Cylindromorphoides katrinae, Hornburg, Michael, 2003

Hornburg, Michael, 2003, A new Cylindromorphoides Kerremans, 1903 from the “ Gran Sabana ” in Venezuela (Coleoptera: Buprestidae), Zootaxa 130, pp. 1-6 : 2-5

Cylindromorphoides katrinae sp. n.

Holotype (male): “ Venezuela, Edo. Bolivar, Gran Sabana, nr. El Pauji, lat 04°27’ N, long 61°36’ W, ca. 800m 14.03.1995, leg. M. Hornburg”.

The holotype will be deposited in the Museum für Naturkunde der Humboldt­Universität zu Berlin ( ZMHB), Germany

Description

Measurements: total length: 6.0 mm; width: 1.6 mm.

Head: light golden­red with green frons; sparsely, regularly punctured with very fine micro­sculpture between the punctation; punctures with fine white setae; head with longitudinal furrow, deepest at frons; head appears bilobed, the protruding eyes emphasize this form; one row of strong punctures along posterior of eyes; frons more strongly microsculptured; single puncture above each antennal insertion; epistoma deeply emarginate medially with second, more shallowly, concave margin on each side, forming two fine, closely micro­sculptured teeth.

Antennae: slender, bronze; close­fitting laterally, reaching middle of pronotum; with fine white setae from third antennomere; fifth to tenth antennomeres serrate, eleventh slen­ der oval.

Pronotum: light bronze color with red­golden reflection; greatest width in anterior third; weakly transverse, 1.6 times broader than long, slightly narrower than anterior margin of elytra; surface punctured like head, very fine micro­sculpture, fine white pilosity between punctures; anterior portion regularly rounded with smooth margin; posterior margin tri­sinuate; strong transverse depression in middle; depression bound laterally by very distinct, coarse prehumeral­ridge; between arched prehumeral­ridge and weak s­shaped lateral margin, strongly micro­sculptured, with very fine pilosity.

Scutellum: bronze colored; anterior part arcuately rounded, sides straight, nearly equilateral; surface finely micro­sculptured.

Elytra: light bronze colored; opposite metacoxa narrower, anterior and posterior portions nearly of same width, widest just posteriad protruding humeri; elytra 2.6 times longer than wide; flat convex, apices separately rounded; punctation, in general very densely and transversely merged; anterior stronger transversely rugose; between punctures shiny, very regularly and closely clothed with fine white pilosity.

Ventral side: darker bronze colored and sparsely pilose; very fine micro-sculptured.

Legs: color like ventral surface, also finely micro-sculptured; femora on inner side with white pilose; tibiae sparsely pilose on external margin; all tibiae weakly arcuate; metatibiae before distal end with a comb of longer white setae.

Aedeagus ( Fig. 4 ): length 1.5mm, four times longer than broad; parameres straight laterally, divergent, rounded preapically and separately attenuate; after obtuse arch on inner side it extends parallel for half of incision, then converges; lateroposterior part of parameres clothed with long upright, silky setae.

Derivatio nominis: in gratitude to my dear companion Katrin.

3 4 Cylindromorphoides agriliformis , male Cylindromorphoides katrinae sp. n.

Distribution

Venezuela, Gran Sabana. Known only from the type locality ( Fig. 5).

Remarks

The type locality of Cylindromorphiodes katrinae sp. n. is close to a mountain-ridge, covered with ombrophilic and xerophilic vegetation ( Fig. 5), known as “El Abismo”, because of the very nice view over the large humid valley of the “Rio Icabaru” ( Fig. 6). There are, well-founded to the high-distance and the different climate-conditions, often strong upper winds. It is likely, that this species is native to this type of landscape, how it could be found on that mountain-ridge, but it is also possible, that it was carried up by the wind. Nothing is known about possible host-plants of either species. A later journey to this region, in the year 2001, in intention to collect further specimens, was unsuccessful on that score.

Specimens examined

2 exs.: Cylindromorphoides agriliformis ( Kerremans, 1897) : “Sao Paulo, Jaro Mraz, Syntypus, Cylindromorphoides mrazi: Obenb. Cotype , det. Dr. Obenberger“ (Collection Deutsches Entomologisches Institut, DEIC, Germany, Eberswalde)

Figures

FIGURES 1 - 4. Figs 1 & 2: Cylindromorphoides agriliformis (Kerremans, 1897); 1, dorsal habitus; 2, aedeagus (drawing: Cobos, 1979); Figs 3 & 4: C. katrinae sp. n.; 3, dorsal habitus; 4, aedeagus.