’. Although it is closer to
A. e. ehlersi
than
A. e. vansomereni
, we continue to treat it as a valid subspecies pending a more critical assessment.
Food plants.
Under
A. e. vansomereni
above, we have analysed
Van Someren’s (1974)
food plant records for
A. erinnys
‘and subspecies’ and conclude that the record of
D. mannii
applies to
A. e. ehlersi
, and that of
D. afromontana
is more likely to apply to
A. e. vansomereni
but might apply to
A. e. radiata
or both. SCC has reared
A. e. radiata
from
D. fragrans
from the Teita Hills, Mt. Sagalla, and Mt. Kasigau.
Life history, Teita Hills, Mt. Sagalla, Kasigau,
Kenya
.
Under
A. e. vansomereni
above, we analyse the confusion regarding the emerged pupae of
A. e. vansomereni
and
A. e. radiata
from Van Someren’s collection (BMNH dry early stages). It is not clear that any of the material can be reliably associated with
A. e. radiata
.
There is a long series in ABRI from Teita Hills, Mt. Sagalla and Kasigau. The cast skins of the final instar show that there are two pairs of spots on the front (face) of the epicranium, one level with the top of the adfrontals but separated from the adfrontal suture, and the other half way down the adfrontals, most but not all touching the adfrontal suture; there is a lateral spot in most specimens; between the four spots on the face there is a dash near the apex of each adfrontal, and one slightly lower at the apex of the frons. The markings are closest to
Artitropa erinnys ehlersi
(Figure 28.1–2), but the streak on the frons is usually stronger in ssp.
radiata
. The pupae mostly have little in the way of markings, beyond an arc to the rear of the thorax, but a few are more heavily marked.