Molecular Biology and Genetics
Statistics of barcoding coverage
Specimens with Sequences:2261
Specimens with Barcodes:1645
Species With Barcodes:397
Melolonthinae is a subfamily of the scarab beetles (family Scarabaeidae). It is a very diverse group; distributed over most of the world, it contains many familiar species. Some authors include the scarab subfamilies Euchirinae and Pachypodinae as tribes in the Melolonthinae.
Unlike some of their relatives, their habitus is usually not bizarre. They resemble the Rutelinae in being fairly plesiomorphic in outward appearance. Like in many Scarabaeidae, males have large fingered antennae, while those of the females are smaller and somewhat knobby. In the Melolonthinae, this sexual dimorphism is particularly pronounced. Many species have striking – though rarely brilliant or iridescent – hues and bold patterns of hairs.
Being often quite sizeable and swarming in numbers at certain times, for example the Amphimallon, Phyllophaga and Polyphylla "june beetles" or the Melolontha cockchafers – all from tribe Melolonthini – feature widely in folklore. Some Melolonthinae are economically significant pests. Other than the Melolonthini, the most diverse tribes are the Ablaberini, Liparetrini, Macrodactylini, Pachydemini and Sericini.
Several genera are of unclear relations; they are not yet firmly placed in a tribe:
Whether the scarab beetle Xenaclopus belongs in the present subfamily is doubtful. Alosimus, generally held to be a blister beetle of the Lyttini and not at all close to the scarabs, was placed in the Melolonthinae by entomologist Werner Heinz Muche.
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