114 



INSECTS INJURIOUS TO CACAO PLANTS 



This remarkable species may be readily recognised by the striking basal prominences 

 on the elytra and the cup-like cavities on the front tibiae of the male. 



This insect is stated by M. Mayne to occur but rarely, the adult attacking the leaves 

 of full-grown trees. 



Systates maynei, sp. nov. (fig. 2). 



Colour black, piceous or red-brown, thinly covered with small sub-circular convex 

 fluted grey scales, often having a pale greenish or coppery reflexion. 



<J. Head separated from the rostrum by an angulated furrow ; the forehead almost 

 flat, shiny and faintly alutaceous, with a deep central furrow, which is about equal 

 to one-half the anterior furrow ; along the inner orbit of each eye a row of 5-7 

 erect flattened pale setae. Rostrum longer than its basal width, gradually narrowing 

 from the base to the middle and broadly dilated at the genae ; the upper surface 



Fig. 2. Systates maynei, Mshl., sp. n., <$. 



tricarinate, the median carina bifid at the apex, the outer ones strongly convergent 

 in front ; the lateral areas not perpendicular, but sloping gradually outwards, the 

 upper portion of the scrobe being therefore sharply delimited behind by an oblique 

 carina. Antennae as described for S. ramosus, except that joints 4 and 7 of the funicle 

 are each slightly longer than 5 or 6. Prothorax a little broader than long (6 : 5), the 

 sides rather strongly and regularly rounded, broadest about the middle, the apical 

 margin truncate and only slightly narrower than the base ; the upper surface, 

 shagreened, usually with an abbreviated shiny central line, and set with sparse small 

 granules, each bearing an erect scale-like seta. Elytra ovate, broadest not far from 

 the base and gradually narrowing from there to the apex, the sides being quite straight 

 from the base to the point of greatest width (above the middle of the metasternum) ; 



