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Twigs are an understudied habitat utilized by many beetle species. Samples of twigs were collected in all six Level III Ecoregions in Louisiana during April and May 2013. The twigs were maintained in emergence chambers from which 942 specimens of adult Coleoptera were obtained, representing 31 families, 111 genera, and 128 species. Beetle richness and composition were not significantly different among ecoregions. Three species collected represent new state records: Pseudochoragus nitens (LeConte) (Anthribidae); Dryotribus mimeticus Horn (Curculionidae); and Narthecius grandiceps LeConte (Laemophloeidae). Four non-native species, all Curculionidae, were collected: Cyrtepistomus castaneus (Roelofs) (Entiminae); Cnestus mutilatus (Blandford) (Scolytinae); Xylosandrus crassiusculus (Motschulsky) (Scolytinae); and Xylosandrus germanus (Blandford) (Scolytinae).

The Palearctic root weevil Otiorhynchus porcatus (Herbst) (Curculionidae: Entiminae) is recorded for the first time in the United States on Appledore Island, Isles of Shoals, Maine. A summary of other published North American records of this immigrant species is given. Also included are distribution records for 16 other adventive weevils collected on five of the nine islands comprising the Isles of Shoals. These 16 species are Perapion curtirostre (Germar), Cosmobaris scolopacea Germar, Ceutorhynchus erysimi (Fabricius), Ceutorhynchus obstrictus (Marsham), Ceutorhynchus pallidactylus (Marsham), Rhinoncus pericarpius (Linnaeus), Tychius meliloti Stephens, Tychius stephensi Schonherr, Barypeithes pellucidus (Boheman), Otiorhynchus sulcatus (Fabricius), Trachyphloeus bifoveolatus (Beck), Donus zoilus (Scopoli), Hypera meles (Fabricius), Hypera rumicis (Linnaeus), Larinus planus (Fabricius), and Magdalis barbicornis Latreille.

Two metallic green species of Pandeleteius Schonherr, 1834, Pandeleteius anneae Anderson and Ivie, new species (type locality: US Virgin Islands, St. Thomas) and Pandeleteius metallicus Anderson and Ivie, new species (type locality: Dominican Republic, Puerto Plata), are described. The two new species are easily distinguishable from other West Indian species in the genus by the metallic green scales, a deeper and more v-shaped epistomal ridge, and less strongly deflexed scrobes. The species are very similar and separable with confidence only on the basis of distribution, body size, and structure of female genitalia (male not known for P. anneae).

Five new species of the genus Pandeleteius Schonherr from South America are described: Pandeleteius emarginatus Giron and Howden, new species, from Brazil; Pandeleteius genieri Giron and Howden, new species, from Brazil and Peru; Pandeleteius obrienorum Giron and Howden, new species, from Ecuador and Peru; Pandeleteius pavo Giron and Howden, new species, from Peru; and Pandeleteius tupi Giron and Howden, new species, from Brazil. Photographs of the habitus and genitalia and a distribution map are presented along with a list of the species of Pandeleteius known from Brazil, Ecuador, and Peru. This paper constitutes the last contribution of Anne T. Howden on the taxonomy and biodiversity of the genus Pandeleteius.

Phacepholis Horn is a lineage of the Pantomorus-Naupactus complex (Curculionidae: Entiminae: Naupactini) that evolved in North and Central America independently from the species traditionally assigned to Pantomorus Schoenherr. The genus includes 13 species, five distributed in North America and eight in Mexico and Central America. The Mexican-Central American species are Phacepholis globicollis (Pascoe), Phacepholis brevipes (Sharp), Phacepholis trituberculatus (Champion), Phacepholis albicans (Sharp), Phacepholis viridicans (Sharp), Phacepholis strabo (Sharp), Phacepholis howdenae Lanteri and del Rio, new species (type locality: Zacapa, Guatemala) and Phacepholis burkei Lanteri and del Rio, new species (type locality: Guerrero, Mexico). Phacepholis annectens (Sharp) is a junior synonym of P. brevipes, new synonymy. Lectotypes are designated for Pantomorus brevipes Sharp, Pantomorus annectens Sharp, Pantomorus trituberculatus Champion, Pantomorus albicans Sharp, and Pantomorus viridicans Sharp. Among the eight species of the P. globicollis species-group, six species are endemic to Mexico and two, P. strabo and P. howdenae, range into Central America. The Neotropical Phacepholis mainly differ from the Nearctic species by being larger, with longer antennae, the more convex male pronotum, and the spermathecae subglobose rather than globose. We provide descriptions or redescriptions of the eight species of Phacepholis from Mexico and Central America, a dichotomous key for their identification, habitus photographs, line drawings of male and female genitalia, and distribution maps.

