Lissorhoptrus OF
Creators: name: O'Brien, Charles W.
name: Haseeb, Muhammad
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Brachyceridae
Lissorhoptrus

description: KEY TO THE SPECIES OF LISSORHOPTRUS OF   
 NORTH AMERICA NORTH OF MEXICO   
1. Tarsomere 3 distinctly wider than 2, emarginate to cordate (Fig. 35b).............................2  
1′. Tarsomere 3 not wider than 2, sublinear, truncate (Fig. 35a)........................................................... 4  
 2. Apical area of rostrum glabrous; midtibiae with long, fine swimming hairs on inner and outer margins; male hind tibia with large premucro; rarely coastal, associated with fresh water............................................  L. buchanani Kuschel    
2′. Apical area of rostrum densely clothed with hydrofuge scales and setae; midtibia lacking long swimming hairs; male hind tibia lacking premucro; coastal, associated with salt marshes and/or intertidal zones..................................... 3  
 3. Antennal funicle short, ca. 0.80X longer than scape; ocular lobe moderately welldeveloped; odd-numbered elytral intervals with inconspicuous, curved setae on scarcely evident swellings.............  L. chapini Kuschel    
 3′. Antennal funicle long, ca. 1.50X longer than scape; ocular lobe weakly developed; oddnumbered elytral intervals lacking setae, with weakly developed swellings only on declivity......................................  L. insularis Kuschel    
 4. Elytra less than 1.60X as long as wide at humeri, intervals usually with 3 or more rows of scales; apical margin of female tergite VII medially not to moderately deeply emarginated (except L. oryzophilus); widely distributed.................................................................. 6   
4′. Elytra greater than 1.62X as long as wide at humeri; intervals usually with 2 or 3 rows of scales; apical margin of female tergite VII medially weakly to moderately deeply emarginate; Florida only.......................................5  
 5. Funicle short, 0.80X as long as scape; pronotal apical constriction at apical 1/3, pronotal side margins strongly rounded behind constriction, not distinctly impressed behind rounded margin; female tergite VII with apical margin moderately deeply emarginate medially........................................  L. longipennis Kuschel    
 5′. Funicle long, 1.20X as long as scape; pronotal apical constriction at apical 1/6, pronotum weakly rounded behind constriction, distinctly sinuately impressed behind rounded margin; female tergite VII with apical margin nearly straight, weakly sinuate medially............................................  L. longitarsis Kuschel    
 6. Male hind tibial mucro with 3 large teeth, 2 apical anteriorly directed teeth appearing forked; female tergite VII deeply, narrowly emarginate medially; frons with 2 distinct, curved, submedian setae...................................................................  L. oryzophilus Kuschel    
6′. Male hind tibial mucro with 2 or 3 teeth of variable size, not appearing forked anteriorly; female tergite VII not or at most moderately emarginate medially; frons lacking submedian curved seta or with numerous setae.............7  
 7. Elytra ca. 0.25X wider at base than pronotum; rostrum with dorsum nearly straight, uneven, flattened along midline; pronotal ocular lobes weakly developed; scape with 1 or 2 apical setae............................................  L. lacustris Kuschel    
7′. Elytra ca. 0.40X wider at base than pronotum; rostrum with dorsum weakly curved, even, convex along midline or weakly curved with apex abruptly depressed; pronotal ocular lobes moderately to strongly developed; scape with several to numerous setae.............................8  
 8. Frons with numerous distinct, curved, submedian setae; rostrum with dorsum weakly curved, even, convex along midline; pronotal ocular lobes moderately strongly developed; scape with several setae; East of Rocky Mountains..........................................  L. simplex (Say)    
 8′. Frons lacking setae; rostrum with dorsum weakly curved, weakly convex along midline, apex abruptly depressed; pronotal ocular lobes strongly developed; scape with numerous setae; Arizona only...................................................  L. robbinsorum O’ Brien, new species
description: Published as part of O'Brien, Charles W. & Haseeb, Muhammad, 2014, Revision of the " Rice Water Weevil " Genus Lissorhoptrus LeConte (Coleoptera: Curculionidae) in North America North of Mexico, pp. 163-186 in The Coleopterists Bulletin 68 (2) on pages 165-166, DOI: 10.1649/0010-065x-68.2.163, http://zenodo.org/record/10101627