Notes about morphological features of the Western Hemisphere subtribe Ardistomina, and revision of genus Semiardistomis Kult (Coleoptera, Carabidae, Scaritinae, Clivinini) Author Valdes, Pavel Gertrudis 365 apto 5 e / D'Strampes y Goicuria, Cp 10500, Habana, Cuba text ZooKeys 2012 2012-07-24 210 19 67 http://dx.doi.org/10.3897/zookeys.210.3042 journal article http://dx.doi.org/10.3897/zookeys.210.3042 1313-2970-210-19 DF32BC38E8394DC48EA0FB6508EC7B2B BD1FF0348E7DFFF87D580B20FFF06438 577401 Semiardistomis glabratus (Putzeys, 1866) Figs 3 13 24 26 27 41-43 57 Ardistomis glabrata Putzeys, 1866: 213. Ardistomus glabratus Putzeys: Csiki 1927 : 548; Blackwelder 1944 : 27. Ardistomis glabratus Putzeys: Lorenz 2005 : 146. Ardistomis (Semiardistomis) glabratus Putzeys: Kult 1950 : 310. Ardistomis (Semiardistomis) balthasari Kult, 1950: 309. syn. n. Semiardistomis glabratus (Putzeys); Erwin 2011 : 235. Type material. Lectotype, here designated, female (IRSNB), glued on cardboard pinned, genitalia attached in microvial, labeled: green paper handwritten "A. glabrata Pz. C Mvideo. (A. 21ª)"/ printed "Soc. Ent. Belg. Coll. Putzeys"/ printed "Syntype." Paralectotypes, here designated:onefemale (IRSNB) labeled as Lectotype; one exemplar (MHNP) labeled: handwritten in box "glabrata Putz. Mvideo". Holotype of Semiardistomis balthasari male (ADVA), glued on cardboard pinned, genitalia attached in microvial, labeled: handwritten "Ardistomis balthasari Kt. Det. K. Kult 1948"/ "balthasari Kt. det. K.Kult"/ printed in red paper "TYPE" / printed "San Ignacio Missions". Type locality. Given by Putzeys (1866 : 213) as "Montevideo" , Uruguay. Diagnosis. Body piceous with green brassy reflections. Elytral surface smooth, striae reduced to basal third, impunctate, 4 setiferous punctures on interval 3, stria 2 absent. Profemur glabrous. Abdominal sternum VII with 5+5 setiferous punctures. Habitus. dorsal aspect, as in Fig. 41 . Mouthparts. Labrum , dorsal aspect, as in Fig. 3 . Labium , as in Fig. 13A ; ligula, enlarged, as in Fig. 13B . Legs. male protarsus as in Fig. 24 . Male genitalia. as in Fig. 26 . Female genitalia. as in Fig. 27 . Measurements and variation. Variation of measurements (mm) and ratios for Semiardistomis glabratus (n=7) are: HL = 0,70-0,76-0,80; PL 1,44-1,51-1,60; PW 1,53-1,68-1,83; EL 3,56-3,84-4,13; EW 2,50-2,60-2,73; SBL 5,76-6,11-6,53; PW/EW 0,65; PW/PL 1,11; PL/EL 0,39; EW/EL 0,68. Variation of measurements (mm) and ratios for Semiardistomis glabratus identified in collections as Semiardistomis balthasari (n= 11) are: HL = 0,67-0,78-0,86; PL 1,12-1,32-1,44; PW 1,34-1,49-1,63; EL 3,33-3,66-3,87; EW 2,08-2,36-2,56; SBL 5,15-5,76-6,11; PW/EW 0,63; PW/PL 1,13; PL/EL 0,36; EW/EL 0,65. Kult (1950) separated Semiardistomis balthasari from Semiardistomis glabratus on the basis of two character states: differences in body size and length of elytral striae. Measurements show moderate variation in size between the populations studied (see above) but the ratios show no variations in body proportions. After studying different populations across South America, I found that the length of the elytral striae varies between populations from specimens with striae 4, 5 and 6 extended to the second dorsal puncture in interval 3 ( Fig. 42 ) to specimens with striae 4 and 5 almost extended only to the first dorsal pore in interval 3, and stria 6 almost obliterated ( Fig. 43 ). The pattern of variation is clinal from north to south. Habitat. Data from labels suggest that the species lives along standing water bodies and swamps. Geographical distribution ( Fig. 57 ). Widespread in South America, east of the Andes mountain range, from northern Brazil, north of the Equator, to Uruguay, south of the Tropic of Capricorn. Material examined. ARGENTINA. San Ignacio Misiones (ADVA, 2) Rio Salado (IRSNB, 12) Cordoba Argueello Sept 58 (MHNP, 8). BRAZIL. Oberaba (IRSNB, 9). PERU. Loreto 1 km E Hamburgo, Boca del Ingles Camp, 150 m 23 Aug 1991 (USNM, 8). Loreto, Pithecia 14 Aug 1989 (USNM, 5). Madre de Dios Pakitza 07 Oct 1990 (USNM, 5). URUGUAY. Montevideo (IRSBN, 5) (MHNP, 2). VENEZUELA. Amazonas, Dpto Rio Negro 28 Jan 1985 (USNM, 4). Figures 41-44. 41-43 Semiardistomis glabratus (Putzeys) 41 exemplar from Peru, Loreto 42 exemplar from Argentina, Misiones 43 exemplar from Uruguay, Montevideo 44 Semiardistomis pilosellus (Kult). Dorsal aspect. Scale bar 1 mm.