The genus ParanametisBurke, 1960 is revised for North America (including northern Mexico). Paranametis distinctaBurke, 1960 is known from western Texas, New Mexico, and northern Mexico. Phyxelis latirostrisBlatchley, 1916 is resurrected from synonymy with Phyxelis rigidus (Say, 1832) and treated as a valid species transferred to the genus Paranametis as Paranametis latirostris (Blatchley, 1916), resurrected status, new combination. Two new species are described herein: Paranametis burkei Anderson, new species (type locality Big Bend National Park, Brewster County, Texas); and Paranametis howdenae Anderson, new species (type locality Mexico, Nuevo Leon, 5.3 mi. S La Escondida). All species are described or redescribed, natural history information is summarized, and a listing of locality data from all specimens examined is included and mapped. A key is provided to the species of the genus. All species are represented by habitus images and images of taxonomically significant structures. Paranametis species share a similar ramose/papillate/microfilamentous scale form with species of the genera Phyxelis Schoenherr, 1843 and LeptopinaraO'Brien, 1981, which is unique among North American Byrsopagini.

Two new species of Isodrusus Sharp are described herein: I. howdenae Cortes-Hernandez and Anderson, new species, from Oaxaca, Mexico; and I. curacaoensis Cortes-Hernandez and Anderson, new species, from Christoffel National Park, Curacao, which represents the southernmost occurrence of any described species of the genus. Isodrusus howdenae can be separated from other Isodrusus by the presence of a tooth on the lateral prothoracic margin where the vibrissae are set, the sinuate inner edge of the mesotibiae with two or three small teeth, the lack of a median sulcus on the rostrum, and a small fovea present between the eyes. Isodrusus curacaoensis is distinct in having legs with only one tarsal claw, elytra in lateral view almost evenly arcuate without an abrupt apical declivity, no postocular vibrissae, the antennal scrobe visible in dorsal view, the bowed scape bowed, scales with ecarinate margins, and the anterior margin of the epistome emarginate. A revised key to the species of Isodrusus is provided.

The genus AporiusKuschel, 1955, described based on the single species Hadropus brevipennisChevrolat, 1879 from French Guiana, is herein transferred from the tribe Tanymecini, subtribe Piazomiina to the tribe Naupactini, new tribal placement, because it shares the typical characters of this tribe, except the presence of connate tarsal claws. Within Naupactini, Aporius is probably related to Hadropus Schoenherr, 1826, based on the morphology of the rostrum, antennae, and genitalia. We redescribe and illustrate the genus Aporius and its single species, and we provide a key to separate it from Hadropus. We also discuss the taxonomic status of the remaining members of South American Piazomiina and assign the genus Galenactus Kuschel to Leptopiini, new tribal placement, thus removing Piazomiina from occurrence in South America.

Kosmimodes howdenae Setliff, new genus and new species, is described for a brilliant metallic green broad-nosed weevil from the dry forests of Pedernales Province in the Dominican Republic. Kosmimodes is closely related to Apotomoderes Dejean and Melathra Franz in the tribe Geonemini and distinguished from these genera by the form of the constriction on the head behind the eyes, shape of the nasal plate and median sulcus on the rostrum, and the lack of a tooth on the profemora. Images of the habitus and male genitalia and a diagnosis accompany the description. The new species is named in honor of the late Anne Howden (1927–2016) in recognition of her considerable contribution to our knowledge of Neotropical Entiminae.

Melathra huyenae Franz, new genus and new species, is described to accommodate an enigmatic species of entimine weevil (Coleoptera: Curculionidae: Entiminae) from southwestern Hispaniola. The new genus is closely related to Apotomoderes Dejean and therefore placed in the tribe Geonemini Gistel, but is distinguished by the following unique suite of features: labial palps 2-segmented; post-epistomal region not depressed; scrobe passing over eye; profemur with a small cuticular tooth; metatibial apex simple; elytral humeri not well-defined; wings reduced; female sternum VIII elliptical; spermatheca with corpus swollen; and aedeagus with groups of setae present in dorsal subapical region, flagellum sclerotized, and with paired anterior, narrowly plicate sclerites. The single constituent species M. huyenae is characterized by a uniformly grey-silver to brown scale coverage which is most conspicuously interrupted by two anteromesally positioned rusty brown spots on the elytra. Melathra huyenae is apparently narrowly endemic to the coastal dry forest habitat of the Jaragua National Park. The host plant associations remain unknown.

Enaptorhinus shansiensis Han & Zhang, new species is described from China with a discussion of key characters and relationships between the new species and other members of the genus. Keys to the species of both male and female adult Enaptorhinus Waterhouse are presented. Illustrations of diagnostic features of the new species are provided. All type specimens are deposited in the Institute of Zoology, Chinese Academy of Sciences in Beijing, China.

Trichaptus Pascoe is a genus of broad-nosed weevils (Curculionidae: Entiminae: Naupactini) endemic to Brazil with a single species, T. mutillarius (Perty), that resembles wasps of the family Mutillidae (Hymenoptera), particularly those of the tropical genera Traumatomutilla Andre and Hoplomutilla Ashmead. Based on morphological characters of the antennae, eyes, mouthparts, legs, and female and male genitalia, Trichaptus is closely related to Briarius [Fischer de Waldheim] (syn. of Lamprocyphus Marshall). The purpose of this contribution is to redescribe Trichaptus, to diagnose its only known species, and to illustrate its diagnostic features, including genitalia and mouthparts. This information is necessary to undertake a phylogenetic analysis of the whole Naupactini tribe, our main research goal.