Magdalinops falli, Clark, Wayne E. & Burke, Horace R., 2002

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 : 21-23

Magdalinops falli , new species

Figs. 7, 8 , 10 , 14 , 17

Type Series. Holotype. United States. California. Riverside Co.: [CALIF. Riverside Co:/ 8 km N Moreno/Badlands 1,800 9 / 19­V­1981] [Collected by/N. J./Gunther/For Ent. 109] [PHOTO] (?, CWOB). Paratypes (52). United States. California. [Fraser/VII­4–11/El. 8,000 9 /C. A. Frost] [H. C. FALL/COLLEC­ TION] (1?, MCZC). Los Angeles Co.: [Los Angeles/Cal.] [Van Dyke/Collection] (1 /, CASC); [Los Angeles/Cal.] [Van Dyke/Collection] [ Epimechus / sp. B] (1 /, CASC); [71] [Los Angeles/Co., Cal.] [Coquillet] (2 //, USNM); [Claremont/Los Angeles Co. Calif./ 3–18 1961 187/Fred G. Andrews] (1?, CDAE); [Claremont/Los Angeles Co. Calif./ 4–8 1961 198/Fred G. Andrews] (1?, 1 /, CDAE); [Claremont/Los Angeles Co. Calif./ 4–29 1961 220/Fred G. Andrews] (4 /, CDAE); [Glendale Cal/ VI­22–1948] [E I Schlinger/Collection] (1 /, UCDC); [Pasadena/Cal. 5/10/03] [H. C. FALL/COLLECTION] (1?, MCZC); [Pasadena/IV­19–32 Cal] [A. T. McClay/Collector] [PHOTO] (1?, UCDC); [Pom Cal/4.29.93] [H. C. FALL/COLLECTION] [ Epimechus / mimicus/Dietz] (1 /, MCZC); [Pom Cal/4/25/95] [H. C. FALL/COLLEC­ TION] (2 ??, MCZC); [Pom Cal/Mts 6.4.92] [H. C. FALL/COLLECTION] (2 //, MCZC); [S. Dimas/Apr. 23. 92] [Pom Cal/Mts 4.23] [mimicus] [H. C. FALL/COLLECTION] (1 /, MCZC); [Pomona/Cal] [Frederick/Blanchard/ Collection] [ Epimechus /mimicus/Dtz.] (1 /, MCZC); [San Fernando/VI­1–32 Cal] [A. T. McClay/Collector] [VIDIT/H. C. Fall/1933] [ Epimechus /mimicus/ Dietz] [C. A. Frost/Collection/1962] (1 /, MCZC); [San Gabriel/R. Calif.] [Colln E C/Zimmerman/1941] (1 /, USNM); [Whittier/IV­22–32.Cal] [A. T. McClay/Collector] [ Epimechus / mimicus Dietz /det. Fall. (1 /, UCDC); [Whittier/IV­22–32.Cal] [A. T. McClay/Collector] (3 ??, 2 //, UCDC); [Whittier/ IV­22–32.Cal] [A. T. McClay/Collector] [17318/Det Fall] (2 ??, 1 /, UCDC); [Whittier/IV­22–32.Cal] [A. T. McClay/Collector] [2] [17318/Det Fall] (1?, UCDC); [Whittier/IV­22–32.Cal] [A. T. McClay/Collector] [VIDIT/H. C. Fall/ 1933] [ Epimechus /mimicus/Dietz] [C. A. Frost/Collection/1962] (1?, MCZC). Mono Co.: [Bodie, Cal/Wickham/ 847 ft /July 1–7] (1?, USNM); [Lundy, Cal/Wickham/ 7–8,000 ft /July 8–10] [Wickham/Collection/1933] (1?, USNM); [Mono­Alpine Co. line/along Hwy. 89, CAL./ VII­23–1975] [A. J. Gilbert/R. Bingham/Collectors] (1 /, CDAE). Orange Co.: [Irvine/Cal 3–21] [Colln E C/Zimmerman/1941] (1 /, USNM); [Laguna Bch/S Cal Baker] [H. C. FROST/COLLECTION] (1 /, MCZC). Riverside Co.: [Temecula/Riverside Co./Cal. III­24–71] [ex/ Artemisia /californica] [R. Gill/E. Paddock/collectors] [Athonomus (sic.)/sp./det T. N. Seeno 1971] (1?, CDAE). San Diego Co.: [Fallbrook/S. D. Co. Cal./ V­2–1971] [A. J. Gilbert/Colr.] (1 /, CWOB); [Pine Valley/San Diego Co. Cal/V­29–20] [Blaisdell/Collection] (1 /, CASC); [Apr 34/Palmar Cy/Calif./Coy] [L. Pierce Coy/Collection Donated by/Ann S. Coy to/ CALIFORNIA ACADEMY OF/SCIENCES—1986] (1?, CASC). Santa Barbara Co.: [Gaviota Pass/S. Barbara Co./CALIF. VI­18­69] [W. F. Barr/

THE COLEOPTERISTS BULLETIN 56(1), 2002 117

Co./ 37 mi. W. Poudre Park/8200’ VII­24­1971 /O’Briens & Marshall] 1?, 1 /, CWOB). Idaho. Twin Falls . [Hubbs Butte, Ida/Pole 29/Trap 5/ 26 May 1931 / Wind Vane Trap] [no femor/tooth/claws toothed] [(illegible handwritten note)] (1 /, USNM) . Nevada. White Pine Co.: [37 mi. NW Ely / White Pine / Co. Nevada / VII­4­1964] [Collectors: L&/ C. W. O’Brien] (1 /, CWOB) . Oregon. Lake Co.: [ORE: Lakeview/ June 27–28, 1951 / Borys Malkin] [ Epimechus /nr. mimicrus (sic.)/ Dietz / Burke —1968] [Anthonomus /(s. str.) melancholicus/ Dietz / M. Hatch —1965] (1 /, OSUO) . Wyoming. Teton Co.: [WY­ OMING, Teton Co / 12 mi. S. Jackson / VI­23­1962 6100 9] [C. W. O’Brien / Collector] (1 /, CWOB) . Yellowstone National Park . [Yellowstone / Natl. Park] [Roosevelt / Camp /VI­26­30] [Van Dyke / Collection] (1 /, CASC) .

