252 B. H. GRAVE 



brown color. The head and pro thorax are bent sharply forward 

 and the antennae pass backward and dorsally beneath the pro- 

 and meso-thoracic legs. The mouth parts approach those of 

 the adult beetle in structure but the mandibles are larger and 

 have a smooth outline, without teeth. The adult toothed man- 

 dibles can be seen within, however, as the time for the emergence 

 of the beetle approaches. 



The characteristic prothoracic humps are evident. The 

 broad tarsal pads which are so striking a feature of the imago 

 are clearly outlined in the tarsi of the pupa. The tip of the 

 abdomen has a complicated system of plates, most of which are 

 shown in figure 7. The larval skin normally remains attached to 

 the tip of the abdomen but it can be removed without difficulty. 

 Three bristles are situated in a triangle over each eye and four 

 pairs of large symmetrically placed bristles extend backwards 

 from the tip of the abdomen, as shown in the figure. There are 

 numerous other bristles on the body but they are smaller and 

 seem to be of another character. 



When disturbed in its burrow the pupa moves its abdomen 

 actively and wriggles about more or less. 



The characteristic features seem to be the broad tarsal pads, 

 the thoracic prominences, and the bristles over the eyes and on 

 the tip of the abdomen. 



THE IMAGO 



For the original description of Zeugophora scutellaris reference 

 should be made to Entomologische Zeitung zu Stettin, vol. 1, 

 1840, page 99, by Suffrain. The species was redescribed by 

 Lacordaire in his "Monographe des Colleopteres Subpent meres 

 Fhytophages," vol. 1, 1845, p. 236. Another short description 

 of the beetle is given-in "Proceedings of the Academy of Natural 

 Sciences of Philadelphia," 1873, page 23, by G. R. Crotch 

 (and M. A. Cantab). These descriptions do not agree in all 

 particulars. Suffrain gives the color of the lighter parts as 

 bright yellow, while Crotch describes it as testaceous yellow. 

 Ihere is a considerable reddish tint in the specimens wdth which 

 I worked. 



