Leptoprion, Krekich-Strassoldo, 1914

Kejval, Zbyněk & Cz, Domažlice, 2013, Taxonomic revision of the Australian Notoxinae (Coleoptera: Anthicidae), Acta Entomologica Musei Nationalis Pragae (suppl.) 53, pp. 1-98: 6-7

publication ID

http://doi.org/10.5281/zenodo.4272709

publication LSID

lsid:zoobank.org:pub:37E0BCFC-F84A-4B2E-B554-0DC4AE42AD15

DOI

http://doi.org/10.5281/zenodo.4338862

persistent identifier

http://treatment.plazi.org/id/03E1270F-FFC1-FF91-FE4A-D1AA2448FB8F

treatment provided by

Felipe

scientific name

Leptoprion
status

 

The genus Leptoprion  

Leptoprion   is monotypic genus of Notoxinae   , comprising a single species, Leptoprion angulatus Krekich-Strassoldo, 1914   . It was described from single specimen collected in southwestern Sumatra (Bengkulu province, Manna), and KREKICH- STRASSOLDO (1914) placed his genus near Hypaspistes   and Notoxus   . HEBERDEY (1942), based on the original description, regarded Leptoprion   as subgenus of Hypaspistes   and stated that it may perhaps indicate closer relationship of Hypaspistes   and Mecynotarsus   , forming transition between these two genera. Finally, BONADONA (1958) treated Leptoprion   , without providing any comments, as a synonym of Hypaspistes   .

Leptoprion   was never revised and never recorded again. The holotype is presently deposited in the Veth Collection (NCB). It is a female bearing the following label data ( Fig. 119 View Figs 119–125. 119–124 ): ‘Sumatra Manna 1901 M. Knappert [p+h] // TYPE [p; red label] // Leptoprion angulatus   det. v.Krekich [p+h] // Leptoprion angulatus   spec. et subgen. nov. [h] // Coll. Veth [p] Museum Leiden NCB Naturalis The Netherlands Coleoptera   [p]’. It is a rather large specimen (body length 3.2 mm), showing a very distinctive morphology of the pronotal horn, which is extremely long and slender, nearly parallel-sided, with very widely spaced lobules on the lateral margins, feebly marked horn crest, and distinctly corrugated latero-basal surface ( Figs 126 View Figs 126–132. 126–127 , 141 View Figs 141–149 , 186 View Figs 186–193 ). Additional remarkable characters of the type are as follows: posterior collar of pronotum quite distinct; body rather glossy, elytra sparsely punctured, elytral setation generally longer and more erect, mostly decumbent, with some very long, suberect to erect tactile setae; antebasal tactile setae of pronotum conspicuous (not articulated near distinct tubercles); setation of tibiae additionally with numerous, decumbent stiff setae; antennomere I conspicuously elongate, nearly 4.0 times as long as wide, and about 3.0 times as long as antennomere II.

Based on examination of the type, Leptoprion   shares all important external characters of Mecynotarsus   ; the lack of the mandibular flange, mentioned in the diagnosis of Notoxinae   by CHANDLER (2010), is based upon a specimen of M. excavatus   sp. nov., tentatively assigned to this genus and showing only regression of the posterior margin of the flange (Chandler, pers. comm.). On the other hand, L. angulatus   is a very conspicuous and surprisingly isolated species, which does not resemble any of the presently known Oriental Mecynotarsus   . It does not seem to be close even to the Australian species, which are very diversified in external characters. Some species have an extremely elongate pronotal horn, with three to four widely spaced lobules on each side, feebly marked horn-crest, and rather elongate and conspicuously robust basal antennomeres. They are clearly variable in characters of setation, including the presence of erect tactile setae on the elytra and stiff setae on the tibiae (generally well-developed in these species, and sometimes very conspicuous as in Fig. 136 View Figs 133–140. 133 ). Consequently, it is not rejected that L. angulatus   may belong to the Australian M. ziczac   species-group, and represents only a geographically isolated and thus extremely aberrant species, in which case Leptoprion   would be the available genus group name for this species group. Similarly, M. excavatus   sp. nov. of this group, which is known only from the island of New Caledonia, is another isolated species that displays a number of unique characters (conspicuous sexual dimorphism, excavate elytral apex in both sexes, peculiar double setation of elytra etc.).

The identity of Leptoprion   remains obscure and it is obvious that additional specimens are needed with examination of the male characters important for any further comments and decisions.

Kingdom

Animalia

Phylum

Arthropoda

Class

Polychaeta

Order

Coleoptera

Family

Anthicidae

Loc

Leptoprion

Kejval, Zbyněk & Cz, Domažlice 2013
2013
Loc

Leptoprion angulatus

Kejval & Cz 2013
2013
Loc

Leptoprion

Krekich-Strassoldo 1914
1914
Loc

Leptoprion angulatus

Krekich-Strassoldo 1914
1914
Loc

Leptoprion

Krekich-Strassoldo 1914
1914
Loc

Leptoprion

Krekich-Strassoldo 1914
1914
Loc

Leptoprion

Krekich-Strassoldo 1914
1914
Loc

Leptoprion angulatus

Krekich-Strassoldo 1914
1914
Loc

Hypaspistes

Waterhouse 1886
1886
Loc

Hypaspistes

Waterhouse 1886
1886
Loc

Hypaspistes

Waterhouse 1886
1886
Loc

Hypaspistes

Waterhouse 1886
1886
Loc

Mecynotarsus

LaFerte-Senectere 1849
1849
Loc

Notoxinae

Stephens 1829
1829
Loc

Notoxus

Geoffroy 1762
1762
Loc

Coleoptera

Linnaeus 1758
1758