sp. nov.
Diagnosis. The new genus differs from other genera in this
tribe by the following combined characters: small to medium sized,
depressed and ovoid (Figure 7, a, b, i, j); head with a longitudinal
reddish broad stripe from crown apex to posterior margin of pronotum;
subgenital plate without macrosetae near base; style with numerous
microsetae in middle part (outer margin); connective Y-shaped; aedeagus
dorsal apodeme well developed, without process on base.
Description. Length of male 3.5 to 3.7 mm, female 3.5 to 3.6
mm. Dorsum brown-yellowish; head with longitudinal reddish broad stripe
from crown apex to posterior margin of pronotum. Forewing
semitransparent; veins pale white; apical cells infuscated; forewing
clavus with reddish stripe, wave-shape; brochosome area with two small
dark spots; MP”+CuA’ vein with black spot on apex (Figure 7, a, b, i,
j). Face yellow. Body flat in lateral view (Figure 7, b, j); crown
produced; coronal suture distinct, not extended beyond the midline
length of crown (Figure 7, a), or indistinct (Figure 7, b); Head
subequal to pronotum width, length of crown at midline slightly longer
than interocular width; scutellar suture distinct, nearly reach to
sides; forewing apex rounded, the 2nd apical cell subequal to 4th apical
cell; the 3rd apical cell smallest, triangular; hind wing R and MP veins
directly connected at apex (Figure 7, d, l).
Male
genitalia. Pygofer side with posterior margin rounded and with two
clusters of setae on posterior and ventral parts; without macrosetae and
process (Figure 7, c, k);
subgenital plate gradually narrowed to apex, without big macrosetae
at
base; apex forked, or not forked (Figure 7, c, k); style slender, with a
dense coverage of microsetae on outer margin; connective Y‒shaped, with
central lobe developed (Figure 7, f, n); aedeagus with
dorsal
apodeme well developed, preatrium weak; shaft slender, with pair of
symmetrical processes; phallotreme apical (Figure 7, h, o).
Remarks. The new genus is
similar to Typhlocyba in coloration and male genitalia but can be
distinguished from the latter by the absence of basal macrosetae on the
subgenital plate and presence of dense microsetae at the midlength of
the paramere.
Etymology. This generic name is feminine, formed by the Latin
word “Subtilissimus ” which means “slender or fine”, referring
to its aedeagal shaft in lateral view.
Distribution.China (Yunnan).
Subtilissimia
fulva Yan & Yang sp. nov.
http://zoobank.org:act:BFCDAE7D-C5E4-4896-A841-E3BA4A559DE3
Figure 7, a–h
Material examined. Holotype, ♂, Mengla County, Yunnan Province,
608 m, 12 May 2015, Coll. Bin Yan. Paratypes, 1♂, 3♀♀, same data as
holotype; 1♂, Mengla County, Yunnan Province, 604 m, 16 Nov. 2018, Coll.
Likun Zhong.
Description. Length of male 3.5 to 3.7 mm. Coronal suture
indistinct (Figure 7, a). Forewing clavus with deeply reddish stripe,
elongated to apex
(Figure
7, a, b). Male pygofer side slightly convex on upper posterior margin
(Figure 7, c); style slender, parallel-sided (Figure 7, f); aedeagal
shaft tubular, with pair of lateral processes
arising near mid length, extended
distally and slightly divergent from shaft, almost reaching shaft apex
(Figure 7, g, h).
Etymology. The species name was derived from the Latin
adjective “fulvus” = reddish-yellow, tawny, amber-coloured, which
refers to the coloration of the longitudinal patch on the crown.
Remarks. The new species is very similar toSubtilissimiapellicula sp. nov.in size and coloration, but differs in having the aedeagal processes
arising near the shaft mid length, longer,
and
not forked near the apex in lateral view (Figure 7, g, h).
Distribution.China (Yunnan).
SubtilissimiapelliculaYan & Yang sp. nov.
http://zoobank.org:act:2B04D9D2-665D-4A6D-B9C9-E75F3171D144
Figure
7, i–p
Material examined.Holotype, ♂, Simian Mountain,
Chongqin,
1100 m, 12 Sep. 2017, Coll. Bin Yan. Paratypes, 3♂♂, same data as
holotype.
Description. Body length 3.5 to 3.6 mm. Coronal suture
distinct, short (Figure 7, i). Forewing with reddish stripe on hind
margin, not reaching clavus apex (Figure 7, i, j). Male pygofer side
rounded on posterior margin (Figure 7, m); style slender, apex sharp and
slightly curved (Figure 7, n); Aedeagus tubular in ventral view, with
membranous sides; shaft with pair of dorsal processes arising near apex,
curved dorsally, forked near base (Figure 7, o, p).
Etymology.The
species name was derived from the Latin noun “pellicula ” =
“small skin”, which refers to a membranous structure on the shaft. It
should be treated as a noun in apposition
Remarks. The new species is very similar to Subtilissimia
fulva sp. nov. in size and coloration, but differs in having
the aedeagal processes arising near the shaft apex, curved dorsally, and
forked near the apex in lateral view (Figure 7, o, p).
Distribution. China (Chongqin).