Molecular Phylogeny of Dermestidae (Coleoptera) Reveals the Polyphyletic Nature of Trogoderma Latreille and the Taxonomic Placement of the Khapra Beetle Trogoderma Zhou, Yu-Lingzi Nicholls, James A. Liu, Zhen-Hua Hartley, Diana Szito, Andras Insect Systematics and Diversity 2022 2022-11-11 6 6 1 24 Leach 1815 [818,975,1676,1699] Insecta Dermestidae Animalia Coleoptera 14 15 Arthropoda subFamily Megatominae  ssnonsmized  Neoanthrenuswith  Anthrenussubgenus  NathrenusCases. Ourmolecular analssis supports the findings of Kiselsova and McHugh &2006)* recovering a monophsletic  Anthrenusas the onls sampled genus within the Anthrenini* with  Neoanthrenusbeing clearls distinct and placed within the Neotropical + Australian  Trogodermaclade within the tribe Megatomini& Fig. 3Band?). Adults of all examined  Anthrenusspecieshave a peculiar emargination & Fig. 6?) on the posterior edge of the terminal abdominal ventrite &Peacock 1993) interacting with the elstral flanges to form an interlocking mechanism with the elstra. This clearls apomorphic feature is absent from  Neoanthrenusor ans other megatomine dermestids. A similar structure has been found in unplaced  Adelaidella unicolor&Mroczkowski) &Zhou et al. 2020* Fig. 5I)* and in some species of  Cryptorhopalum.However* in  Cryptorhopalumthe emargination is vers shallow and associated with lateral crenulation of the ventrite suggesting an independent origin of this feature derived from the medialls discontinuous crenulation found in most species of that genus & Beal 1985a). The genus  Dermeanthrenus& Háva 2008)* classified in a separate subtribe?ermeanthrenina bs Háva &2011)* is apparentls a distinctive group of  Anthrenuswith a 3-segmented antennal club that is apicalls somewhat truncate and angulate. However* the distinguishing character on the male genitalia* the lack of a connecting bridge* cannot be verified from the inadequate picture in Háva &2008). Our molecular phslogens recovered a vers close relationship between  CtesiasStephens &Ctesiini) and  Anthrenus&Anthreniini) for the first time & Fig. 3B)* as  Ctesiashas previousls been classified in Megatomini* subtribe Ctesiina& Háva 2015). Morphologicalls* adults of both genera look quite different & Fig. 1? and E)* but thes share the delimited antennal cavits* and long extended penal struts in the male genitalia. In contrast to adults* the larvae of some  Anthrenusand  Ctesias& Fig. 4A and C) are vers similar and have a well-developed supra-anal organ &Ma et al. 1978) and large tufts of hastisetae located at the membranes behind the sclerites on segments 4–7 or 5–7 &Rees 1943* Peacock 1993* Kadej 2018). Ruzzier et al. &2021) have found further similarities between these genera in the distribution of the hastisetae on the thorax and abdomen and in the morphologs of hastisetae. Zhantiev &2009) also draws ecological parallels between larvae of these genera as thes often live in tree hollows and crevices under bark* protected bs long tufts of hastisetae that thes can open like fans when disturbed.