Revision of the leafhopper tribe Krisnini (Hemiptera: Cicadellidae: Iassinae) of the Indian subcontinent
Author
Viraktamath, C. A.
text
Zootaxa
2006
1338
1
32
journal article
10.5281/zenodo.174332
5b8953f7-059d-4f6a-9bba-dddc1e4b2ddb
1175-5326
174332
Krisna bakeri
sp. nov.
Figs 22, 30
,
32, 36–46
Green to greenish ochraceous with red tinge.
Vertex with rounded anterior margin between eyes, medially slightly longer than next to eyes. Frons slightly depressed beneath anterior margin with coarse sculpturing.
Hind
wings milky white. Male abdominal terga 2, 3 and 4 with apodemes (
Figs 38–40
). Male eighth sternite widened in distal half, lateral angles of hind margin rounded, caudal margin almost straight with several spines on ventral surface.
Male genitalia
: Ventral pygophore process broad in basal 0.33, narrowed and of uniform width in middle 0.33, then broadened gradually and narrowed to pointed apex, apical area with a few longitudinal rugae, dorsal margin of process in some specimens serrated at midlength. Style of
type
1. Aedeagus with preatrium well developed, shaft broadest at basal 0.25, then narrowed to apex, ventral margin rather straight, dorsal margin concave, with serrated margin, short rugae, and denticles.
FIGURES 20–31.
Species of
Krisna
. 20–26. Head and thorax, profile: 20.
K. magna
Baker
, from Malaysia; 21.
K. strigicollis
(Spinola)
; 22.
K. bakeri
sp. nov.
; 23.
K. megha
sp. nov.
24.
K. raja
sp. nov.
; 25.
K. varia
sp. nov.
; 26.
K. walayari
sp. nov.
; 27–31. Female seventh sterna: 27.
K. megha
; 28.
K. kirbyi
(Kirkaldy)
; 29.
K. strigicollis
; 30.
K. bakeri
; 31.
K. varia
.
FIGURES 32–40.
Female second pair of gonapophysis of species of
Krisna
: 32.
K. bakeri
; 33.
K. megha
; 34.
K. strigicollis
; 35.
K. varia
. 36–40. Male abdominal apodemes of
Krisna bakeri
sp. nov.
36–37. Second and third sternal apodemes; 38–40. Second to fourth tergal apodemes.
Female genitalia
:
Hind
margin of seventh sternite broader than long, rather rectangular, hind margin slightly produced in middle. Second pair of gonapophysis with smooth area between distal and middle teeth, apex rather broadly rounded, without subapical ventral notch.
Measurements
: Male
10.40 mm
long (10.30–10.70
)
,
2.55 mm
wide across eyes, 3.15 (3.10–3.30) mm wide across hind margin of pronotum. Female
11.40 mm
long,
2.70 mm
wide across eyes,
3.30 mm
wide across hind margin of pronotum.
FIGURES 41–46.
Male
Krisna bakeri
sp. nov.
41. Eighth sternite;42. Ventral pygophore process. specimen from Nepal; 43. Same from Dehradun; 44. Apex of apophysis of style (type 1); 45. Aedeagus, lateral view, 46. Aedeagus, caudal view.
Material examined
:
Nepal
:
Holotype
ď, Katmandu,
12.vi.1978
, V.K. Thapa (
UAS
).
Paratypes
:
Nepal
: 3 ď, 1 Ψ, data as for
holotype
(
BMNH
,
IARI
,
UAS
); 3 Ψ, Katmandu, Kokari-Takha,
28.x-14.xi.1978
, V.K. Thapa (
UAS
); 14 ď, 1Ψ, near Simra, Adhobhar, collected on 25 (6 ď), 27 (4 ď), 28 (4 ď, 1Ψ),
viii.1967
, Canadian
Nepal
Expedition; 4 ď, 1Ψ, Katmandu: Godavari, 6000’ (
1820 m
),
15.vii
(1 ď),
24.vii
(1 ď),
31. vii
(1Ψ),
30.viii
(2 ď), 1969, Canadian
Nepal
Expedition (
CNC
). Other material:
Nepal
: 4 nymphs from Bhartpur, Birganj (
CNC
);
India
: Uttaranchal: 1 ď, Dehradun,
27.iv.1975
, C.A. Viraktamath; West Bengal: 1 Ψ,
8 km
E Kalimpong,
1768 m
,
29.x.1981
, C.A. Viraktamath (
UAS
).
Remarks
:
K. bakeri
resembles
K. strigicollis
but in addition to differences in the male genitalia, it differs in lacking the black spots on the anterior margin of vertex, anterior rim of the head and ocelli are placed a distance more than half own diameter away from the adjacent eye; but in
K. strigicollis
they are much closer. The male third sternal apodemes are short and broad whereas in
K
.
strigicollis
they are widely separated, and reach anteriorly the second segment.