1 Key to the genera of galerucine beetles of New Guinea, with a review of Sastra and related new taxa (Chrysomelidae) Sharon L. Shuttle Department of Entomology, British Museum (Natural History), Cromwell Road, London SW7 5BD Contents Synopsis 205 Introduction 205 Depositories 206 Acknowledgements 207 Key to genera of Galerucinae from New Guinea 207 Dreeusgen. n 215 Marmina gen. n 217 Key to species of Marmina 219 Polysastra gen. n 220 Key to species groups based on external characters 222 Key to described species and subspecies of Polysastra 229 SastraBaly 245 Species remaining in Sastra 247 Species removed from Sastra 256 Check list of genera, species and subspecies treated here 257 References 257 Plant index 264 Index 265 Synopsis A key is given to the 47 genera of the chrysomelid subfamily Galerucinae represented in New Guinea. The current status of the 34 species previously listed in the genus Sastra Baly is reviewed; 22 new combinations are proposed and four combinations are reinstated. Three genera, 14 species and two subspecies are described as new. One specific synonym is newly established, and one species is recalled from synonymy. Two of the genera have been erected primarily for the inclusion of the New Guinean species with toothed pronota which were previously assigned to the genus Sastra. Keys, figures of the diagnostic features and distribution maps are provided. Introduction The Chrysomelidae is one of the largest coleopterous families with upwards of 50,000 described species distributed throughout the world. The adults and larvae are entirely phytophagous, therefore the family is one of the most economically important amongst the Coleoptera. The majority of species tend to be host-specific or are restricted to one particular plant family although, compared with the number of species in the family, relatively few of the host plants have been recognised. The genera dealt with in this paper belong to the Galerucinae, which is the largest of the 17 subfamilies recognised in the Chrysomelidae (for key, see Gressitt & Kimoto 1963) and has over 5,000 described species distributed throughout the world; these are most abundant in tropical regions. Adult Galerucinae feed on the parenchyma of the leaves and many species are known to visit flowers (Knuth, 1908; Maulik, MS.). The larvae may be either leaf-or root-feeders. In the majority of species pupation takes place in the soil but in others the pupae are attached to leaves. As a result of making routine identifications of Galerucinae from New Guinea it became Bull. Br. Mus. not. Hist. (Ent.) 46 (3): 205-266 Issued 28 July 1983
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