Magdalinops vittipennis Dietz, 1891

Clark, Wayne E. & Burke, Horace R., 2002, Revision Of The Weevil Genera Magdalinops Dietz And Chelonychus Dietz (Coleoptera: Curculionidae, Anthonomini), The Coleopterists Bulletin 56 (1), pp. 107-122 : 15-18

publication ID

https://doi.org/ 10.1649/0010-065X(2002)056[0107:ROTWGM]2.0.CO;2

persistent identifier

https://treatment.plazi.org/id/03CF8799-FFE5-C758-91F7-14B5617DA216

treatment provided by

Carolina

scientific name

Magdalinops vittipennis Dietz
status

 

Magdalinops vittipennis Dietz View in CoL

Figs. 1, 2 View Figs , 11 View Figs , 15 View Figs , 18 View Figs , 21 View Figs

Magdalinops vittipennis Dietz 1891:184 . Lectotype (here designated). United States. California. [Cal.] [Type 1945/W. G. Dietz Coll./ Magdalinops vittipennis Dietz ] (female, MCZC). Paralectotype. [Cal.] [ Magdalinops /vittipennis/Dietz] [Type 8140/ Magdalinops /vittipennis/W. G. Dietz] (?, MCZC). Dietz (1891:184) stated that M. vittipennis was described from two females and one male.

Description. Body ( Figs. 1–2 View Figs ): elongate, cylindrical, parallel­sided in dorsal view; length 3.2–5.4 mm; width 1.2–2.1 mm. Integument black, narrowly exposed on dorso­

THE COLEOPTERISTS BULLETIN 56(1), 2002 111

lateral portions of pronotum and on even­numbered elytral interstriae, otherwise concealed beneath cinereous to fulvoferruginous scales. Head: vertex, frons and venter with dense, imbricated scales; eyes small, round. Rostrum: ( Fig. 1 View Figs ). slender, slightly, evenly curved from base to apex; proximal portion rugose­punctate, with dense, cinereous scales; feebly carinate dorsomedially; lateral rostral groove broad, punctulate, with elongate cinereous scales; dorsal margin of lateral rostral groove carinate, posteroventral margin delimited by transverse carina extending from eye to lower margin of rostrum; distal portion rugulose, punctate, glabrous, expanded at apex in dorsal view. Antennae: funicular segments with broad, cinereous scales; club ovoid, compact, evenly tapered from middle to acute apex; basal segment glabrous, shining, long, ca. 0.50 3 as long as club. Prothorax: pronotum densely, coarsely punctate, with narrow middorsal carina; elongate, imbricated scales predominant laterally and in broad middorsal vitta; sparser, narrower, cinereous scales predominant dorsolaterally; mesocoxae separated by distance ca. 0.1 3 width of one mesocoxa. Elytra: subparallel­sided in dorsal view, flattened on

112 THE COLEOPTERISTS BULLETIN 56(1), 2002

15) M. vittipennis ; 16) M. alutaceus ; 17) M. falli .

disc, broadly rounded posteriorly in lateral view; striae distinctly impressed, each puncture bearing one minute scale; interstriae flattened, subequal in width; even­numbered interstriae with elongate, broadly imbricated, cinereous scales and with irregular median row of sparse, narrower, darker scales; odd­numbered interstriae with narrower, sparser cinereous scales; sutural interstriae not prominent. Scutellum : with dense cretaceous scales. Abdomen: sterna with dense, cinereous scales. Legs: profemur stout, with one small ventral tooth; metafemur with one obsolescent ventral tooth ( Fig. 11 View Figs ); protibia with well­developed inner­marginal prominence in basal 1/3, inner margin concave in apical 1/3, with distinct, acute, preapical prominence; protibial uncus large, curved, acute; metatibia with outer margin slightly curved, especially in basal 2/3, inner margin prominent in basal 1/3, broadly concave in apical 2/3, with distinct preapical convexity ( Fig. 11 View Figs ); metatibial mucro narrow, straight, oblique, acute ( Fig. 11 View Figs ); 5th tarsal segment 2.5 3 longer than 3rd segment ( Fig. 18 View Figs ); tarsal claw with long, slender, acute tooth arising from inner margin slightly distad of base ( Figs. 15 View Figs , 18 View Figs ). Male Genitalia: ( Fig. 21 View Figs ). median lobe of aedeagus slightly constricted subapically, evenly, gradually narrowed to rounded apex in dorsal view; endophallus unarmed.

THE COLEOPTERISTS BULLETIN 56(1), 2002 113

Specimens Examined. In addition to the lectotype and paralectotype from in California, 29 specimens of M. vittipennis from the following localities were examined. United States. California. Alpine Co.: Markleeville (1, CDAE) . Inyo Co. : Big Pine (1, CMNC); Independence (1, USNM) ; Lone Pine (1, CISC) ; 2 mi. NE Lone Pine (1, CISC) ; Owens Valley (1, CISC) . Kern Co.: Frazier Park (‘‘ Chrysothamnus , ’’ 2, CDAE; 4,800 –5,000 9, 1, CMNC) GoogleMaps ; Havilah (3,000 9, 1, CISC) ; 5 mi. S Monolith (‘‘ Chrysothamnus , ’’ 2, CISC) ; Walker Pass (1, USNM) . San Bernardino Co.: Victorville (2, USNM) ; 2 mi. NW Yucca Valley (4,100 9, 1, CHAH) . San Diego Co.: (9, USNM) ; Oak Grove (2, UCDC) . Santa Barbara Co.: 8 mi. W New Cuyama (1, TAMU) . Ventura Co.: Cayama Valley (1, CDAE) .

Plant Associations. Label data indicate that adults of M. vittipennis have been collected on Chrysothamnus (Asteraceae) .

Remarks. In some specimens of M. vittipennis the scales are cinereous throughout and only slightly narrower on the odd­numbered elytral interstriae. In others, a greater or lesser proportion of the scales on the pronotum and oddnumbered interstriae are narrower and fulvescent in color, giving the elytra a more distinctly vittate appearance.

USNM

Smithsonian Institution, National Museum of Natural History

UCDC

R. M. Bohart Museum of Entomology

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Curculionidae

Genus

Magdalinops

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