73 



CHRYSOMBLI^yE. 



50. Phytodecta chrysomeloides, Jacoby 



Phytodecta chrysomeloides, Jac, Ann. Mus. Civ. Genova, xxvii, 1889, 

 p. 189. 



Body subquadrate-ovate, very convex. Colour yellow-brown 

 to darker brown, with four black spots in a transverse line on the 

 pronotum; scutellum black; each elytron with seven black spots 

 distributed as follows : on the humerus, a larger one near the 

 sc\itellum, two placed transversely at the middle, of which the 

 inner spot is of narrowly transverse shape, and three others 

 placed transversely below the middle, the innermost spot being 

 situated on the sutural margin ; breast piceous, sometimes black; 

 posterior margin of the pronotum and base of elytra edged with 

 black. 



Head-, upper surface uneven, finely punctate, anterior margin 

 of epistome straight. Antennae not extending beyond the base 



Fig. 26. — Phytodecta chrysomeloides, Jacoby. 



of the prothorax, the six terminal segments transversely widened, 

 each more so than the preceding one ; first segment long, club- 

 shaped, second shorter but thicker than third, third, fourth and 

 fifth almost equal to each other. Prothorax twice (not three 

 times, as Jacoby writes) as broad as long, sides straight and 

 oblique, narrowed in front, front margin emarginate ; posterior 

 margin forming a nearly straight, but oblique, line on either side 

 from the middle to the hind angle ; anterior angles rounded, almost 

 right angles, posterior acute; surface convex with a few irregularly 

 distributed punctures, stronger at the sides than on the disc. 

 Scutellum triangular, much broader than long, smooth, impunctate. 

 Elytra subquadrate, very convex, as broad at the base as the 

 prothorax, widened behind ; upper surface very strongly, closely 

 and confusedly punctate, a narrow border along the lateral margin 

 impunctate; on each elytron two narrow impunctate longitudinal 



