Revision of trachyderines related to Sphaenothecus from North America with description of three new genera, and new species of Lophalia Casey, 1912, Mannophorus LeConte, 1854, and Ischnocnemis Thomson, 1864 (Coleoptera: Cerambycidae: Cerambycinae: Trachyderini) Author Eya, Bryan K. California Academy of Sciences 55 Music Concourse Drive, Golden Gate Park, San Francisco, CA 94118 USA text Insecta Mundi 2024 2024-07-26 2024 61 1 94 journal article 10.5281/zenodo.14662132 1942-1354 14662132 5671A77B-2ECB-445F-8F61-246A9E442CDE Lophaliamorpha luteicollis ( Bates, 1885 ) , new combination ( Fig. 109–127 ) Sphenothecus luteicollis Bates 1885: 329 ; Chemsak 1967: 79 (lect.) Sphaenothecus luteicollis Aurivillius 1912: 472 (cat.); Blackwelder 1946: 589 (cat.); Chemsak et al. 1992: 86 (cat.); Monné 1994: 63 (cat.); Monné and Giesbert 1994: 151 (cat.); Noguera and Chemsak 1996: 403 (dist.). Ischnocnemis luteicollis Chemsak and Noguera 1998: 12 (comb. nov.); Toledo-Hernández 2005: 419 (dist.) Redescription. Male: Length 15–22 mm . Form moderate sized, elongate; head, antennae, sternum, legs black, abdomen dark reddish, pronotum ochraceous or reddish with irregular black macula usually in middle of basal half or disc occasionally all black, elytra ochraceous or reddish, scutellum dark reddish black to black; each elytron with three glabrous, elevated, longitudinal vittae. Head small; vertex coarsely, confluently punctate; front finely, confluently punctate; postclypeus finely, densely punctate on lower half, upper half with impunctate or irregularly punctate median polished area; genae glabrous, bottom half triangular, finely punctate beneath; labrum finely punctate; pubescence moderately dense, short, erect around base of antennal insertion, postclypeus and labrum; antennae exceeding elytral apices by two antennomeres; scape conical densely, contiguously punctate with very short suberect setae above and longer depressed setae underneath; antennomeres II–VI minutely, densely punctate, densely clothed with short, dark, depressed setae, remaining antennomeres opaque, minutely, densely punctate, densely covered with minute, appressed pubescence with few longer depressed setae on apices; antennomeres from apical half of III vaguely carinate on outer and inner surface; antennomere III longer than I; IV shorter than III; V longer than IV, subequal to III; VI shorter than V, subequal to IV; VII, VIII, IX and X subequal to VI; XI longest, apical two-fifth vaguely appendiculate. Pronotum wider than long (L/W: 0.77), sides obtusely tuberculate; disc with basal two-thirds impressed in middle, apical half with broad callus on each side, basal half also broadly callused on each sides near margin, sides above lateral tubercles arcuately impressed, surface cribriform or alveolate punctate with small, elongate, polished, black, impunctate area near base; setae short, erect arising from each puncture; apex narrowly constricted, margin collared; base impressed at sides; proepisternal area moderately, densely, irregularly punctate; prosternum shallowly impressed, apical half transversely plicate or striate-punctate, basal half on each side above coxae with delimited, finely punctate, transverse subrectangular area with erect, golden setae; mesosternum finely, densely punctate, glabrous on sides below mesepisterna, pubescence short, opaque, erect; metasternum nitid, punctures sparse, coarse and shallow, pubescence short, opaque, depressed, area adjacent to mesocoxae more densely punctate; metepisterna finely, densely, contiguously punctate with larger punctures interspersed, densely clothed with short, appressed, whitish setae. Scutellum sparsely punctate, reddish brown to black, darker than elytra. Elytra 2.7 times as long as broad; each elytron with three raised costae not attaining apex, punctures on sutural intervals and between costae coarse, alveolate with dark center; pubescence minute, suberect; apices serrate truncate with exterior angle obtusely angulate, sutural angle minutely dentate or angulate. Legs slender; femora slightly clavate, coarsely, densely punctate, dorsum sparsely clothed with short, depressed setae, inner surface clothed with suberect, golden setae, meso- and metafemora arcuate near base; metafemora falling far short of elytral apices; tibiae coarsely, deeply, contiguously punctate, clothed with short, depressed setae; protibiae with inner surface densely clothed with short depressed, golden pubescence; metatarsomere I subequal to or slightly longer than tarsomeres II and III combined. Abdomen nitid, sparsely, punctate in middle, clothed sparsely with long depressed setae, sides more densely punctate, clothed with shorter appressed setae; apex of last sternite truncate. Figures 109–127. Lophaliamorpha luteicollis (Bates) comb. nov. , dorsal and lateral images: 109–110) Male, 19 mm, Jalisco, MEX. 111–112) Female, 20 mm, Jalisco, MEX. 113–114) Male,19 mm, Jalisco, MEX. 115–116) Female, 20 mm, Jalisco, MEX. 117–118) Male, 19 mm, Jalisco, MEX. Head: 119) Front short, mid-cranial sulcus (red arrow) deeply canaliculate extending from frontoclypeal sulcus (green arrow) to vertex. 