Stirellus picinus ( Berg, 1879 )

Duan, Yani, Zhang, Yating & Dietrich, Christopher H., 2019, Six new species of Stenometopiini (Hemiptera: Cicadellidae: Deltocephalinae) with redescription of additional species and new distributional records, Zootaxa 4603 (2), pp. 201-240 : 217-218

publication ID

https://doi.org/ 10.11646/zootaxa.4603.2.1

publication LSID

lsid:zoobank.org:pub:1EAEACC5-592B-4F5B-B4EF-AD201B0F7A35

DOI

https://doi.org/10.5281/zenodo.5326034

persistent identifier

https://treatment.plazi.org/id/039087CC-FF92-FF88-6F91-FC85FDA2DE9A

treatment provided by

Plazi

scientific name

Stirellus picinus ( Berg, 1879 )
status

 

Stirellus picinus ( Berg, 1879) View in CoL n. rec.

( Figs 13–14 View FIGURE 13 View FIGURE 14 )

Athysanus picinus Berg, 1879: 263 View in CoL .

Stirellus picinus, Linnavuori, 1959: 322 View in CoL .

Description. Length. Male: 3.1–3.6mm; female: 4.2–4.6mm.

Coloration. General color usually from dark brown to yellow green with dark brown maculae ( Fig. 13 View FIGURE 13 A–E). Crown with marks on vertex that are variable, usually with large triangular anterior pair and smaller posterior pair but posterior pair absent in some specimens. Pronotum, mesonotum and scutellum with or without dark brown maculae ( Fig. 13 View FIGURE 13 A–D). Frontoclypeus ochraceous with fuscous arcs ( Fig. 13F View FIGURE 13 ). Forewing translucent veins pale yellow and areas between veins variably infused with dark brown ( Fig. 13 View FIGURE 13 A–E). Femora and tibiae with dark brown marks ( Fig. 13E View FIGURE 13 ). Abdominal sternites variably infused with dark brown ( Fig. 13G View FIGURE 13 ).

Morphology. Head wider than pronotum, subconical, anterior margin rounded to face ( Fig. 13 View FIGURE 13 A–E). Crown nearly as long as or slightly longer than width between eyes ( Fig. 13 View FIGURE 13 A–D). Anteclypeus slightly tapered, extending beyond normal curve of genae ( Fig. 13F View FIGURE 13 ). Pronotum median length nearly as long as median length of crown. Mesonotum and scutellum nearly as long as pronotum ( Fig. 13 View FIGURE 13 A–D). Forewing macropterous, usually exposing apex of abdomen in female ( Fig. 13 View FIGURE 13 A–E).

Male genitalia. Pygofer side with few macrosetae dorsally, dorsal margin slightly concave distally, posterior margin rounded ( Fig. 14A, B View FIGURE 14 ). Subgenital plate convex laterally, macrosetae uniseriate laterally ( Fig. 14D, E View FIGURE 14 ). Style apophysis digitate, short, laterallylaterally curved; preapicalpreapical lobelobe formingforming rightright angleangle ( Fig. 14 View FIGURE 14 F–H). ConnectiveConnectiveConnective Y-shaped, stem broad and nearly as long as arms ( Fig. 14I View FIGURE 14 ). Aedeagal shaft curved strongly dorsad near base, relatively short and broad in lateral view, slightly curved anterad beyond midlength, apex tapered to blunt tip, apex broadened and bifid in dorsal view ( Fig. 14 View FIGURE 14 J–L).

Female. Seventh sternum produced and tapered to shallowly bilobed apex ( Fig. 13G View FIGURE 13 ).

Material examined. 2ƋƋ, 3♀♀, Argentina: Misiones Rt 211 36 km SE jct Rt 12, 450m, 26° 55′ 55" S 54° 43′ 52" W, 5 i 2008, coll. C.H. Dietrich, vacuum, AR5-1 ( INHS) GoogleMaps ; 1Ƌ, Argentina: Misiones Pto. Iguazú, Viejo Amer. Campgd , 200m, 25° 37′ 19" S 54° 32′ 52" W, 7 i 2008, coll. C.H. Dietrich, sweeping, AR7-2 ( INHS) GoogleMaps ; 1Ƌ, 1♀, Argentina: Corrientes, P.N. Mburucuyà 1.8 km W Campgd, 80m, 28° 1′ 11" S 58° 3′ 18" W, 8 i 2008, coll. C.H. Dietrich, vacuum, AR9-4 ( INHS) GoogleMaps ; 1Ƌ, Brazil: Parana nr. Ponta Grossa , 8 ii 1974, coll. S.G. Turnipseed, 969 ( INHS) ; 1Ƌ, Costa Rica Punt 7km, E Las Juntas , 5 ix 1998, coll. C.W. & L.O’Brien ( INHS) ; 1♀, British Virgin Is. Guana Island , 16 x 1993, coll. C. Parilet & J. Cryan ( INHS) .

Distribution. Argentina; Bolivia; Brazil; Colombia; Costa Rica; Virgin Islands; Honduras; Panama; Suriname; Venezuela.

Remarks. This species is here recorded from the British Virgin Islands (Guana Island) for the first time. It is similar to S. mexicanus , but it can be distinguished by the shape of the hind margin of the female seventh abdominal sternum and the apex of the aedeagal shaft.

INHS

Illinois Natural History Survey

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hemiptera

Family

Cicadellidae

Genus

Stirellus

Loc

Stirellus picinus ( Berg, 1879 )

Duan, Yani, Zhang, Yating & Dietrich, Christopher H. 2019
2019
Loc

Stirellus picinus, Linnavuori, 1959 : 322

Linnavuori, R. 1959: 322
1959
Loc

Athysanus picinus

Berg, C. 1879: 263
1879
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