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<title>Spatiodamaeus kalugaensis Ermilov &amp; Miko &amp; Kolesnikov &amp; Salavatulin 2023, sp. nov.</title>
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<h1>
<i>Spatiodamaeus kalugaensis</i>
sp. nov.</h1>

<p>(Figs 1–9)</p>
<p>
<b>Diagnosis.</b>
<i>Adult</i>. — Body length: 720–870. Cerotegument filamentous.Exuvial scalps usually present on notogaster. Propodolateral apophysis absent. Three pairs of simple prodorsobasal tubercles (<i>Da</i>,
<i>Ba</i>,
<i>Bp</i>);
<i>Dp</i>
slightly developed or indistinct, forming transverse ridge. Rostral and lamellar setae setiform, barbed; interlamellar seta rod-like; barbed; bothridial seta rod-like, blunted, barbed in mediodistal part. Spina adnata of medium length, thorn-like. Notogastral setae of
<i>c</i>
-,
<i>l</i>
- and
<i>h</i>
-series medium-sized, thorn-like;
<i>c</i>
<sub>1</sub>,
<i>c</i>
<sub>2</sub>,
<i>la</i>,
<i>lm</i>,
<i>lp</i>
of dark color, thick, barbed;
<i>h</i>
<sub>1</sub>,
<i>h</i>
<sub>2</sub>,
<i>h</i>
<sub>3</sub>
comparatively lighter and thinner;
<i>p</i>
<sub>1</sub>,
<i>p</i>
<sub>2</sub>,
<i>p</i>
<sub>3</sub>
long, setiform, barbed. Ventral enantiophyses
<i>E2</i>
and
<i>V</i>
present,
<i>M</i>
absent. Parastigmatic tubercle
<i>Sa</i>
long, thorn-like,
<i>Sp</i>
tubercle-like, quadrangular to trapezoid. Epimeral setal formula: 3-4-3-4. Epimeral, genital and aggenital setae setiform, barbed; anal and adanal setae setiform, shortly ciliate. Discidium narrowly triangular. Legs I and IV longer than body length; leg IV longest; formulas of leg segments (I–IV): femur 7-6-4-4; genu and tibia 4-4-3-3; tarsus 21-18-18-15; famulus emergent; seta
<i>v</i>
<sub>2</sub>
<i>’</i>
present on all tarsi.
<i>Juvenile instars</i>.—Cerotegument mostly bacilliform and filamentous. Bothridial seta rod-like, blunt-ended, barbed in mediodistal part. Gastronotic setae setiform or subflagellate, barbed;
<i>c</i>
<sub>1</sub>,
<i>c</i>
<sub>2</sub>,
<i>da</i>,
<i>dm</i>,
<i>dp</i>,
<i>lp</i>
longest in larva;
<i>h</i>
<sub>1</sub>
longest in nymphal instars. Dorsal setae with large sclerite at the base. Tritonymph with two pairs of setae on epimere II. Epimeral and anogenital setae setiform, barbed. Famulus sunken.</p>

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