Cylindrocopturinus Sleeper, 1963: 218

Anzaldo, Salvatore S., 2017, Review of the genera of Conoderinae (Coleoptera, Curculionidae) from North America, Central America, and the Caribbean, ZooKeys 683, pp. 51-138 : 73-75

Cylindrocopturinus Sleeper, 1963: 218 Figs 7 , 25 , 43 , 61 , 78

Type species.

Eulechriops pictus Schaeffer, 1908 [by monotypy].

Gender.

Masculine.

Diagnosis.

Cylindrocopturinus can be differentiated from genera in the Eulechriops complex of genera by the tibial apex, which has a modified inner flange that resembles the premucro (Fig. 25 ), a rostral channel that is laterally carinate on the mesoventrite and not closed posteriorly by carina (Fig. 7 ), and no striolate profemoral patch (a similar mesoventrite has been seen in Copturomorpha , but members of this genus always have a striolate profemoral patch).

Notes.

Sleeper’s (1963) key to U.S. genera inexplicably contains two couplets that lead to Cylindrocopturinus : couplet 6a leads to genus "7. Cylindricopturinus , new genus" and couplet 8a leads to genus "7. Cylindrocopturinus , new genus". Couplet 6a is where C. pictus Schaeffer actually would key out to (in order to reach couplet 8a, couplet 4a would have to be selected, which states that the mesoventrite is not excavated, leading to couplet 8, where Cylindrocopturinus is differentiated from Cylindrocopturus for having such excavation). The use of the epithet in couplet 6a is the first appearance of the name and is spelled differently than the usage in the remainder of the text. Subsequent authors ( Kissinger 1964, Hespenheide 1984, Anderson 1994) did not choose among the original spellings as a First Reviser (International Code of Zoological Nomenclature article 24.2.3) but used the spelling " Cylindrocopturinus " in their work. Cylindrocopturinus is thus selected here as the correct original spelling, making " Cylindricopturinus " an unavailable name as an alternative original spelling.

Keys .

R.S. Anderson 1994: 463.

Phylogenetic relationships.

See "Phylogenetic relationship" section for Coturpus . Hespenheide (1984: 315) suggested a relationship of Cylindrocopturinus with Zurus (= Copturus ), Euzurus , Microzurus , Mnemyne Pascoe, 1880, and Paramnemyne , citing the "...structure of the mesosternum and procoxae, the small size of the tarsal claws, and form of the antennae..." as indicative of a closer relationship to Microzurus . The genera Cylindrocopturinus , Coturpus , and Turcopus were proposed by R.S. Anderson (1994) to be related to Eulechriops . As interpreted here, those genera, plus Macrolechriops and Copturomorpha , compose a group of lechriopines, the majority of which contain a combination of the following characteristics: unarmed and non-carinate hind femora, a rostral channel defined laterally by carina, and a second antennal funicular article that is subequal to or shorter than the first.

Host associations.

Species of Cylindrocopturinus have been collected on various species of Phoradendron on species of Quercus , Acacia Mill. ( Fabaceae ), Juniperus L. ( Cupressaceae Gray), and Ipomoea L. ( Convolvulaceae Juss.) (R.S. Anderson 1994).

Described species.

Four ( Hespenheide (1984) described one species, R.S. Anderson (1994) described two).

Range.

U.S.A.: AZ, Mexico, Honduras.

Figures

Figures 1 - 9. Variation in the mesoventrite. 1 Trichodocerus brevilineatus [ARTSYS 0000616] showing a prosternal rostral " sheath " with the sides converging below the procoxae, the transverse ridge anterior to the mesocoxae and the region of the mesoventrite posterior to the ridge with dense yellow scales 2 Lobops bonvouloiri [ARTSYS 0000527] showing a cup-shaped receptacle for receiving the rostrum 3 Piazurus trifoveatus [SSAC 0001118] with an " open " channel on the mesoventrite 4 Pseudopinarus condyliatus [SSAC 0001116] with an " open " channel on the mesoventrite 5 Acoptus suturalis [ASUHIC 0016914] showing a flat, unmodified mesoventrite 6 Copturus sanguinicollis [ASUHIC 0086638] showing a closed receptacle on the mesoventrite with lateral flanges 7 Cylindrocopturinus pictus [SSAC 0001288] showing a rostral channel of the mesoventrite formed by relatively parallel carinae and no posterior termination 8 Euzurus ornativentris [ARTSYS 0000796] 9 Hoplocopturus javeti [SSAC 0001289] with an inverted U-shaped carina and the region posterior to the carina invaginated.

