Embates fasciolatus (Chevrolat)

Prena, Jens, 2005, The Middle American species of Embates Chevrolat (Coleoptera: Curculionidae: Baridinae), Zootaxa 1100 (1), pp. 1-151 : 1-151

publication ID

https://doi.org/ 10.11646/zootaxa.1100.1.1

publication LSID

lsid:zoobank.org:pub:7C1F1264-5F23-4557-BFC2-4D015289CF7E

persistent identifier

https://treatment.plazi.org/id/4540A14C-CF6D-9E3F-B436-DE7FFBA93239

treatment provided by

Felipe

scientific name

Embates fasciolatus (Chevrolat)
status

 

44. Embates fasciolatus (Chevrolat)

(Fig. 158, 240)

Ambates fasciolatus Chevrolat 1877: 241 . Holotype, sex not determined, Mexico, labeled: “Typus”, “Sallé” (NHRS). Champion 1907: 160 (as sp. n. in head­line, lapsus)

Ambates sexpunctatus Champion 1907: 161 . Lectotype male, here designated, Mexico, labeled: “sp. figured”, “ Type ”, “ ♂ ”, “Misantla/ Mexico / Hoege”, “ B.C.A. Col. iv.5/ Ambates / sexpunctatus/ Champ.” (BMNH). Paralectotype 1, here designated: Misantla (BMNH). New synonymy

Embates [ fasciolatus ]. Alonso­Zarazaga & Lyal 1999 (global combination of all species of Ambates Schönherr 1836 with Embates Chevrolat 1833 )

Redescription. Habitus: figured in Champion (1906–09), total length 9.1–10.1 mm (n=2). Color: integument dark brown; basic vestiture of minute, cupreous scales; scales yellow in thin, variously reduced elytral fascia (Fig. 158a, b); venter with small scales on prosternum and along flank, clustered locally. Head: frontal fovea deep, rostrum moderate, subcylindrical, sides attenuated between apex and antennal insertion, costate dorsomedially, subcostate dorsolaterally (probably not in females), basolateral margin moderately edged, length of rostrum ♂♂ 1.23–1.28 x (n=2) pronotal length, length of ante­antennal portion ♂♂ 0.32–0.34 x (n=2) total rostral length, dorsal margin of antennal scrobe reaching rostral base well before eye; funicular segment 2 distinctly longer than 1, club oblong ovate. Pronotum: length 0.88–0.89 x (n=2) maximum width, widest in basal fourth, then roundly narrowed, anterior portion tubulate; disk finely punctate, intervals rugose. Elytra: length 1.75–1.88 x (n=2) width at humeri, width 1.25–1.36 x (n=2) maximum pronotal width, sides subparallel in basal half, apices rounded conjointly, preapical callus weakly developed, striae fine, punctures distinct, interstriae flat, 9 convex. Legs: slender, tibia nearly straight, ventral margin with distal cluster of cupreous hairs, tarsal claws arcuate and separate at base. Male: aedeagus as E. obliquus .

Plant association. Not known.

Distribution. Southern Mexico, Atlantic side, west of Isthmus of Tehuantepec (Fig. 240).

Material examined. MEXICO. Veracruz: Catemaco ( CNCI, NMNH) ; Sontecomapan ( BMNH) ; Misantla ( BMNH 2 ) . Oaxaca: San Mateo Yetla ( CWOB) . Total 6 specimens .

Discussion. The thin elytral fascia is derived from a previous ante­macular element. It is variously reduced in the specimens from Yetla and Misantla. Champion described the latter form as a distinct species, E. sexpunctatus . He recognized its close relationship with E. fasciolatus , and included E. obliquus in this group. However, the elytral fascia of the latter is derived from a previous post­macular element, and the species has different tarsal claws. Embates obliquus is related more closely to E. heilipoides .

CNCI

Canadian National Collection Insects

NMNH

Smithsonian Institution, National Museum of Natural History

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Curculionidae

Genus

Embates

Loc

Embates fasciolatus (Chevrolat)

Prena, Jens 2005
2005
Loc

Ambates sexpunctatus

Champion, G. C. 1907: 161
1907
Loc

Ambates fasciolatus

Champion, G. C. 1907: 160
Chevrolat, A. 1877: 241
1877