Psammoecus personatus Grouvelle 1919
Creators: name: Karner, Michael
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Silvanidae
Psammoecus
Psammoecus personatus

description: Psammoecus personatus Grouvelle, 1919
(Fig. 1)
Material examined
Holotype
♀: ‘ Funchal | Madère’, ‘Type’[red label],‘MUSEUM PARIS | 1917 |Coll. GROUVELLE’, ‘ Psammoecus | personatus Grl. ’ [not Grouvelle’s hand] (MNHN).
Other material
1♀ ‘MUSÉE DU CONGO | Haut-Uele: Moto | - 1923 | L. Burgeon’ (MRAC). 1♂ ‘ Congo Belge: P.N.A. | 7-9-IV-1955 | P. Vanschuytbroeck | 12.743-58’, ‘ Secteur Nord | riv. Mukandwe, | affl. Talya, 1.200 m’ (MRAC). 1♂ ‘MUSÉE DU CONGO | Mombassa (36 km S. | Lubero VIII-1932 | L. Burgeon’ (MRAC). 2 spms ‘COLL. MUS. CONGO | Uganda: 1400 m. | savane boisée | 5/ 8-VIII-1957 ’, ‘Mission Zoolog. I.R.S.A.C. | en Afrique orientale | P. Basilewsky et | N. Leleup’ (MRAC, MKF). 1♀ ‘MUSÉE DU CONGO | Haut-Uele: Abimva | - V- 1925 | L. Burgeon’ (MRAC). 3♀♀ ‘MUSÉE DU CONGO | Haut-Uele | Watsa, XI-1919 | L. Burgeon’ (MRAC). 1♂ ‘MUSÉE DU CONGO | Ruvenzori: Kalonge | (2050 m.) 9-VIII-1932 | L. Burgeon’ (MKF). 1♂ ‘COLL. MUS. CONGO | Kivu: Ibanda | 1952 | M. Vandelanoite’ (MRAC). 1♂ ‘I.R.S.A.C.-MUS.CONGO | Kivu: Uvira | XI-1949 | N. Leleup’ (MRAC). 1♀ ‘I.R.S.A.C.-MUS.CONGO | Kivu: Marais de la basse | Kalimabenge (Uvira) | N. Leleup XI – 1955 ’ (MRAC). 1♀ ‘I.R.S.A.C.-MUS.CONGO | Maniema: Kabambare | (à la lumière) 16/ 18-X-54 | N. Leleup’ (MRAC). 1♀ ‘MUSÉE DU CONGO | Ifuri: Adia | 1935 | 1.a | (R. Belot.)’ (MRAC). 1♀ ‘COLL. MUS. CONGO | Elisabethville II/ IV-1949 | Ch. Seydel”, ‘A la lumière’ (MRAC). 1♂ ‘COLL. MUS. CONGO | Elisabethville, A la | lumière XI-50 / VI-51 | Ch. Seydel’ (MRAC). 1♂ ‘Madeira 19- 24.4.1978 | Garajau | Th. Palm’, ‘ Psammoecus | personatus | Grouvelle | det. G.Israelson’ (MHNAF).
Differential diagnosis
Ps. personatus differs from Ps. marginicollis Grouvelle, 1908, Ps. parallelus Grouvelle, 1919, Ps. laetulus Grouvelle, 1914 and Ps. luchti sp. nov. by the longer lateral teeth of the pronotum. It differs from Ps. leleupi sp. nov. by the narrower elytral striae, narrower bases of lateral teeth of pronotum, and slender parameres with shorter and fewer setae; from Ps. hacquardi Grouvelle, 1889 by the 1 st antennomere being less than two times as long as 2 nd; from Ps. laetulus by the maximum pronotal width being closer to the middle, narrower elytral striae, and less extensive dark elytral markings.
Redescription
BODY. Elongate oval, total length 2.50-3.00 mm (Fig. 1A). Surface yellowish brown. Elytra with round brown or blackish-brown maculae on disc and narrow macula on posterior part of suture; some specimens without elytral maculae. Antennae as in Fig. 1B, yellowish brown, 7 th to 10 th and apex of 6 th antennomere brown or blackish brown, 11 th antennomere lighter than basal antennomeres.
HEAD. Broad, temples rounded, immediately narrowed behind eyes; width 0.69-0.83 mm, length 0.36- 0.45 mm, 1.71-1.90 times as wide as long. Eyes protuberant, 0.21-0.24 mm long, distance of inner margins 0.43-0.54 mm. Puncturation on vertex variable, moderate to very dense, distance between punctures irregular, slightly increasing anteriorly. Pubescence composed of long, semierect setae, directed anteriorly; microsculpture absent. Longitudinal impressions on vertex distinct, attaining anterior third of eyes. Antennae 1.23-1.43 mm long; antennomere proportions of holotype as follows: 2.5: 1.4: 1.4: 1.6: 1.6: 1.4: 1.1: 1.1:1.1: 1.0: 2.3.
PRONOTUM. Broad, width 0.71-0.88 mm, length 0.48-0.60 mm, 1.35-1.50 times as wide as long. Anterior angles with distinct group of small, short teeth; lateral margins with five teeth, tooth I small, tooth II larger, tooth III the largest, tooth IV a little smaller than tooth II, tooth V very small. Posterior angle diminutive. Puncturation on disc coarser than on vertex, punctures sometimes hardly separated. Pubescence as on vertex; microsculpture mostly not visible (holotypus), some specimens showing a very shallow reticulation.
ELYTRA. Oval, length 1.63-2.00 mm, combined width 1.08-1.38 mm, 1.35-1.56 times as long as combined width. Rows of punctures on disc somewhat narrower than interstices. Pubescense composed of long, semierect setae, directed posteriorly; microsculpture absent.
PARAMERES. Slender, curved basally, with small setae along the inner margins and single long seta at their apices (Fig. 1C).
description: Published as part of 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, pp. 1-31 in European Journal of Taxonomy 17 (17) on pages 3-5, DOI: 10.5852/ejt.2012.17, http://zenodo.org/record/3857844