260 



THE CANADIA.N ENTOMOLOGIST. 



gg. Head with a low transverse carina anteriorly, 

 clypeus always toothed. 



Clypeus simply bidentate at tip Ligyrus. 



Clypeus with an elevated tridentate process 



before the tip „ Aphonus. 



ggg. Head with a long horn ( r^ ) or a tubercle (?) on 



the vertex Xyloryct'es. 



The placing of a specimen in position by means of the claws is easy, 

 as the inequality in the inner and outer ones in the species comprised in 

 group A is very marked. As most of the genera have but one species 

 belonging within our faunal limits, they present no difficulty in the way 

 of correct specific determination. 



Anomala, Koeppe. 

 Two species of very variable colour and rather small size (.30 to .40 

 in.) are found here. 



Thorax with distinct basal marginal line ; colour variable, elytra 

 usually with two transverse bands of dark spots. . .undulata, Mels. 

 Thorax without basal marginal line, colour black to 



yellow lucicola, Fabr. 



Strigoderma, Burm. 

 One species {S. arboricola, F.) about .40 inch, in length, resembling 

 Anomala in form, but the elytra are flat and distinctly sulcate. The 

 thorax is dark brown with a metallic lustre, the outer and basal margins 



pale, the elytra are clay- 

 coloured. It may be found on 

 flowers during the day. 



Pei.idnota, MacLeay. 



The " grape beetle," Pelid- 

 nota punctata, Linn., is our 

 only representative. It is 

 about an inch in length, 

 brownish yellow, a black spot 

 near the middle of the thor- 

 acic side margin, and three 

 on each elytra (Fig. 28, a 

 larva ; b pupa ; c beetle ; d 

 anal mark on larva; ^antenna, 

 Fig. 28. and / leg of larva). 



ir^^s^ 



