Systematics, revisionary taxonomy, and biodiversity of Afrotropical Lithocolletinae (Lepidoptera: Gracillariidae)
Author
Prins, Jurate De
Author
Kawahara, Akito Y.
text
Zootaxa
2012
2012-12-20
3594
1
1
283
http://dx.doi.org/10.11646/zootaxa.3594.1.1
journal article
20704
10.11646/zootaxa.3594.1.1
79af20a5-77f9-4240-ac45-e27fab775ca1
11755334
6052126
B00799F3-F397-438C-B1E1-A8440E636921
34.
Phyllonorycter caudasimplex
Bland, 1980
(
Figs 75
,
328
,
387
)
Phyllonorycter caudasimplex
—
Bland (1980: 31–33
, figs; 1e, 2c),
Dall’Asta
et al
. (2001: 33)
,
De Prins & De Prins (2005: 277)
,
Guillermet (2011: 118–120
; figs a–d, pl. 3, fig. 2).
Diagnosis.
P. caudasimplex
is indistinguishable in wing pattern from
P. trochetellus
and
P. ruizivorus
. Species in this group show the main diagnostic differences in male genitalia. Male genitalia of
P. caudasimplex
are unknown. Beside
P. caudasimplex
female genitalia of two
leucaspis
group species are known: those of
P. leucaspis
, and
P. ruizivorus
. Diagnostic features of female genitalia are defined by measuring the ratio of length of apophyses and by observing the shape of antrum. Posterior apophyses in
P. leucaspis
are longer than anterior apophyses, in
P. caudasimplex
both apophyses are about of equal length and in
P. trochetellus
anterior apophyses are 1.2× longer than posterior apophyses. Antrum in
P. caudasimplex
broad rectangular shaped, almost as long as broad, antrum in
P. trochetellus
ca. 4× broader than long and in
P. leucaspis
it is small and rounded. Furthermore, it is the only species recorded from West Africa belonging to the
leucaspis
group. A very large geographical distance separates this species from any other member of this group and the unique shape of antrum suggests that this species distantly related to other species in the
leucaspis
group. No doubt that the discovery of the male will help to resolve both the diagnosis and the position of
P. caudasimplex
in the
leucaspis
group.
Material examined.
Holotype
:
♀
, [1] ‘Holotype’; [2] ‘
Nigeria
:
Ile –Ife
/ W State
30 Dec 1971
/ Col.
J. T. Medler’
; [3] ‘Gen[italia]. slide / B. 183.’; [4] ‘Brit[ish]. Mus[eum]. / 1979-377’; [5] ‘B.[ritish] M.[useum] ♀ / Genitalia slide / No. 21279’; [6] ‘Type /
Phyllonorycter
/
caudasimplex
/ Bland.’, in
BMNH
.
Redescription.
Adult
(
Fig. 75
). Forewing length: 3.2 mm.
Head:
Vertex tufted with ochreous brown piliform scales; frons smooth, shiny white. Labial palpus white. Antenna slightly shorter than forewing, flagellomeres lightly ringed by sequence of fuscous and pale ochreous brown scales, pedicel with pale ochreous shine, scape shiny white anteriorly and ochreous brown posteriorly.
Thorax
: Shiny white anteriorly and pale fuscous posteriorly. Tegula ochreous brown anteriorly and white posteriorly. Forewing ochreous brown with white markings, consisting of short basal streak, two fascia, two costal and one dorsal strigulae; basal streak oblique and directed towards costa, finely edged posteriorly, first fascia at 1/5 oblique, directed towards apex, tapering, gently curved towards apex becoming obsolete before costa; second fascia at 1/2, broadest at dorsum, basal edge oblique, apical edge runs almost straight, second fascia constricts above midline of forewing before costa and at subcostal sector it broadens to half as broad as at dorsum, edged on both sides, first dorsal strigula and first costal strigula at 3/4 opposite each other, meeting above midline of forewing, separated by irroration of black scales; first dorsal strigula triangular shaped, bigger than first costal strigula, both strigulae edged basally; second costal strigula small, obscure, white, surrounded by dark fuscous and brown scales scattered in termen and tornal sectors at apical part. Hindwing fuscous with long, light fuscous fringe. Legs white with mixture of fuscous and brown scales.
Male genitalia
. Unknown.
Female genitalia
(
Fig. 328
). Papillae anales connected dorsally, rounded, longer than wide, weakly sclerotized, covered with scarce short setae, basal bar very narrow, imperceptible at preparation. Posterior apophyses sclerotized, slender, rather long, reaching posterior margin of segment VII. Segment VIII weakly sclerotized, weakly connected with segment VII. Anterior apophyses slightly shorter than posterior apophyses, slender, pointed, reaching posterior 1/3 of segment VII. Ostium bursae located at posterior edge of segment VII, antrum straight short tubular shape, sclerotized, ductus sinusoid at initial part, ductus bursae broadly tubular, smoothly merging with corpus bursae without visible transitional marking; ductus bursae + corpus bursae ca. 1.5× length of segment VII; signum on corpus bursae absent.
Biology.
Habitat not known.
Host plant(s).
Unknown.
Note
: The records taken from labels of reared specimens from
Ruizia cordata
Cav.
and
Dombeya acutangula
Cav.
[
Malvaceae
] at the BMNH should be excluded from the host list of
P. caudasimplex
, since the specimens which are referred to in
De Prins & De Prins (2005: 277)
revealed that it is a misidentification. Specimens belong to the species
P. ruizivorus
sp. n.
which is described in this publication.
Flight period.
Specimens were collected in late December.
Distribution.
(
Fig. 387
). Known only from the type locality in Nigeria (
Bland 1980: 25
, 33).
Note: The record from Reunion Island (
Guillermet 2011: 119
, figs a–d, pl. 3, fig. 2) is misidentidication of
P. ruizivorus
sp. n.