120) Lateral profile with gena narrow (green arrow). 121) Frontolateral profile with antennal tubercles elevated, divergent (red arrows), side of mandibles angulate (blue arrow). Pronotum: 122) Disc hexagonal, sides arcuately impressed (red arrow) above lateral tubercles. Thorax lateral image: 123) Basal 2 / rd of pronotal 3 disc impressed in middle (red arrow), mesosternal intercoxal process protuberant (blue arrow), submarginal costa of each elytron starting below humerus (green arrow). Elytra: 124) Each elytron with three distinct costae (blue arrows). 125) Apices obliquely truncate, exterior angle minutely dentate (red arrow). 126) Apices with exterior angle obtusely angulate (red arrow). Metatarsi: 127) Metatarsomere 1 (T 1 ) subequal (green brackets) to or longer than tarsomeres 2+3 (T 2+3 ), T 1 / T 2+3 : 1.10. Comparison of metatarsi to Lophalia : 128) Metatarsi of Lophalia cyanicollis , male, metatarsomere 1 (T 1 ) subequal (green brackets) to or shorter than tarsomeres 2+3 (T 2+3 ), T 1 / T 2+3 : 0.92. Female: Length 17–22 mm . Form slightly more robust than male, parallel-sided. Prosternum with basal half cribrate or alveolate punctate, lacking the delimited, punctate area before coxae; proepisternal area cribrate punctate. Antennae shorter, not attaining apices of elytra. Abdomen with apex of last sternite broadly truncate. Materials examined. MEXICO : Jalisco : 5.2 km S. El Tuito , Hwy 200, 25 Oct. 1995 , B.K. Eya ( 9 males , 3 females , BKEC ) ; 5.8 km S. El Tuito , Hwy 200, 12 Oct. 1995 ,B.K. Eya ( 1 male , 1 female , BKEC ) ; 6.9 km. S. El Tuito , Hwy 200, 13 Oct. 1995 , B.K. Eya ( 2 males , 1 female , BKEC ) ; 12.3 km S. El Tuito , Hwy 200, 12 Oct. 1995 , B.K. Eya ( 1 female , BKEC ) ; 35.9 km. N.E. of Melaque Jct. Hwy 80, 29 Oct 1995 , B.K. Eya ( 4 males , BKEC ) ; 4.8 km S. La Huerta , Hwy 80, 15 Oct. 1995 , B.K. Eya ( 1 male , BKEC ) ; Volcan de Tequila , 1300 m , 13/ 15 Oct. 2009 , G. Noguiera ( 2 males , BKEC ) ; 4.3 km. N.E. Talpa de Allende near San Rafael , 20 Oct. 1995 , B.K. Eya ( 1 female , BKEC ) ; 15 mi. N.E. Guadalajara , 17 Sept. 1970 , R.M. Bohart ( 1 male , BKEC ) ; Ajijic , Lake Chapala , 19 Oct. 1995 , B.K. Eya ( 12 males , 1 female , BKEC ) ; Chapala , 1500 m , 9/ 10 Oct. 1996 , G. Noguiera ( 1 female , BKEC ) ; Chapala , 1500 m , 08 Oct. 1999 , G. Noguiera ( 1 male , BKEC ) ; 9.3 km S. of Sayula , Hwy 432, 18 Oct. 1995 , B.K. Eya ( 6 males , 4 females , BKEC ) ; 9.3 km S. of Sayula , Hwy 432, 26 Oct. 1995 , B.K. Eya ( 2 males , BKEC ). Nayarit : 14.4 rd mi. E. Ixtlan del Rio , 4 Oct. 1970 , T.J. and J.W. Cohn ( 1 female , BKEC ) . Discussion. According to Bates (1885: 329) this species is very elongate and sublinear. Dorsum is depressed and the body is black and nitid. Thorax above is yellowish orange with black, irregular, smooth macula, and elytra are testaceous-yellow. Head and thorax are coarsely, confluently punctate. Thorax is relatively short with middle dilated and angulate laterally. Scutellum is wide triangular with apex prolonged and acute. Elytra of male are gradually narrowed posteriorly, those of female are elongate and oblong, and apices are truncate. There are three, prominent, smooth costate on each elytron, which is closely punctate on either side. Mesosternum is triangular and protuberant. Antennae are longer than body in male, those of female are scarcely shorter, and antennomere 11 is not appendiculate. Tarsi are broad and short. Length 8–9 lines ( 16–19 mm ), male and female. Habitat reported by Bates is Mexico , Guanajuato . Bates (1885: 329) notes that this species was “named Ischnocnemis luteicollis by Dugès,” and was found in the Sallé collection, but apparently it was undescribed. Bates further notes, “although its form and color are similar to the female I. costipennis Thomson it cannot be referred to as an Ischnocnemis Thomson due to the elevated and prominent mesosternal intercoxal process, which is the only constant character at the time that distinguishes Sphaenothecus Dupont from Mannophorus LeConte and Ischnocnemis .” Also, Bates (1892: 179) considers Sphaenothecus cribellatus Bates with facies of Sphaenothecus but with less prominent mesosternal intercoxal process as an indication of “a transition-form to Ischnocnemis .” Subsequently, Chemsak and Noguera (1998: 12) in their review of the genus Sphaenothecus provisionally transferred Sphaenothecus cribellatus Bates and Sphaenothecus luteicollis Bates into Ischnocnemis as new combinations noting that, “a study of the genus will be necessary to determine the validity of the reassignments.” Lophaliamorpha luteicollis new combination can easily be distinguished from other species by the reddish to ochraceous elytra with three prominent, glabrous, narrow costae. The pronotum is hexagonal and angulate at sides, and the disc is cribrate or alveolate punctate, and depressed in middle of basal half. The species name “ luteicollis ” or “yellow neck” is in reference to its reddish yellow pronotum as in Peltodonia luteicollis (Pace) , Coleoptera , Staphylinidae ( Pace 2014 ) .