Omolabus sedatus Sharp
Creators: name: HAMILTON, ROBERT W.
Publisher: name: Zenodo
Year: 2005
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Attelabidae
Omolabus
Omolabus sedatus

description: Omolabus sedatus (Sharp)
(Figs. 6, 17, 57, 58, 59 & 60) Attelabus sedatus Sharp 1889: 8
Xestolabus sedatus (Sharp) O’Brien & Wibmer 1982: 13
Type locality. Jalapa, Mexico (Lectotype)
Type data. Three syntypes (2 males and 1 female) with the following labels were examined: 1) [point mounted], Attelabus sedatus, male, Type, D.S., Jalapa, Mexico Hoge [on card below specimen]; Type [circular label with red margin]; Jalapa. Mexico Hoege; B.C.A. Col IV.3., Attelabus sedatus Sharp; Sharp Coll 1905­313 [upside down]. 2) [male, card mounted], Attelabus sedatus D. S. Oaxaca, Mexico. Hoge [on card with specimen]; Oaxaca. Mexico. Hoege; B.C.A. Col. IV. 3. Attelabus sedatus Sharp; Sharp Coll. 1905­313 [upside down]. 3) [specimen on point tip glued to card], Attelabus sedatus, female, Type D. S., Toxpam. Mexico. Salle; Type [circular label with red margin]; Toxpam Mexico, Salle Coll., B.C.A. Co. IV.3. Attelabus sedatus Sharp; Sharp Coll. 1905­313 [upside down].The male from Jalapa is here designated as lectotype and the female from Toxpam as allolectotype.
Type holder. British Museum of Natural History (BMNH).
Size range. Male: 3.2 x 1.6 mm to 4.6 x 2.3; Female: 3.1 x 1.5 mm to 4.4 x 2.3 mm.
Description. Body dark reddish­brown throughout. Head longer than wide, with some very small punctures on vertex and near eyes; frons with wide median sulcus; vertex weakly convex; eyes reniform, weakly protuberant. Rostrum slightly shorter than head, laterally punctate, dorsally beyond antennal insertion with very small widely spaced shallow punctures; apex about twice as wide as frons; postlabial area with pair of acute divergent denticles in male. Antennae inserted near basal 1/4 of rostrum; club elongatecompact, distinctly shorter than funicle; middle and terminal segments nearly subequal; basal segment slightly longer; funicular segment 1 ovo­globose, subequal to scape; segment 2 clavate, distinctly shorter than 1; 3 and 4 like 2 but slightly longer; 5 short, weakly clavate; 6 and 7 short, more or less moniliform. Pronotum smooth, shiny, with very minute widely spaced shallow punctures; anterior collar weakly defined, widened dorsally. Scutellum 1/3 wider than long, 5­sided, posterior margin with distinct angle at middle, with some very small shallow punctures. Elytra slightly wider than long, in dorsal view only slightly narrowed posteriorly, without transverse depression behind scutellum; humeri simple, rounded, moderately protuberant; striae small, round, more deeply impressed at base of elytra, becoming progressively less distinct posteriorly; intervals at base of elytra weakly convex; intervals beyond middle of elytra flat, smooth, wide. Profemora evenly swollen and distinctly stalked in male; ventrally angulate in female.
Distribution (Fig. 6). Specimens of O. sedatus were examined from Mexico, Guatemala and Honduras.
Comments. Omolabus sedatus is a small reddish­brown species with simple humeri (Figs. 57–60). The males have a pair of acute postlabial denticles and the females have ventrally angulate profemora.
Host plants. This species is associated with Eugenia spp. (Myrtaceae).
Specimen data: 114 specimens were examined. The sex and label data are as follows:
GUATEMALA: 13 males & 2 females, Puente Lobo, 1980, Eugenia, G Vogt; 6 males & 1 female, Pto­Barrios­Puente Lobos, 1980, Eugenia, G Vogt; 5 males & 2 females, Pto. Barrios, Km 175 [Puente El Lobo], 1979, guava, G Vogt; 1 male, Km 241 [Puerto Barrios], viii­1980, G Vogt; 1 male, Km 175 [Puerto Barrios], xi­1979, G. Vogt (USNM).
