Centrinus senilis, Gyllenhal, 1836

Prena, Jens, 2009, A Review of the Species of Geraeus Pascoe and Linogeraeus Casey Found in the Continental United States (Coleoptera: Curculionidae: Baridinae), The Coleopterists Bulletin 63 (2), pp. 123-172 : 140-143

publication ID

https://doi.org/ 10.1649/0010-065x-63.2.123

publication LSID

lsid:zoobank.org:pub:D00E60FB-9B19-4546-98D2-98436F5CCA2E

persistent identifier

https://treatment.plazi.org/id/039987D5-FFF0-2F34-FF53-FA0A8EDC6321

treatment provided by

Valdenar

scientific name

Centrinus senilis
status

 

Centrinus senilis View in CoL of authors (not Gyllenhal 1836). Casey (1892:589), misidentifi-

cation. Geraeus senilis of authors; Champion (1908:265), partial misidentification. Geraeus euryonyx Champion 1910:211 . Syntypes, 1 male, 1 female, labeled

‘‘ Mexico / Hoege.,’’ Champion’s handwriting ‘‘ Geraeus / euryonyx Ch. ,’’ and printed B.C.A. label (BMNH 2); female specimen illustrated in description and later labeled as ‘‘Type’’ by museum staff.

Geraeus balteatus Casey 1920:386 . Holotype female, labeled ‘‘ Santa Rita Mts / Arizona,’’ ‘‘senilis/ Gyll.,’’ ‘‘ Casey / bequest/ 1925,’’ ‘‘ Type USNM/ 37859 About USNM ,’’ Casey’s handwriting ‘‘balteatus/ Csy.’’ Synonymy by Hustache (1938:97).

Recognition. Geraeus euryonyx , initially lumped with G. senilis , was recognized as a distinct species by Champion (1910) and, independently, by Casey (1920). The two species exhibit a similar color pattern and are relatively more slender than other species in this complex. Geraeus euryonyx has noticeably wide, ventrally sulcate claws. Other diagnostic characters include length and shape of rostrum ( Fig. 10 View Figs ), and possibly details of the male genitalia which I did not study. Geraeus penicillus and G. nimbatus , two other native species in this complex, lack prosternal spines and have laterally compressed claws. The five specimens examined were 3.6–5.5 mm long.

Distribution. The few collecting records suggest that G. euryonyx occurs in the Sierra Madre Occidental and extends into southern Arizona.

Type locality. ‘‘? Sierra de Durango,’’ Mexico .

Plant associations. Unknown.

Material examined. United States: Arizona (Gila Co., Pima Co., Santa Cruz Co. ) ( CWOB 2 , USNM 1 About USNM ) . Mexico: [possibly Sierra de Durango according to Champion (1910)] ( BMNH 2 ) . Total 5 specimens.

Temporal occurrence. August to September [2 dates].

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Curculionidae

Genus

Centrinus

Loc

Centrinus senilis

Prena, Jens 2009
2009
Loc

Centrinus senilis

Casey 1892: 589
1892
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