Psammoecus lateralis ( Grouvelle, 1899 )

Karner, Michael, 2012, A revision of African Psammoecus (Coleoptera, Silvanidae) and descriptions of two new species from the collection of the Musée royal de l’Afrique centrale, European Journal of Taxonomy 17, pp. 1-31: 20-21

publication ID

http://dx.doi.org/10.5852/ejt.2012.17

publication LSID

lsid:zoobank.org:pub:1238951A-FE17-40B2-9DCD-9D7939BECD09

DOI

http://doi.org/10.5281/zenodo.3858728

persistent identifier

http://treatment.plazi.org/id/03BB8D13-E104-FF8F-FD81-7BF08739FD18

treatment provided by

Carolina

scientific name

Psammoecus lateralis ( Grouvelle, 1899 )
status

 

Psammoecus lateralis ( Grouvelle, 1899)  

( Fig. 9 View Fig )

Cryptamorpha lateralis Grouvelle, 1899: 179   .

Psammoecus lateralis Grouvelle, 1919: 46   .

Material examined

Holotype

♀: ‘Andrangoloaka | 1600 m. O. S. O. de | Tananarive.’, ‘Type’ [red label], ‘MUSEUM PARIS | 1917 | Coll. GROUVELLE’, ‘ Cryptamorpha   | lateralis | G. Grouv’ [Grouvelle’s hand] ( MNHN).

 

Differential diagnosis

Ps. lateralis   resembles Ps. longicornis   , but differs by the smaller and less dense puncturation on head, pronotum, and elytral discs, and by the longer antennae.

It differs from Ps. grandis   by absence of lateral teeth of pronotum.

Redescription

BODY. Elongate-oval, total length 3.60 mm ( Fig. 9A View Fig ). Surface yellowish brown with elytral margin and a round macula on posterior third of elytra dark brown.

HEAD. With long, slightly rounded temples; width 0.79 mm, length 0.48 mm, 1.65 times as wide as long. Eyes moderately protuberant, 0.4 mm long, distance of inner margins 0.53 mm. Puncturation on vertex of moderate density, punctures small, distance between punctures variable. Pubescence composed of short semierect setae, directed anteriorly; microsculpture very distinct, reticulate. Longitudinal impressions on vertex short, distinct, attaining the anterior quarter of the eyes. Antennae as in Fig. 9B View Fig , antennal length 1.78 mm; antennomere proportions of holotype as follows: 2.6: 1.3: 1.2: 1.1: 1.4: 1.6: 1.4: 1.1:1.1: 1.0: 1.9.

PRONOTUM. Subquadrate, width 0.86 mm, length 0.75 mm, 1.15 times as wide as long. Anterior and posterior angles with distinct groups of small teeth, lateral teeth absent. Puncturation on pronotal disc sparser as on vertex, punctures of same size as on vertex. Pubescence shorter and less erect as on vertex; microsculpture distinct, reticulate.

ELYTRA. Elongate, length 2.35 mm, width 1.28 mm, 1.84 times as long as combined width. Rows of punctures on disc distinctly narrower than interstices. Pubescence composed of only slightly erect setae; microsculpture hardly visible, very shallow, reticulate.

MNHN

France, Paris, Museum National d'Histoire Naturelle

MNHN

Museum National d'Histoire Naturelle

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Silvanidae

Genus

Psammoecus

Loc

Psammoecus lateralis ( Grouvelle, 1899 )

Karner, Michael 2012
2012
Loc

Psammoecus lateralis

Grouvelle A. 1919: 46
1919
Loc

Cryptamorpha lateralis

Grouvelle A. 1899: 179
1899