260 The late Mi-. F. Bates's Revision 



I am indebted to Mr. G. J. Arrow for the following 

 information : — 



Pelidnota veneznelensis, G. and H. (rersicolor, Lat.), is tlie same as 

 Rntela tricolor, Gner., a true Rntela, and Latreille's name must 

 supersede that under which it is catalogued. 



P. tricolor, Nonf'r., is a var. of P. sumptuosa. Vigors. 



P. bimacidata. Cast., is Hoplognathtis maculatus, Gory. 



P. versicolor, Bilb., is of doubtful position ; but, in all probability, 

 will not come under Pelidnota. 



Pelidnota quadrvpundata, n. sp. 



9 . Testaceous-yellow, moderately shining ; head and thorax 

 slightly darker : clypeus rather strongly narrowed to the front, 

 whicli is lightly notched in the middle, all the margins black and 

 reflexed : head and thorax moderately punctured ; the latter widest 

 behind the middle, its base immarginate, the median lobe narrow, 

 truncate in front of the scutellum, rather strongly eniarginate at each 

 side the lobe : a dusky mark at each side near the margin, at about 

 the middle : scutellum wider than long, the sides bordered with 

 dark green : elytra extremely delicately shagreened, minutely and 

 sparsely punctulate ; widest — and a little angulate — before the 

 middle; from this point to the apex — and also by the suture — the 

 margin is of a dark purplish-brown ; a dark spot at the shoulder, and 

 a dark oblique spot near the apex ; pygidium dark bronzy-green, 

 rather finely and closely aciculate-rugulose, thinly setose at sides 

 and apex, which is rounded : under-side and legs bronzed-green : 

 front haunches, and the antenna?, dark castaneous ; sides of breasts and 

 of abdomen rather thinly pilose : metasternum and sides of abdomen 

 rather coarsely rugose-punctate ; last abdominal segment somewhat 

 strongly transversely rugose : mandibles strongly notched out- 

 wardly ; mesosternal process rather long and robust. 



Long. 22 mm. Lat. 6 mm. 



Hcd). Cayenne. 



A single $ of this very distinct species is in the Royal 

 Museum at Brussels. 



Remarkable in the present genus by the form and 

 immarginate condition of the base of the thorax, the 

 truncated median basal lobe, etc., showing affinities in 

 the direction of the genus Rutcla. The transverse, and 

 smaller, scutellum, however, distinctly points it out as a 

 Pelidnota. 



