Revision Of The Weevil Genera Magdalinops Dietz And Chelonychus Dietz (Coleoptera: Curculionidae, Anthonomini) Author Clark, Wayne E. Department of Entomology and Plant Pathology Alabama Agricultural Experiment Station Auburn University Auburn, AL 36849, U. S. A. Author Burke, Horace R. Department of Entomology Texas A & M University College Station, TX 77843, U. S. A. text The Coleopterists Bulletin 2002 2002-03-01 56 1 107 122 journal article 10.1649/0010-065X(2002)056[0107:ROTWGM]2.0.CO;2 1938-4394 4900399 Magdalinops vittipennis Dietz Figs. 1, 2 , 11 , 15 , 18 , 21 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 ): 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 Figs. 9–10. Magdalinops spp. , head and thorax, lateral view. 9) M. alutaceus , head and thorax, /, 7 mi. E Springville, Utah; 10) M. falli , /, Claremont, California. 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 ). 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 Figs. 11–14. Magdalinops spp. , metathoracic leg. 11) M. vittipennis , ?; 12) M. knowltoni , ?; 13) M. alutaceus , ?; 14) M. falli , ?. 112 THE COLEOPTERISTS BULLETIN 56(1), 2002 Figs. 15–17. Magdalinops spp. , tarsal claws, right prothoracic leg, /, dorsal view. 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 ); 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 ); metatibial mucro narrow, straight, oblique, acute ( Fig. 11 ); 5th tarsal segment 2.5 3 longer than 3rd segment ( Fig. 18 ); tarsal claw with long, slender, acute tooth arising from inner margin slightly distad of base ( Figs. 15 , 18 ). Male Genitalia : ( Fig. 21 ). median lobe of aedeagus slightly constricted subapically, evenly, gradually narrowed to rounded apex in dorsal view; endophallus unarmed. Figs. 18–20. Magdalinops spp. , tarsal claws, right metathoracic leg, lateral view. 18) M. vittipennis , /; 19) M. alutaceus , /; 20) M. knowltoni , ?. THE COLEOPTERISTS BULLETIN 56(1), 2002 113 Figs. 21–24. Magdalinops spp. , aedeagus, dorsal view. 21) M. vittipennis ; 22) M. knowltoni , holotype; 23) M. alutaceus, Brewster , Washington; 24) M. falli , holotype. 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 ) ; 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.