Figures 19 - 36. Variation in the metatibial apex. 19 Mesotibial apex of Lechriops vestitus illustrating parts of the tibial apex: a) posterior apical angle with large, curved uncus; b) middle of the apex with produced, rounded inner flange; c) anterior apical margin with premucro; d) oblique ridge of premucro; e) apical setal tuft 20 Male Trichodocerus brevilineatus [ARTSYS 0000609] with a tibial uncus arising at the middle of the apex 21 Cratosomus punctulatus mexicanus [ASUHIC 0031510] with thick fascicles of golden setae near the anterior apical margin and a dense setal brush at the posterior apical face 22 Pseudopiazurus centraliamericanus [ASUHIC 0086627] with a large, subapical premucro 23 Piazurus laetus [SSAC 0001077], showing a typical tibial apex for that genus 24 Acoptus suturalis [ASUHIC 0016915] 25 Cylindrocopturinus pictus [SSAC 0001288] with a pointed, premucro-like inner flange 26 Pseudolechriops klopferi [SSAC 0001060] showing an elongate, uncus-like inner flange. 27 Arachnomorpha circumlineata [ARTSYS 0000535] 28 Archocopturus medeterae [ASUHIC 16884] 29 Cylindrocopturus adspersus [ASUHIC 0016896] with a rounded, produced inner flange 30 Helleriella longicollis [ASUHIC 0065241] with a very short uncus 31 Lissoderes cecropiae [ASUHIC 0064707] with an elongate uncus and minute premucro 32 Phileas granulatus [ARTSYS 0000528] with the middle of the apex (between uncus and premucro) sunken 33 Peltophorus adustus [ASUHIC 0012325] with a short uncus and posterodistal setal comb extending halfway to the base of the tibia 34 Zygops erythropygus [ASUHIC 0086640] with short posterodistal setal comb. 35 Philenis flavipes [ASUHIC 0065102] 36 Philinna bicristata [ARTSYS 0000799] with a small tooth at the anterior apical angle.

Figures 37 - 45. Variation in eye shape. 37 Trichodocerus brevilineatus [ARTSYS 0000609] with large, subcontiguous eyes that continue below rostral insertion 38 Cratosomus punctulatus mexicanus [ASUHIC 0031510] with relatively small, widely separated eyes 39 Lobops bonvouloiri [ARTSYS 0000658] with widely separated eyes and the frons concave between the upper half of the eye 40 Pseudopiazurus centraliamericanus [ASUHIC 0086627] with very large eyes that are contiguous in upper half 41 Pseudopinarus guyanensis [ASUHIC 0086636] with large, subcontiguous eyes and an arcuate carina on the vertex of the head 42 Acoptus suturalis [ASUHIC 0016914] with subcontiguous eyes separated at the top by a lanceolate space 43 Cylindrocopturinus pictus [SSAC 0001288] 44 Macrocopturus lynceus [SSAC 0001085] with very large, partially contiguous eyes 45 Microzygops nigrofasciatus [ARTSYS 0000802] with large eyes contiguous in the bottom 2 / 3 and widely separated at the top.

Figures 55 - 66. Miscellaneous morphological structures. 55 Hoplocopturus sulphureus [ARTSYS 0000801] with an overlay showing an elongate second funicular article that is more than twice the length of the first 56 Lissoderes subnudus [SSAC 0001064] with an overlay showing a second funicular article that is subequal to the first, and seven distinct funicular articles 57 Philinna bicristata [ARTSYS 0000799] showing a funiculus composed of six articles 58 Microzurus sp. [SSAC 0001290] showing a short, slender fifth tarsal article and minute claws 59 Philides comans [ARTSYS 0000804] with a broad tooth at the base of the tarsal claw 60 Left metafemoral apex of Piazurus trifoveatus [SSAC 0001118] that is unarmed at the mesal and lateral faces 61 Left metafemoral apex of Cylindrocopturinus pictus [SSAC 0001288] with a tooth only at the mesal face 62 Left metafemoral apex of Peltophorus polymitus seminiveus [SSAC 0001117] showing a small tooth at both mesal and lateral faces 63 Left metafemoral apex of Hoplocopturus sulphureus [ARTSYS 0000801] showing a small tooth at the lateral face and an acuminate process at the mesal face 64 Metaventrite of Pseudopiazurus centraliamericanus [SSAC 0001291] showing deep, arcuate sulc 65 Lateral view of the metathorax of Euzurus ornativentris [ARTSYS 0000796] showing a large tubercle in anterior to the metacoxa 66 Dorsal view of the profemora of Copturomimus caeruleotinctus [SSAC 0001059] showing denuded, striolate regions.

Figures 75 - 78. Lateral and dorsal habitus images of Lechriopini. 75 a-b Copturomorpha sp. [ASUHIC 0086641] 76 a-b Copturus aurivillianus [ASUHIC 0024140] 77 a-b Coturpus arcuatus [ARTSYS 0000531] 78 a-b Cylindrocopturinus pictus [SSAC 0001288]. Scale bars = 2 mm.