Pronyssa hennigi (W. Horn, 1898 ) Görn, 2019

Görn, Sebastian, 2019, Redescription of the enigmatic Pronyssa hennigi (W. Horn), comb. nov. (Coleoptera: Cicindelidae), Zootaxa 4646 (3), pp. 592-594 : 592-594

Pronyssa hennigi (W. Horn, 1898) , comb. nov.

Heptodonta (aut Euryoda ?) Hennigi: W. Horn, 1898: 177, 178.

Prothyma (“group” Physodeutera ) Hennigi: W. Horn 1910: 175, plate 11.

Prothyma hennigi: Fowler 1912: 308 , 309.

Prothyma (“group” Physodeutera ) Hennigi: W. Horn 1926: 101.

Prothyma hennigi: Heynes-Wood & Dover 1928: 46 .

Prothyma (Symplecthyma) ? hennigi: Wiesner 1992: 59 .

Prothyma (Symplecthyma) ? hennigi incertae sedis: Cassola 2002: 88.

Material examined: Holotype (by monotypy) ♀ in the collection Senckenberg Deutsches Entomologisches Institut, Müncheberg, Germany, labelled: “Khasia-Hill / Sikkim 1896” [handwritten] // “Hennig / Kricheldorff” [handwritten / printed] // “Type! / coll. W Horn” [printed] // “ Holotypus ” [red label, printed] // “Coll. W. Horn / DEI Eberswalde” [printed] // “Hennigi / mihi” [yellow, handwritten] // “Genus / Pronyssa ! / Werner det’.03” [handwritten] // “hennigi / Horn” [yellow, handwritten] // “ SDEI Coleoptera / # 301573” [printed] // “ Holotype (by monotypy) / Heptodonta hennigi / W. Horn, 1898 / design. by S. Görn, 2019” [red, printed] // “ Pronyssa hennigi / (W. Horn, 1898) / comb. nov. / det. S. Görn 2019” [printed].

Type locality: India, Meghalaya, Khasi Hills .

Diagnosis: Unique among the known Pronyssa species by the shiny violet blue center of the labrum and the elon- gated shape of the pronotum. The only known species in the genus with a considerably larger central macula compared to the apical macula. The largest Pronyssa species presently known: 14.8 mm compared to a maximum length of 13.5 mm in Pronyssa nodicollis Bates ( Sawada & Wiesner 1999).

Redescription. Body size: Length 14.81 mm (without labrum), width 4.39 mm. Male unknown.

Head: Width 3.59 mm. Mandibles reddish-brown with black inner teeth. Labrum longer than wide (1.94 x 1.78 mm) with three frontal and two lateral teeth; four lateral setae; violet-blue reflecting center with large brown margin. Palpi dark yellowish. Antennae extending over basal third of elytra; brown; first four antennomeres and basal 1/8 of antennomere five glabrous, rest pubescent. Clypaeus blue-green. Frons blue-green and glabrous. Orbital plates violet with two orbital setae on each side. Vertex blue-green with two small frontal transverse impressions and one large central transverse impression; laterally deeply furrowed. Genae glabrous, ventrally blue-green and smooth, dorsally violet and shallowly furrowed.

Thorax: Pronotum distinctly longer than wide (2.68 x 2.16 mm); anterior lobe considerably narrower than posterior lobe; median lobe globular; median line distinct; dorsally blue-green and shallowly furrowed, laterally blue-violet and smooth, ventrally green and smooth.

Elytra: Length 9.31 mm; elongated and slightly extended laterally; basodiscal convexity with impressions on lateral and apical margins; apex round with slightly recessed sutural spine and elongated impression; brown with a blue-green lustre, yellowish transparent laterally at apex; punctures regularly distributed, deep in anterior half, very smooth at apex, forming few transverse rows in middle of anterior half and along lateral margin in anterior third; maculation white, hu- meral macula just indicated, circular central macula convex and slightly elongated transversely, with impression at inner margin, apical macula smaller and irregularly circular.

Abdomen: Ventrites glabrous, dark brown with greenish-blue lustre; last two visible segments brownish.

Legs: Trochanters yellow; coxae brown with shiny green reflections; femora reddish-yellow at base and brown in last third; tibiae and tarsi brown with slightly darkened apices.