Insecta Mundi
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782
In April 2018, specimens of an asterolecaniid were collected on infested wild plants of Asclepias curassavica Linnaeus, 1753 (Gentianales: Asclepiadaceae) in Jiquilpan, Michoacan, Mexico. The collected specimens were identified as Planchonia stentae (Brain,1920) (Hemiptera: Asterolecaniidae). In this paper, we record for the first time the presence of P. stentae infesting A. curassavica in Mexico.
781
Three groups of beetles inhabit cones of cycads (Cycadales) in the northern hemisphere and are believed to be involved in their pollination. The primitive weevil subtribe Allocorynina (Coleoptera: Belidae) is restricted to the New World cycad genera Dioon Lindl. and Zamia L. One group of weevils (Curculionidae), found only in Cycas L., appears to be a relatively recent colonizer of northern hemisphere cycads. Members of the beetle subfamily Pharaxonothinae (Erotylidae) occur in all Asian and New World cycad genera. Phylogenetic trees of these beetles, based on DNA analysis and supported with morphological studies, are compared to patterns of continental drift and cycad phylogenies. Laurasian origins are suggested for these beetle groups with high latitude dispersal for at least one of these groups during periods of global warm climates.
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779
First record of the orchid bee Euglossa dilemma (Hymenoptera: Apidae) in Hispaniola, the Antilles
(2020)
The occurrence of the orchid bee Euglossa dilemma Bembé and Eltz (Hymenoptera: Apidae) is recorded for the first time for the island of Hispaniola in the Greater Antilles. Males were observed visiting varieties of sweet basil plants (Ocimum basilicum Linnaeus (Lamiaceae)) to obtain fragrances used during courtship and reproduction. Our observations showed that the species is established in Hispaniola and that it does not require the presence of orchids for reproductive success, being able to adapt to new plant resources it finds in the areas it colonizes. These observations correspond to what was found in Florida, United States, where Euglossa dilemma was also recently introduced. It is not clear how the species was introduced to Hispaniola, but Euglossa dilemma is clearly an adventive species that is colonizing the Antilles in addition to peninsular Florida.
778
Nothochodaeus yeti Huchet, new species, from Nepal and Sikkim (north India) and N. martensi Huchet, new species,from Nepal, are described and illustrated (Coleoptera: Scarabaeoidea: Ochodaeidae). A distribution map and an updated catalogue of the Ochodaeidae occurring on the Indian subcontinent are provided.
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Ancognatha aymara Mondaca, 2016 (Coleoptera: Scarabaeidae: Dynastinae: Cyclocephalini), a species previously known only from Chile, is recorded for the first time in northern Argentina. The new records are based on male specimens collected in the provinces of Jujuy and Salta. Illustrations of the habitus and male genitalia of the species are presented in color photographs. A map with its current distribution in Chile and Argentina is included.
775
Recent shipments of aquarium plants to pet stores in five Florida counties were found to be infested with an exotic delphacid planthopper. Rearing adult males allowed identification by morphological analysis. Molecular analysis confirmed that it was the same as authoritatively identified reference specimens of the planthopper, Opiconsiva anacharsis (Fennah) (new combination) (Hemiptera: Delphacidae), first reported from Florida in 1989 and known to be established only in Broward County. The host plants, Echinodorus spp. Rich. ex Engelm.(Alismatales: Alismataceae), originally from Thailand, were sold in enclosed plastic cylinders that provided a suitable environment for maintaining the planthoppers. Attempts to trace the shipment histories to these stores suggested a circuitous multi-state pathway leading to a Broward County, Florida, business that receives aquatic plants from Southeast Asia. While the infestation of these plants may have occurred in Florida, trade in semi-emergent aquatic plants is shown to be a potential pathway for introduction for insect pests.
774
Salacia crassifolia (Mart. ex Schult.) G.Don., (Celastraceae) is a native species of shrub/tree highly appreciated in Brazil for its fruits and medicinal properties. Scale insects have never been reported associated with S. crassifolia; nevertheless, this paper describes the occurrence of two diaspidids on S. crassifolia leaves in Brazil. Three mature trees were inspected in February and March 2018 and scale insect samples were collected and preserved in 70% alcohol, then mounted and identified under an optical microscope. Two species of scale insects were found associated with this plant, Pseudoparlatoria argentata Hempel and Melanaspis aristotelesi Lepage and Giannotti, both from the family Diaspididae (Hemiptera). The three observed trees were infested by the diaspidids, with some leaves completely colonized by both species. This is the first reported occurrence of P. argentata and M. aristotelesi in plants of the Celastraceae family. It is also the first report of these insects in the Distrito Federal, Brazil, expanding the distribution and hosts in native plant species of the Cerrado biome.