Eggs of 14 species within two subfamilies (Edessinae and Pentatominae, tribes Carpocorini, Nezarini, Pentatomini, Procleticini, and one unplaced species) of neotropical pentatomids were studied with scanning electron microscopy, and their external morphology was characterized in detail (chorion surface, operculum, and aero-micropylar processes). Eggs of these species have similar characteristics to those already described for other pentatomids. Most of them are barrelshaped, except in Edessa meditabunda (with spherical eggs) and Odmalea basalis (whose eggs have flattened lateral faces). A “T”-shaped ruptor ovis is present in all studied species; eclosion line at the operculum rim may be visible or not. Average size of eggs (length x width) ranges from 0.9 ± 0.12 x 0.9 ± 0.05 mm (Euschistus picticornis) to 2.1 ± 0.12 x 1.7 ± 0.10 mm (Chinavia erythrocnemis); the number of the aero-micropylar processes ranges from 10 (C. musiva) to 86 (C. obstinata). Chorion surface has a variable aspect: eggs of Euschistus spp., Loxa deducta, and Pallantia macunaima have the spinose chorion type; C. erythrocnemis, C. longicorialis, C. obstinata, C. pengue, and Grazia tincta have a reticulate chorion; C. musiva, O. basalis, and E. meditabunda have a granulated chorion; and Thyanta humilis has a salebrose chorion type. All the species with described eggs in the Edessinae share the same diagnostic features. In Pentatominae, we did not identify shared characters among the species at subfamily or tribe level. Chorion sculpture pattern and aero-micropylar processes shape, as well as number, are diagnostic features at genus level; however, a few species could be identified in the egg stage.

In this paper, the monophyly of the genus Thoreyella Spinola was tested, and a hypothesis of relationships among its species is proposed. Four known species of Thoreyella and two new species, as well as species of three other genera of Procleticini (Neoderoploa Pennington, Lobepomis Berg, and Procleticus Berg), were treated as the ingroup. The new species of Thoreyella will be published elsewhere. Two species of Dendrocoris were used for outgroup comparison. A cladistic analysis of 38 morphological characters supported a hypothesis of common ancestry for Thoreyella and the three genera of Procleticini included in the ingroup. The results also showed Thoreyella as a monophyletic taxon, and its sister group relationship with the monophyletic group including Neoderoploa, Lobepomis, and Procleticus. The geographical distribution of these taxa is discussed.

ABSTRACT. Description of immature stages and notes on the biology of Phloea subquadrata (Heteroptera, Phloeidae). The eggs and five nymphal instars of Phloea subquadrata Spinola, 1837 are described and illustrated. Three new host plants are registered, and data on the development and biology of the insect are provided and discussed. KEYWORDS.Immatures, external morphology, biology, neotropics, Phloeidae. 98/05 PM -4° Versão RESUMO.Os ovos e os cinco estádios ninfais de Phloea subquadrata Spinola, 1837 são descritos e ilustrados. Três novas plantas hospedeiras são registradas, e dados sobre o desenvolvimento e a biologia do inseto são apresentados e discutidos.

Novas Espécies de Neotibilis Grazia & Barcellos (Hemiptera: Pentatomidae: Pentatomini) RESUMO-Três novas espécies de Neotibilis Grazia & Barcellos são descritas da Amazônia brasileira e do Equador, com base na morfologia geral e da genitália: Neotibilis (Neotibilis) claviformis sp. nov., Neotibilis (Neotibilis) ecuadorensis sp. nov. e Neotibilis (Neotibilis) manauara sp. nov. Ilustrações e uma chave para as espécies do subgênero Neotibilis são fornecidos. A distribuição conhecida de Neotibilis é ampliada, com novos registros para N. (N.) biguttata (Walker)-Brasil (Amazonas) e N. (N.) chiapensis (Thomas & Brailovsky)-Brasil (Roraima and Pará).

Revista Brasileira de Entomologia 55(3): 299-312, setembro, 2011 Thoreyella was proposed by Spinola (1850) to include T. brasiliensis Spinola, 1850. Three species were added subsequently: T. trinotata Berg, 1878, T. cornuta Berg, 1883 and T. taurus Jensen-Haarup, 1931. Rolston (1984 revised Thoreyella and distinguished it from Odmalea Bergroth by: juga contiguous distally, ostiolar rugae slightly curved, coria costal angle reaching little or not at all beyond scutellum, and frena just surpassing basal third of scutellum; in Odmalea the juga converge distally, but are normally not contiguous, ostiolar rugae straight, coria costal angle far surpassing scutellum, and frena extending beyond middle of scutellum. Also, Rolston (1984) included Thoreyella in a group of seven American genera of Pentatomini, all of them with a ventral spine or tubercle anteriorly-projected at the base of the abdomen: Aleixus McDonald, Brepholoxa Van Duzee, Dendrocoris Bergroth, Odmalea, Rio Kirkaldy, Pseudobebaeus Distant, and Thoreyella. In a conspectus of Procleticini genera, Rider (1994) broadened the concept of the tribe, including Thoreyella and five of the six related genera mentioned by Rolston (1984), the excluded genus being Rio. Rider (1994) also related Thoreyella to Dendrocoris and Odmalea; he distinguished Thoreyella from Dendrocoris by the apical spine of the femur in the former; to separate Thoreyella from Odmalea he followed Rolston (1984). Bernardes et al. (2009), in a cladistic analysis of Thoreyella and related genera, established the monophyly of the genus, including six species and supported by nine synapomorphies: humeral angles not emarginated; anterolateral margins of pronotum in an obtuse angle; lateral margins of scutellum straight; scutellum reaching or slightly surpassing the connexival segment VI; apex of femur with an acute spine; apex of the abdominal spine curved; sutural margins of the processes of the ventral rim of pygophore anteriorly convex and posteriorly parallel; posterolateral angles of the pygophore concave; anterior portion of the vesicular area of the ductus receptaculi strongly sclerotized and usually delimited by a constriction. Among Procleticini, Thoreyella has a sister-group relationship with the monophyletic clade (Neoderoploa Pennington + (Lobepomis Berg + Procleticus Berg)).In this paper, we review the genus Thoreyella, diagnose and redescribe all the known taxa. The two new species listed in Bernardes et al. (2009) as Thoreyella sp. nov. 1 e T. sp. nov. 2 are here described as Thoreyella maracaja sp. nov. and Thoreyella paraiba sp. nov, respectively. Also, new taxonomic arrangements, and a key for the species of Thoreyella are proposed. MATERIAL AND METHODSOne hundred and thirty five specimens were studied from the following collections (curator in parenthesis):

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