Semiardistomis laevistriatus (Fleutiaux & Salle , 1889)

Valdes, Pavel, 2012, Notes about morphological features of the Western Hemisphere subtribe Ardistomina, and revision of genus Semiardistomis Kult (Coleoptera, Carabidae, Scaritinae, Clivinini), ZooKeys 210, pp. 19-67 : 36

Semiardistomis laevistriatus (Fleutiaux & Salle, 1889) Figs 47 57

Ardistomis laevistriatus Fleutiaux & Sallé, 1889: 363; Leng and Mutchler 1914: 395; Kult 1950: 307; Erwin and Sims 1984: 427; Lorenz 2005: 146.

Ardistomus laevistriatus Fleutiaux & Sallé: Csiki 1927: 548; Blackwelder 1944: 27.

Semiardistomis laevistriatus (Fleutiaux & Sallé); Erwin 2011: 236.

Type material.

Lectotype, here designated, male (MHNP), glued on pinned card, labeled: printed “Type”; printed "Guadeloupe Delauney"; handwritten "Ardistomis laevistriata Fleut. & S. type"; "Ardistomis laevistriata Fleut. 47 det. K. Kult type"; "Lectotype Ardistomis laevistriata F. & S. des. S. W. Nichols 1984."

Paralectotype, here designated,female (MHNP), glued on pinned card, genitalia attached in microvial, labeled: handwritten on paper circle "Guadeloupe Delauney"; printed "ex Musaeo A. Sallé 1897"; "Paralectotype Ardistomis laevistriata F. & S. des. S. W. Nichols 1984".

Type locality.

Given by Fleutiaux and Sallé (1889: 364) as "Les Bains- Jaunes", Guadeloupe, Lesser Antilles.

Diagnosis.

Body ferrugineous dark brown. Elytral surface smooth, striae obliterated in apical fifth, impunctate, 2 setiferous punctures on interval 3, stria 2 distinct, shoulders rounded. Metathoracic wings reduced. Profemur glabrous. Abdominal sternum VII with 5+5 setiferous punctures.

Habitus.

dorsal aspect, as in Fig. 47 .

Measurements and variation.

Variation of measurements (mm) and ratios for Semiardistomis laevistriatus (n=4) are: HL = 0,65-0,68-0,70; PL = 1,13-1,20-1,28; PW = 1,33-1,39-1,45; EL = 2,95-3,05-3,15; EW = 2,00-2,05-2,10; SBL = 4,73-4,93-5,13; PW/EW = 0,68; PW/PL = 1,16; PL/EL = 0,39; EW/EL = 0,67.

Habitat.

Nichols (1988a) reported that adults of Semiardistomis laevistriatus are found under rotting bark. The species is probably associated with wet forest leaf litter.

Geographical distribution

( Fig. 57 ). Restricted to the Islands of Guadeloupe in the Lesser Antilles.

Material examined.

GUADELOUPE. Guadeloupe L. Dufau (ADVA, 1) Bains-Jaunes (USNM, 2). Guadeloupe Marie (MHNP, 1).

Figures

Figure 57. Distribution map of members of the puncticollis species-group.

Figures 47 - 48. 47 Semiardistomis laevistriatus (Fleutiaux & Salle) 48 Semiardistomis puncticollis (Dejean). Dorsal aspect. Scale bar 1 mm.