Credit: © The Royal Society
                             
                         
                     
                         
                         
                             
                                 Image number: RS.9062
                             
                         
                         
                     
                 
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            Chionaspis biclavis, Chionaspis aspidistrae and Chionaspis salicis [Willow scale]
                                Date
                            
                            
                                ca. 1900
                            
                            
                        
                            
                            
                            
                                Creator
                            
                            
                                Robert Newstead (1859 - 1947, British) , Naturalist
                            
                            
                        
                            
                            
                            
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                                Dimensions
                            
                            
                                height (painting): 222mm
width (painting): 139mm
                            
                        
                            
                            
                            width (painting): 139mm
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                                Description
                            
                            
                                Plate 21, "Monograph of the Coccidae of the British Isles", by Robert Newstead (Ray Society, 1900-1902). Figures 1-8 Chionaspis biclavis, views of the insect at natural size on a branch of tea plant, and details of adult females. Figures 9-10 Chionaspis aspidistrae, views of normal and parasitised female. Figures 11-13 Chionaspis salicis, view and details of  adult females. Natural size and at various magnifications. Signed "R.Newstead ad nat del." The facing page is a corrected [in pencil] proof version of captions, "Explanation of Plate XXI".
                            
                            
                        
                            
                            
                            
                                Object history
                            
                            
                                From a volume of original illustrations for "Monograph of the Coccidae of the British Isles", (Ray Society, 1900-1902). Newstead’s work illustrates the structure and habitat of scaled insects, often having economic importance as agricultural pests. Printed note of presentation pasted onto front marbled endpaper, "From Professor R. Newstead, 67, Handbridge, Chester. Plate 1 stamped "Adlard & Son, Bartholomew Close E.C., 21 Sep.1901. Proof" and annotated in pencil "Own copy Sept 23 1901".
                            
                            
                        
                            
                            
                            
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