Praocis (Praocis) sulcata Eschscholtz, 1829

Flores, Gustavo E. & Pizarro-Araya, Jaime, 2012, Systematic revision of the South American genus Praocis Eschscholtz, 1829 (Coleoptera: Tenebrionidae). Part 1: Introduction and subgenus Praocis s. str., Zootaxa 3336, pp. 1-35 : 22-23

Praocis (Praocis) sulcata Eschscholtz, 1829

( Fig. 29 ; Flores & Pizarro-Araya 2010: Fig. 1 )

Praocis sulcata Eschscholtz, 1829: 7 ; Dejean, 1834: 180 (cat.); Dejean, 1836: 200 (cat.); Guérin-Méneville, 1838: 92; Laporte, 1840: 187; Solier, 1840: 235 (rev.) (misidentif.); Lacordaire, 1859: 214; Gemminger & Harold, 1870: 1906 (cat.); Philippi, 1887: 733 (cat.); Gebien, 1910: 262 (cat.); Gebien, 1938: 400 (cat.); Blackwelder, 1945: 523 (cat.); Kulzer, 1958: 19 (rev.); Peña, 1966: 429 (cat.); Vidal & Guerrero, 2007: 73, 217; Flores, 2007: 416 (lectot.); Pizarro-Araya et al., 2008: 273 (list); Flores & Pizarro-Araya, 2010: 66 .

Sternodes mannerheimi Fischer, 1844: 125 (female); Motschulsky, 1845: 63 (syn.); Lacordaire, 1859: 214; Gemminger & Harold, 1870: 1906 (cat.); Philippi, 1887: 733 (cat.); Gebien, 1910: 262 (cat.); Gebien, 1938: 400 (cat.); Blackwelder, 1945: 523 (cat.). Synonymy by Motschulsky, 1845: 63.

Praocis rotundata Laporte, 1840: 187 (not Lacordaire, 1830: 284); Solier, 1851: 190 (rev.); Lacordaire, 1859: 213; Gemminger & Harold, 1870: 1905 (cat.); Philippi, 1887: 732 (cat.); Gebien, 1910: 261 (cat.); Gebien, 1938: 398 (cat.); Blackwelder, 1945: 523 (cat.); Flores & Pizarro-Araya, 2010: 66 (syn.). Synonymy by Flores & Pizarro-Araya, 2010: 66 .

Redescription. Length 6.0–11.0 mm. Body black to dark brown, antennae and legs dark brown. Head. Clypeus and frons with round punctures each with a central seta; antennae reaching midpoint of lateral margin of pronotum; antennomere 9 longer than wide, with apical tomentose sensory patches arranged in two areas separated dorsally; antennomere 10 as wide as antennomere 11. Thorax. Pronotum widest behind midpoint; disc glabrous, lateral quarters with fine, golden setae; punctures of disc same size as punctures of elytron; width of anterior margin not exceeding half the width of posterior margin; lateral quarters convex, dorsal surface of lateral margin bearing a row of short golden setae; posterior angles acute, apex pointed; prosternum horizontal, with edge on anterior margin broadened below gula; prosternal process produced backwards, not reaching the midpoint of the space between pro– and mesocoxae; prosternum and mesosternum with punctures. Elytron with two carinae equidistant between suture and lateral margin and three grooves bearing short, broad, golden, scaly setae, intervals arched, wider than grooves; all grooves run from apex of elytron towards anterior, the inner groove runs parallel with the inner groove of the other elytron reaching the anterior third, the midpoint or the posterior third, the medial and outer grooves reach the base; dorsal surface with short golden setae or glabrous; pseudopleuron with long setae arising on punctures; epipleuron with short setae arising on protuberances, lacking a row of setae on the edge of anterior quarter. Legs. Ventral surface of meso– and metafemora lacking a row of setae on posterior edge. Inner surface of meso– and metatibiae with long, fine setae. Metatibiae curved outward. Male genitalia. Rods of sterna IX close to each other at basal third. Basal lamina of tegmen equal width throughout, with base concave. Lateral styles of tegmen with proximal margin ventrally bisinuate, widest at base, with setae on distal quarter of ventral surface. Median lobe moderate (0.75 <L/T ≤ 1.00), distally broadened, with apical aperture large and apex rounded. Female genitalia. Paraprocts moderate (1.2 ≤ P/C ≤ 2.0); baculi of coxite horizontal; proctigeral baculus equal to length of paraproct baculus; apicodorsal lobe of proctiger extending about ½ length of coxite.

