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A key, an annotated checklist with detailed distribution, biological and host information, and color photographic plates are provided for the 91 species of dacine fruit flies (Diptera: Tephritidae: Dacini) known to occur in Oceania. Dacus virgatus Coquillett, previously a synonym of Bactrocera psidii (Froggatt), is instead considered a junior synonym of B. facialis (Coquillett). The species originally described in 1971 as Dacus (Asiadacus) perpusillus Drew, later reassigned as Bactrocera (Sinodacus) perpusilla (Drew) and in recent years as Zeugodacus (Sinodacus) perpusillus (Drew) actually belongs to genus Dacus, and is transferred back to Dacus, but to the subgenus Neodacus, restored combination. The presence of B. redunca (Drew) is recorded for the first time in New Caledonia. New male lure records include isoeugenol and dihydroeugenol for both B. neoxanthodes Drew and Romig and B. quadrisetosa (Bezzi) and zingerone for Dacus taui (Drew and Romig), all in Vanuatu.
ZooBank registration. urn:lsid:zoobank.org:pub:A105F057-F2A4-4C14-B82E-14912B319D57
A key, an annotated checklist with detailed distribution, biological and host information, and color photographic plates are provided for the 91 species of dacine fruit flies (Diptera: Tephritidae: Dacini) known to occur in Oceania. Dacus virgatus Coquillett, previously a synonym of Bactrocera psidii (Froggatt), is instead considered a junior synonym of B. facialis (Coquillett). The species originally described in 1971 as Dacus (Asiadacus) perpusillus Drew, later reassigned as Bactrocera (Sinodacus) perpusilla (Drew) and in recent years as Zeugodacus (Sinodacus) perpusillus (Drew) actually belongs to genus Dacus, and is transferred back to Dacus, but to the subgenus Neodacus, restored combination. The presence of B. redunca (Drew) is recorded for the first time in New Caledonia. New male lure records include isoeugenol and dihydroeugenol for both B. neoxanthodes Drew and Romig and B. quadrisetosa (Bezzi) and zingerone for Dacus taui (Drew and Romig), all in Vanuatu.
ZooBank registration. urn:lsid:zoobank.org:pub:A105F057-F2A4-4C14-B82E-14912B319D57
Der Befallsdruck durch den Erbsenwickler Cydia nigricana Fabricius (Lepidoptera: Tortricidae) hat in den letzten Jahren mit zunehmendem Erbsenanbau in allen Anbaugebieten stark zugenommen. Bedingt durch Ertragsausfälle und Qualitätsminderungen bei Futter- und Saaterbsen sowie durch eine sehr geringe Schadtoleranz von nur 0,5% bei der Gemüseerbsenproduktion ist C. nigricana heute einer der Hauptschädlinge im Erbsenanbau (Pittorf & Matthes 2004, Saucke et al. 2004, Jostock 2006). Gegenwärtig stehen im ökologischen Landbau keine wirksamen Methoden zur Kontrolle des Erbsenwicklers zur Verfügung. Infolgedessen gewinnen präventive Maßnahmen bei der Schädlingsregulierung zunehmend an Bedeutung (Schultz & Saucke 2005, Huusela-Veistola & Jauhiainen 2006). Ein Konzept zur Risikobewertung des Erbsenwicklerbefalls in Anbauregionen von Gemüseerbsen kombiniert mit einer bedarfsgerechten Option zur Direktbekämpfung soll in diesem Projekt entwickelt werden. Zur Einschätzung des Befallsrisikos soll eine empirische Begleitung und Dokumentation von Erbsenwicklerschäden in Anbauregionen von Gemüseerbsen unter Berücksichtigung der Anbauintensität von Körnererbsen erfolgen. Zusätzlich soll eine darauf abgestimmte kombinierte Anwendung von präventiver Anbauplanung und dem Einsatz natürlichen Pyrethrinen erarbeitet werden.
Thirty-four species of dacine fruit flies (Diptera: Tephritidae) were recorded in Bangladesh, based on field surveys carried out between 2013 and 2020. Five species are reported in Bangladesh for the first time: Bactrocera aethriobasis (Hardy), B. limbifera (Bezzi), B. melania (Hardy and Adachi), B. nigrifemorata Li and Wang, and Dacus jacobi David and Sachin. The attraction of B. nigrifemorata to cue-lure is a new male lure association. An annotated checklist and illustrated key to the species are provided.
