A Revision of Neomegalotomus (Hemiptera: Alydidae)

Abstract

Neotropical Entomology 37(1): 030-044 (2008) Revisão de Neomegalotomus (Hemiptera: Alydidae) RESUMO -Duas espécies de Neomegalotomus, N. parvus (Westwood), a espécie tipo, e N. rufi pes (Westwood) são reconhecidas. As duas espécies são redescritas a partir de espécies tipo e a chave para identifi cação é apresentada. As seguintes espécies são sinonimizadas com Neomegalotomus parvus: N. simplex (Westwood), N. latifascia (Berg), e N. pallescens (Stål) (todas novas sinonímias). N. jamaicensis (Westwood) é sinonimizada com N. rufi pes (nova sinonímia). As espécies tipo de todas as espécies até agora colocadas no gênero são também redescritas, exceto N. debilis (Walker) e N. vicinus (Westwood). N. parvus ocorre do México através da América Central até o norte da Argentina e em direção à Venezuela e ilhas caribenhas adjacentes ao leste. N. rufi pes encontra-se espalhada no sul do Caribe em direção à Venezuela. As duas espécies se sobrepõem em distribuição: N. parvus é encontrado em St. Vincent e Tobago, enquanto N. rufi pes ocorre em Grenada, a qual situa-se entre essas duas ilhas. PALAVRAS-CHAVE: Heteroptera, praga-da-soja, neotrópicos, Caribe ABSTRACT -We recognize two species in Neomegalotomus, N. parvus (Westwood), the type species; and N. rufi pes (Westwood). The two species are redescribed from type specimens, and are keyed. We synonymize the following species with Neomegalotomus parvus: N. simplex (Westwood), N. latifascia (Berg), and N. pallescens (Stål) (all new synonymies). We synonymize N. jamaicensis (Westwood) with N. rufi pes (new synonymy). The type specimens of all species hitherto placed in the genus are also redescribed, except those of N. debilis (Walker) and N. vicinus (Westwood). N. parvus occurs from México through Central America into northern Argentina and east into Venezuela and adjacent Caribbean islands. N. rufi pes is widespread in the Caribbean south towards Venezuela. The two species overlap in distribution: N. parvus is found on St. Vincent and Tobago, whereas N. rufi pes occurs on Grenada, which lies between those two islands.

Diversity of true bugs from Iguazú National Park, Argentina

“…org:TaxonName:459027 Distribution. Argentina, Barbados, Belize, Bolivia, Brazil, Costa Rica, Ecuador, French Guiana, Guatemala, Guyana, Honduras, Mexico, Nicaragua, Panama, Paraguay, Peru, St Vincent, Salvador, Tobago, Trinidad, Uruguay, and Venezuela (Schaefer and Ahmad 2008). Remarks.…”

Broad-Headed Bugs (Alydidae)

“…N. simplex (Westwood), N. latifascia (Berg), and N. pallescens Stål were all synonymized with N. parvus (Schaefer & Ahmad 2008 ).…”

“…parvus (Westwood) occurs in the Neotropics between 24° N and 30° S longitude; the northernmost are from central Mexico on the west and St. Vincent and Barbados on the east; the southernmost distribution is northern Argentina, southern Brazilian states, and Uruguay (Schaefer and Ahmad 2008 ); these authors do not include Rio Grande do Sul, the southernmost state of Brazil, where specimens of N. parvus have been collected recently (in Passo Fundo, 28 ° S, AR Panizzi, unpublished).…”

“…This second species in the genus Neomegalotomus , N. rufi pes , occurs from southeastern Florida south to Central America and the West Indies islands in the Caribbean, including Antigua, Bahamas, Cuba, Dominican Republic, Grand Cayman, Grenada, Guadeloupe, Jamaica, Martinique, Puerto Rico, St. Lucia, and St. Martin; despite its affi nity to legumes, apparently it is not a pest in these islands (Schaefer and Ahmad 2008 The reference to the occurrence of Neomegalotomus rufi pes in São Paulo state in Brazil on cotton, on sunn hemp, Crotalaria juncea L., on the legume Macroptilium heterophyllum (Humb. and Bonpl.…”

Attractant Pheromone of the Neotropical SpeciesNeomegalotomus parvus(Westwood) (Heteroptera: Alydidae)

“…As other alydines, N. parvus is an oligophagous bug that feeds on immature seeds of legumes [1,2]. The taxonomic status of Neotropical alydine bugs was reviewed by Schaefer and Panizzi [3], Schaffner and Schaefer [4], Schaefer [5], and Schaefer and Ahmad [6]. From these works, Neotropical species formerly classified in the genus Megalotomus are now grouped in the genus Neomegalotomus, and South American species of Neomegalotomus were synonymized as N. parvus.…”