Propylaea quatuordecimpunctata · juodasiūlė boružė «Propylaea quatuordecimpunctata · juodasiūlė boružė^Thumbnails»Propylaea quatuordecimpunctata · juodasiūlė boružė«Propylaea quatuordecimpunctata · juodasiūlė boružė^Thumbnails»Propylaea quatuordecimpunctata · juodasiūlė boružė

Propylaea quatuordecimpunctata · juodasiūlė boružė

  • Propylea quatuordecimpunctata
  • 14-spotted ladybird beetle
  • Vierzehnpunkt-Marienkäfer, Schachbrett-Marienkäfer
  • juodasiūlė boružė
  • rakstainā mārīte
  • biedronka wrzeciążka

Randamos visoje Europoje nuo piečiausios dalies iki pat poliarinio rato, taip pat Azijoje. Gyvena tiek žemumose tiek ir aukščiau - iki subalpinės zonos. Plačiausiai paplitusi boružių rūšis Vidurio Europoje. Kūnas 3,5 - 4,5 mm ilgio ir įvairių spalvinių variantų. Paprastai vabalai yra šviesiai arba ryškiai geltonai ir turi po 7 juodus, beveik kampuotus taškus ant antsparnių. Taškai gali būti ištęsti ir susijungę tarpusavyje taip, kad geltonos spalvos beveik nelieka arba atrodo, kad vabalas yra su geltonais taškais. Antenos ir kojos - rusvai geltonos.

This species is native and widespread in the Palearctic north to the Arctic Circle. It is a common species in Europe, North Africa, large parts Asia, Korea and Japan. The species is adventive and widespread in North America. Propylea quatuordecimpunctata feeds on aphids, Aleyrodidae, Coccoidea, and on the larvae and eggs of some beetles and butterflies. The females lay about 400 eggs.

They have a great variety of color forms. The pronotum is whitish or pale yellow, with four to eight black spots. The antennae and legs are yellowish-brown.

Most of the text below is from now defunct site www.ukbeetles.co.uk, where it was published under a CC BY 4.0 License.

This is a very variable species but most specimens seen will be of the typical form with the central ‘anchor’ mark. At least 7 varieties have been named and there is a very rare melanic form. There are some very striking dark forms worth a look online. 3.5-4.5 mm. Elongate and strongly rounded, ground colour yellow, with very variable black marks but the typical form is by far the most abundant. Upper surface glabrous. Head yellow with the base black, finely punctured and microsculptured. Frons yellow in the male, in the female there is a dark spot in the centre. Clypeus narrowed in front of eyes. Mouthparts and antennae yellow. Antennae longer than the head width, with a 3-segmented club. Segments 3-9 elongate, terminal segment rounded at apex. Mandibles bidentate at tips. Pronotum transverse and broadest at the rounded hind angles. Hind margin rounded and weakly sinuate. Side margins weakly edged and front angles produced forward. Surface finely punctured and microsculptured, with 6 dark marks which are usually fused to some extent; often into a single characteristic mark. Scutellum triangular, very finely punctured and microsculptured. Elytra punctured and shiny, the puncturation stronger than that on the pronotum, without microsculpture. Typical pattern of dark marks distinctive, variable but with the suture dark, a character shared only with Tytthaspis. Margins explanate laterally but this narrows towards the apex. Underside mostly black but the meso- and metepimera are conspicouosly white. Entire surface with sparse pale pubescence. Prosternal process with strong longitudinal ridges either side so that it appears furrowed. Front margin of the first abdominal segment broadly rounded between the meta coxae and finely bordered. Legs mostly yellow but the coxae and femora are black to some extent, often almost entirely so. Claws smooth, with a tooth at the base which may appear as a rounded, translucent lobe. A rare melanic form occurs f. merheri.

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