HONDURAS: 1 female, 110 mi up Patuca Rio, 4­v­1947, CW Cook (CASC).
MEXICO:; 4 males & 2 female, S. L. P. [San Luis Potosi], El Naranjo, 3.7 miles West, 12­vii­1973, Guamer & Clark; 1 male, San Luis Potosi, 6 mi N Tamazunchala, 18­ viii­1959, RF Smith Collector; 1 male & 1 female, Chiapas, 4 mi NW Ocosingo, 9­iii­1953 (UCBC); 1 male, Oaxaca, Tuxtepec, 8 mi SW 200', 26­vi­1983, trop. lowland for., R Anderson; 1 male & 1 female, Oaxaca, 13 km S Tuxtepec, 60m, 26­vi­1983, M Kaulbars (CMNC); 13 males & 5 females, Oaxaca, Piedra Blanca, vii­1969, Eugenia, G Vogt; 3 males & 4 females, Oaxaca, Matias Romero, vii­1969, Eugenia, G Vogt; 1 female, [Mexico], [Oaxaca], S. of Matias Romero, 24­vii­1979, Eugenia, G Vogt; 1 female, Veracruz, Tecolutla, viii­1982, Eugenia, G Vogt; 1 female, Mexico, [Chiapas], Finca Agua Clara, 13­ viii­1982, G Vogt; 1 female, Quintana Roo, Cozumel­San Miguel, 1­vii­1959, NLH Krauss; 4 females, [Mexico], Tabasco, Jalapa, 14­viii­1982, G Vogt (USNM); 1 male, Veracruz, 1 mi W Papantla, 28­vi­1971, Clark, Murray, Hart, Schaffner; 1 male & 1 female, Veracruz, 7.3 mi E Naranjos, 20­ix­1976, WE Clark; 1 female, Veracruz, Catemaco, 11­iv­ 1967, H R Burke; 2 female, Veracruz, 27­ix­1976, WE Clark; 2 females, Tamaulipas, Rio Sabinas Rancho Cielito, 14–15 iv­1984, JA Jackman; 1 male & 1 female, S. L. P. [San Luis Potosi], Huichihuayan, 8­viii­1967, HR Burke & J Hafernik (TAMC); 1 male, Tamaulipas, Res. Biosfera El Cielo, MPIO: Llera de Canales, Ejido El Pinon S. Nino 100 msnm [?], 26­v­1998, J Hernandez; 1 male [same except 29­viii­1998]; 1 male, Veracruz, 10 mi W Poza Rica, 11­vii­1955, D Giuliani (CASC); 1 male, [Veracruz], Lake Catemaco, 24– 25 v­1969, H Howden (CMNC); 1 male & 2 females, Ver. [Veracruz], Cordoba, A Fenyes (CASC); 6 males & 3 females, Veracruz, vic. of El Salto de Eyipantia 15 km S San Andres Tuxtla, 15–28 vi­1985, Askevold & Heffern; 1 male & 2 female, Quintana Roo, Cozumel Island, 24­vi­1970, BK Dozier; 1 male & 2 females, Chiapas, 21.3 km N Ocozocoautla, 7­ ix­1981, Clark & Coe; 1 female, [Veracruz], San Fernando, [Soteapan?] Santa Marta mtns., 20­vi­1992, Liquidambar Forest, Mateu; 2 female, Yuc.[Yucatan], 6 km W Valladolid, 2­viii­1990, CW & LB O’Brien; 1 female, Tamaulipas, Rancho Cielito, 4 km W Encino, 24–25 iii­1980, EG Riley; 1 female, Veracruz, 7 mi SE Poza Rica, 25­x­1979, R Turnbow (CWOB).
description: Published as part of HAMILTON, ROBERT W., 2005, Omolabus Jekel in north and central America (Coleoptera: Attelabidae), pp. 1-60 in Zootaxa 986 (1) on pages 48-49, DOI: 10.11646/zootaxa.986.1.1, http://zenodo.org/record/5056385