Semiardistomis labialis (Chaudoir, 1837)

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 : 45-46

publication ID	https://dx.doi.org/10.3897/zookeys.210.3042
publication LSID	lsid:zoobank.org:pub:DF32BC38-E839-4DC4-8EA0-FB6508EC7B2B
persistent identifier	https://treatment.plazi.org/id/EC13C1FE-2B89-3787-FFC4-F0A331A0B47A
treatment provided by	ZooKeys by Pensoft
scientific name	Semiardistomis labialis (Chaudoir, 1837)
status

Treatment

Semiardistomis labialis (Chaudoir, 1837) Figs 1, 2 View Figures 1–2 4 View Figures 3–5 6 View Figures 6–12 14 View Figures 13–21 22, 23 View Figures 22–24 25 View Figures 25–26 28 View Figures 27–30 59 View Figure 59

Clivina labialis Chaudoir, 1837: 18.

Ardistomis labialis (Chaudoir): Putzeys 1846: 648; Bates 1881: 35; Lorenz 2005: 146.

Ardistomus labialis (Chaudoir): Csiki 1927: 548; Blackwelder 1944: 27.

Ardistomis (Semiardistomis) labialis (Chaudoir): Kult 1950: 301.

Ardistomis (Semiardistomis) labialis var. picipes Bates, 1881: 35.

Ardistomis (Semiardistomis) labialis var. nanus Bates, 1881: 35.

Ardistomis (Semiardistomis) labialis var. dilatatus Bates, 1881: 35.

Ardistomis tuspanensis Putzeys 1846: 649 syn. n.

Semiardistomis labialis (Chaudoir); Erwin 2011: 235.

Type material.

Lectotype, here designated, at MHNP, glued on point, labeled: green paper handwritten "Labialis Chaud Mexico Dej."/ handwritten in box "labialis Chaud Mexique Chevrol"/ handwritten “38” / "Lectotype Ardistomis labialis Chd. Det George E. Ball 72"/ "Lectotype Clivina labialis Chd. Des. S.W. Nichols 1984"/ printed in red paper “lectotype” / printed in circle "Lectotype

Paralectotypes, here designated: two exemplars at MHNP labeled: handwritten in box "labialis Chaud Mexique Chevrol"; handwritten "Paralectotype Clivina labialis Chd. Des. S.W. Nichols 1984".

Lectotype of Ardistomis tuspanensis , here designated, at IRSBN labeled: green paper handwritten " Tuspanensis Tuspan (Chev.)"/ printed "Soc. Ent. Belg. Coll. Putzeys"/ handwritten "P. Basilewsky Ardistomus tuspanensis Putz".

Type area.

Given by Chaudoir (1837: 19) as “Mexique”.

Diagnosis.

Body piceous with green reflections. Elytral surface completely smooth, striae continuously impressed in basal 1/8, punctures deeply impressed in basal 2/3, 3 setiferous pores on interval 3. Abdominal sternum VII with 4+4 setiferous punctures.

Habitus.

dorsal and ventral aspects, respectively, as in Figs 1, 2 View Figures 1–2 .

Mouthparts.

Labrum, dorsal aspect, as in Fig. 4 View Figures 3–5 . Labium, as in Fig. 14A View Figures 13–21 ; ligula, enlarged, as in Fig. 14B View Figures 13–21 ..

Legs: male protarsus as in Fig. 23 View Figures 22–24 .

Male genitalia: as in Fig. 25 View Figures 25–26 .

Female genitalia: as in Fig. 28 View Figures 27–30 .

Measurements and variation.

Variation of measurements (mm) and ratios for Semiardistomis labialis from Mexico (n=11) are: HL = 0,53-0,58-0,68; PL = 0,90-1,11-1,25; PW = 1,00-1,23-1,40; EL = 2,65-3,10-3,40; EW = 1,70-1,94-2,20; SBL = 4,10-4,80-5,23; PW/EW = 0,63; PW/PL = 1,10; PL/EL = 0,36; EW/EL = 0,63.

Variation of measurements (mm) and ratios for Semiardistomis labialis from Costa Rica (n=11) are: HL = 0,54-0,60-0,68; PL 1,00-1,07-1,20; PW 1,10-1,21-1,36; EL 2,60-2,86-3,20; EW 1,68-1,86-2,16; SBL 4,14-4,54-5,08; PW/EW 0,65; PW/PL 1,13; PL/EL 0,38; EW/EL 0,65.

Variation of measurements (mm) and ratios for Semiardistomis labialis identified in collections as Semiardistomis tuspanensis (included syntypes) (n= 5) are: HL = 0,55-0,60-0,68; PL 1,03-1,08-1,23; PW 1,08-1,18-1,30; EL 2,65-2,80-3,00; EW 1,70-1,75-1,85; SBL 4,33-4,48-4,63; PW/EW 0,67; PW/PL 1,09; PL/EL 0,39; EW/EL 0,63.

Bates (1881) pointed the high variability of labialis populations in Central America. The polymorphic condition of characters, such as body measurements and punctuation of elytra striae, have arose different designations that includes Bates’ varieties and Semiardistomis tuspanensis (Putzeys). Body sizes show little variation between geographic regions and since for each measured sample group, distance between extremes measurements is high, this character is useless to identify forms proposed. About elytra disc punctured striae, forms varies in low grades without following any clear geographic pattern having striae punctures weekly to strongly produced and striae almost disappeared (except stria number one) to moderately impressed.

Geographical distribution

( Fig. 59 View Figure 59 ). The known range of this species extends in Middle America from central Costa Rica northward to northwestern Mexico (slightly north of the Tropic of Cancer).

Activity.

Most label data indicate "attracted to lights". Tenerals were collected in November.

Material examined.

MEXICO. Sinaloa, Culiacán Apr 1969 (USNM, 9) Veracruz, Cordoba Nov. 1966 (USNM, 7) Oaxaca Tehuantepec Dec. 1964 (USNM, 1) Chiapas Tapilulas May 1974 (USNM, 9) Colima Volcano (USNM, 5) Jalapa (IRSNB, 2) Sa. De Durango (IRSNB, 4) Guerrero Chiapas Jul 2005 (PBPC, 2). BELIZE. Sibun River at Gracy Rock Jun 1974 (USNM, 7). GUATEMALA. Alta Verapaz May 1973 (USNM, 40) Sacapulas 4500ft Dec. 1947 (USNM, 3). HONDURAS. Dept. Con ayagua Rancho Chiquito May 1964 (UASM, 8), Belize district Jun 1968 (USNM, 18), 5 mi E. Choluteca Jul 1965 (USNM, 22), 16 mi W. Sabana Grande Jul 1965 (USNM, 7), Pespire Jul 1965 (USNM, 7), San Marcus Colon Jul. 1965 (USNM, 10). EL SALVADOR. Ch. Del Guayabo May 1975 (USNM, 1). NICARAGUA. Rivas Rio Canas Gordas Jun 1964 (UASM, 18). COSTA RICA. Guanacaste Santa Rosa NP Jun 2004 (ADVA, 34), Guanacaste NP Jun 1990 (USNM, 9), Guanacaste Santa Cruz Est. Bosque Diria 150- 250 m Nov 1998 (USNM, 18), Guanacaste Santa Rosa 300 m Mar 1990 (USNM, 5).