Astatometopon sakakibarai gen. & sp. nov., a montane planthopper from Chile (Hemiptera: Fulgoroidea: Delphacidae)
Author
Campodonico, Juan F.
text
Acta Entomologica Musei Nationalis Pragae
2017
2017-06-30
57
1
1
10
journal article
7592
10.1515/aemnp-2017-0053
3e393985-bf0f-47ac-9ec2-677957e703d2
0374-1036
4643886
16AAF1F8-E042-4DA8-92BE-3FD433A80425
Astatometopon
gen. nov.
(
Figs 1–32
)
Type
species.
Astatometopon sakakibarai
sp. nov.
, here designated.
Description.
General body shape
(
Figs 1–5
) oblong, slightly more than twice longer than wide.
Head
(
Figs 1–11
) wider than or subequal in width to pronotum. Macrocoryphe (
Figs 1–2, 4–5
) quadrangular, wider than long; apex rounded; anterior side and posterior margin almost equal in width; posterior margin, in dorsal view, medially positioned at anterior half of eyes; coryphe composed by two pentagonal cells enclosed by carinae. Fastigium (
Fig. 3
) smoothly curved. Superior side of eumetope (
Figs 6–11
) wider than its inferior margin; carinae of metope fading on fastigium, then subparallel and converging on lower margin of eumetope; carinae sometimes weak, absent, or reduced to a single carina. Clypeus (
Figs 6–11
) tricarinate. Rostrum reaching mesocoxae. Antennae (
Figs 6–11
) with scape shorter than pedicel.
Thorax
(
Figs 1–5
). Pronotum (
Figs 1–2, 4–5
) subtrapezoidal, wider posteriorly; posterior margin bisinuate; median carina distinct; lateral carinae curved laterally behind eyes, not reaching posterior margin. Mesonotum (
Figs 1–2, 4–5
) with median and lateral carinae distinct; median carinae fading at scutellum; scutellum transversely striated.
Legs.
Metatibiae (
Figs 14–15
) with one lateral tooth near tibiofemoral articulation and another one near middle of its length. Calcar (
Fig. 14
) without teeth on its hind margin.
Male abdomen.
Sternum I (
Fig. 16
) with apodemes short and directed dorsocaudad. Pygofer (
Figs 17–18
), in lateral view, higher than long; opening with no ventral processes; diaphragm strong, with armature. Segment X (
Figs 19–21
) wider than long, with pair of posteroventral processes. Segment XI (
Figs 19–21
) longer than segment X. Phallus (
Figs 21–24
) asymmetrical, with conspicuous porrect process arising from base. Suspensorium (
Figs 21–24
) ring-like, projected caudally over phallus. Styles (
Figs 25–26
) short, not surpassing height of diaphragm, narrowed at apex.
Differential diagnosis.
See discussion.
Etymology.
Combination of the Greek words αστατος (=
astatos
, inconstant) and μέτωπον (=
metopon
, forehead) in reference to the inconstant carination of the metope in the eumetope. Gender neuter.