The tortoise beetle, Cassida sphaerula Boheman, 1854 (Coleoptera: Chrysomelidae: Cassidinae: Cassidini) is endemic to South Africa. Its endemic host, Arctotheca prostrata (Salisb.) Britten (Asteraceae) has been introduced in other countries where it is becoming invasive. Cassida sphaerula could provide a potential biocontrol of Arctotheca weeds as it spends the entire life cycle on this host. An intensive field study, with rearing, photography, and short films of C. sphaerula was conducted in its native habitat to document the life cycle. A checklist of Cassidinae genera in South Africa, along with 19 new host records for Cassidini species in South Africa are presented. Oothecae are simple, with few laminate membranes enclosing fewer than five eggs. There are five larval instars. Larvae and adults feed by making a series of cuts in the ventral cuticle, forming an arc, and they consume the mesophyll as the cuticle is rolled to one side. This creates many ventral craters, thickened on one margin with the rolled cuticle; these ventral craters correspond to ‘windows’ in the dorsal leaf surface where the dorsal cuticle is left intact. This unusual feeding pattern is known in three Cassida species, all in South Africa. Like many tortoise beetles, instar I initiates a feces-only shield on its paired caudal processes (= urogomophi); this construction is retained, along with exuviae, by subsequent instars. The shield construction was studied by film and dissections. This revealed that the columnar or pyramidal shield in this species has an exterior of dry or moist feces that obscures the central nested stack of exuviae, each exuviae compressed onto the caudal processes. Pupae may retain the entire larval shield of exuviae and feces or only the 5th instar exuviae; this behavioral flexibility in pupal shield retention is novel for tortoise beetles. Behaviors of C. sphaerula are discussed in the context of phylogenetic characters that can give evolutionary insights into the genus, tribe, and subfamily.
ZooBank registration. urn:lsid:zoobank.org:pub:4AC56F98-6474-4AAD-A2A9-51AE2F39A1E1
First record of the beekeeping pest Aethina tumida Murray (Coleoptera: Nitidulidae) for Honduras
(2024)
Aethina tumida Murray (Coleoptera: Nitidulidae) (also known as the small hive beetle), an important pest in apiaries, is reported from Honduras for the first time, new country record. The precise distribution in the country is unknown, and no damage related to it has been observed. Photographs are provided to aid in its identification. Differentiation of A. tumida from Aethina villosa Reitter and Aethina quadrata Sharp, which also occur in Honduras, is provided.
ZooBank registration. urn:lsid:zoobank.org:pub:DAF12C6A-0F8C-4151-9C4D-F191CCC4032F
Brachyplatys subaeneus (Westwood) (Hemiptera: Plataspidae) es una especie de chinche originaria de Asia que fue reportada en 2016 por primera vez en Panamá y las Américas. Dicha especie es un organismo invasor considerado como una plaga potencial para los cultivos de guandú (Cajanus cajan (L.) Huth) y otras leguminosas. Debido a que no se había trabajado más en este chinche desde su reporte, este estudio busca generar información respecto a su distribución geográfica en el país, focalizada a lo largo de la costa Pacífica de Panamá, desde Tortí, Panamá Este, hasta la región de Chitré, provincia de Herrera. A pesar de presentar esta distribución consideramos que esta especie invasora puede tener ámbitos de distribución más amplios en Panamá, tomando en cuenta el hecho de que es una especie con una alta tasa de reproducción y colonización.
Spondias purpurea L. (Anacardiaceae), native to the Neotropical region, is cultivated in the Philippines for the edible fruits and the tree is economically significant. The adventive leaf beetle, Podontia quatuordecimpunctata (L.) (Chrysomelidae: Galerucinae: Alticini), has become a major defoliating pest of the tree in the country. The Philippines government has initiated study of the pest, now locally called the sineguelas leaf beetle (SLB). This paper reports the results of a one-year field study on the biology of SLB on S. purpurea (red sineguelas), in Batangas City, Philippines. The SLB eggs hatch in 5–7 days. The larval period is 14–16 days with 4 larval instars, the pre-pupal period is 2–3 days, and the pupal period is 15–22 days. The total life cycle from egg to adult emergence is completed within 36–48 days. Host-choice experiments revealed that different stages of SLB do not feed on carabao mango (Mangifera indica L.) or pili (Canarium ovatum Engl.), however, they fed a little but did not survive or reproduce on cashew (Anacardium occidentale L.). A predatory bug (Eocanthecona furcellata Wolff., Hemiptera: Pentatomidae) is a potential natural enemy. Unidentified fungi infecting the pupae and adults of SLB were also recorded.
ZooBank registration. urn:lsid:zoobank.org:pub:28A1186E-589B-481A-A868-DE8C1E994352