Type material. Lectotype of Praocis sulcata : [Type] [14893] [Hist.-Coll. ( Coleoptera )/ Nr. 14893/ Praocis sulcata Eschsch. / Chili, Eschsch./ Zool. Mus. Berlin] [Syntypys/ Praocis sulcata / Eschscholtz, 1829 / labelled by the MNHUB 2005] [Lectotypus/ Praocis sulcata Eschscholtz, 1829 / Des. G. Flores 2005] ( MNHUB) . One paralectotype same data as lectotype, except two first labels ( MNHUB) .

Note: Flores (2007: 416) designated lectotype and paralectotype.

Other material examined. CHILE. Atacama Region: Huasco Province: Huasco , 18.xii.1963, T.C.K., 2 ( UCCC). Coquimbo Region: Elqui Province : La Serena , x.1958, L.E. Peña, 2 ( FMNH), Coquimbo, 16.ix.1964, Cekalovic , 1 ( UCCC), Quebrada Santa Gracia , 1.ix.2004, L.S. Espinoza, 1 ( IADIZA), Alfalfares , 14.viii.2004, P. Agusto, 1 ( LEULS), Diaguitas , 13.viii.2004, 5 ( LEULS), 25.viii.2008, J. Pizarro-Araya, 4 ( LEULS), Lengua de Vaca , 29.x.1965, L.E. Peña, 1 ( FMNH). Limarí Province: Caleta el Limarí , 22.ix.2004, L.S. Espinoza, 1 ( LEULS), Mineral de Talca , 28.ix.2004, J. Pizarro-Araya, 4 ( IADIZA), P.N. Fray Jorge, 7–8.xi.2001, J. Pizarro-Araya, 1 ( IADIZA), Talinay , 22.ix.1947, L.E. Peña, 1 ( FMNH), 29.x.1965, L.E. Peña, 7 ( FMNH). Choapa Province: Puerto Oscuro , 23.ix.2004, J. Pizarro-Araya, 1 ( IADIZA), Bahía El Teniente , 16.x.1968, J. Solervicens, 2 ( FMNH), Quebrada el Teniente , 22.ix.1947, L.E. Peña, 1 ( FMNH), 12.x.1957, L.E. Peña, 1 ( FMNH). Metropolitana Region: Santiago Province , El Convento , 12.x.1963, L.E. Peña, 2 ( FMNH), 19.xi.1967, L.E. Peña, 1 ( FMNH). Maule Region: Cauquenes Province : Tregualemú , 24.iii.1967, Moyano , 1 ( FMNH), 11.xii.1953, L.E. Peña, 1 ( IADIZA). Pelluhue, costa Maule , 2.xii. 1953, 600 m, L.E. Peña, 1 ( FMNH). Talca Province: Constitución , 12.xi.1969, El Holsten , 2 ( FMNH), 26.xi.1953, L.E. Peña, 1 ( IADIZA). Cardenal Caro Province, Bucalemú , 24-I-2001, T. Moore, 3 ( JEBC). Bio Bío Region: Concepción Province : Quillón , 20.ix.1966, Méndez , 1 ( UCCC), Hualpén, 13.xi.1966, Quezada , 1 ( UCCC), Concepción , 6.xi.1957, P.H. Lister, 1 ( UCCC), 5.xi.1953, 1 ( FMNH), 10.x.1955, 1 ( FMNH). 5.xi.1953, 1 ( FMNH), 10.x.1955, 1 ( FMNH), Arauco , xii-1960, A. Baier, 2 ( MACN), 16.xii.1985, S. Roig, 1 ( IADIZA); without more precise data, 1 ( RBINS) .

Geographic distribution. Chile (Atacama Region: Huasco Province to Bio Bío Region: Concepción Province), in the Coquimbo and Maule biogeographic provinces.

Figures

FIGURE 29. Geographical distribution of four species of Praocis (Praocis): P. (P.) bicentenario, P. (P.) elliptica, P. (P.) medvedevi, and P. (P.) sulcata.

FIGURES 1 − 4. Scanning electron micrographs of body details of Praocis (Praocis) species. 1. Praocis (P.) subaenea, head in dorsal view. 2. P. (P.) bicentenario sp. nov., antennomeres 9 – 11 in dorsal view. 3. P. (P.) spinolai, lateral margin of pronotum in dorsal view. 4. P. (P.) spinolai, scaly setae of elytron into a groove.