Description. Body ( Figs. 7–8 ): stout, broad, parallel­sided in dorsal view; length 2.5– 3.4 mm; width 1.3–1.8 mm. Integument black, broadly exposed, sparsely clothed with setiform fuscous scales and broader, more abundant, pallid cretaceous scales. Head: vertex minutely punctate, finely granulate, with sparse, narrow, cretaceous scales. Rostrum: distinctly, evenly curved from base to apex; proximal portion rugose, glabrous; distal portion rugulose, punctulate, glabrous. Antenna: funicular segments with narrow, setiform scales; basal segment of club ca. 1/3 length of club, densely setose except at base. Prothorax: pronotum densely, coarsely punctate, without middorsal carina; long, slender, cretaceous scales predominant laterally, slightly broader scales forming narrow middorsal vitta, shorter, narrower cretaceous scales predominant laterally on dorsum; mesocoxae separated by distance ca. 0.3 3 width of one mexocoxa. Elytra: broad, slightly wider at humeri, subparallel­sided in dorsal view, convex on disc and strongly rounded posteriorly in lateral view; striae slightly impressed, each puncture with one small cretaceous scale; interstriae subequal in width and slight convexity, with uniform vestiture of small, sparse, cretaceous scales; sutural interstriae not prominent. Scutellum : with dense cretaceous scales. Pygidium : punctate. Abdomen: sterna 1–4 with narrow, pallid scales laterally, with sparser, narrower scales medially; sternum 5 not impressed medially. Legs: profemur slender ( Fig. 14 ), unarmed; protibia narrow, straight, with slight inner­marginal prominence in basal 1/4 and with one slight preapical prominence; protibial uncus slender, curved, acute; metatibia with outer margin straight, inner margin slightly prominent in basal 1/4, not notably concave in apical 3/4, without preapical convexity ( Fig. 14 ); metatibial mucro straight, subacute, oblique in lateral view ( Fig. 14 ); tarsal claw long, slender, with blunt prominence ( Fig. 17 ) or short, slender tooth arising from inner margin, well distad of base (cf. Fig. 16 ). Male Genitalia ( Fig. 24 ): median lobe of aedeagus evenly, gradually narrowed to bluntly rounded apex in dorsal view; endophallus unarmed.

Plant Associations. The only indication of a host relationship for M. falli is a label: ‘‘ex Artemisia . ’’

Remarks. Magdalinops falli resembles Epimechus mimicus Dietz. Both species have dark integument broadly exposed between sparse, narrow scales, the rostrum long and slender, strongly curved, slightly more strongly so basally, and the antennal funiculus 7­segmented. Magdalinops falli is larger, however, has the rostrum broader at the base and more narrowed apically in lateral view, and lacks the apicomedian prominence of the median lobe of the aedeagus and the endophallic transfer apparatus exhibited by E. mimicus . Furthermore, the tarsal claws of M. falli are longer and more widely divergent and have a small, acute basal prominence ( Fig. 17 ) or slender tooth (cf. Fig. 16 ) that is lacking in E. mimicus . The tarsal claws of M. falli are long, slender, and widely divergent as in M. alutaceus (cf. Figs. 16–17 ). The claws of M. alutaceus have a uniformly slender, acute basal tooth, whereas the claws in M. falli vary—in some the slender, acute tooth of the claw is indistinguishable from that of M.

118 THE COLEOPTERISTS BULLETIN 56(1), 2002

however, is distinguished by its stouter, broader body form (cf. Figs. 5–8 ), rugose­punctate rather than smooth, sparsely punctate rostrum, subcarinate rather than obsolete dorsal margin of the lateral rostral groove, and by the narrower pronotal and elytral scales that leave the integument more broadly exposed.

The species is named for Henry Clinton Fall (1862–1939) in honor of his many contributions to the study of the Curculionidae . The Fall Collection at the MCZC also contains some of the earliest collected specimens of this species.

Figures

Figs. 5–8. Magdalinops spp., habitus. 5) Magdalinops alutaceus, habitus, /, holotype; 6) M. alutaceus, /, holotype; 7) M. falli, /, Pasadena, California; 8) M. falli, /, Pasadena, California.

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.

Figs. 11–14. Magdalinops spp., metathoracic leg. 11) M. vittipennis,?; 12) M. knowltoni,?; 13) M. alutaceus,?; 14) M. falli,?.

Figs. 15–17. Magdalinops spp., tarsal claws, right prothoracic leg, /, dorsal view.

Figs. 21–24. Magdalinops spp., aedeagus, dorsal view. 21) M. vittipennis; 22) M. knowltoni, holotype; 23) M. alutaceus, Brewster, Washington; 24) M. falli, holotype.