139 



Genus DYMASIUS. 



Dymasius, Thorns. Syst. Ceramb. p. 234 (1864). 

 Elydnus, Pascoe, Trans. Ent. Soc. (3) iii, p. 516 (1869). 



Type, D. macikntus, Pasc. 



Range. Oriental Region . 



iSomewhat elongate in form. The antennas of the males vary in 

 length ; they are more than twice as long as the body in the type 

 species, and only one-fourth or so longer than the body in other 

 species ; third and fourth joints subequal, each distinctly longer 

 than the fourth ; third and fourth more or less nodose at the apex : 

 antennae of the females slightly longer or shorter than the body ; 

 fifth joint shorter than the third and longer than the fourth ; sixth 

 to tenth more angulate anteriorly at the apex than in the male. 

 Prothorax longer than broad, constricted near the apex and to a 

 less extent at the base, slightly rounded in the middle on each 

 side ; the disc usually rugose or corrugate. Elytra rather long, 

 truncate at the apex and usually armed each with one or two 

 spines. Legs moderately long; the femora only slightly thickened 

 at the middle, exceptionally they are feebly carinate along each side. 

 First joint of hind tarsus as long, or nearly so, as the next two 

 joints united. Acetabula of front coxae closed; the intercoxal 

 process usually subvertical, and somewhat tuberculate posteriorly. 



140. Dymasius macilentus, 

 Pascoe (Cerambvx),7VrtMs. 

 Ent. Soc. (2) "v. p. 20 

 (1859). 



Dvmasius strigosus, Thorns. 

 "Syst.Cemmb. p. 234 (1864). 



Dark brown with a rather 

 dense covering of silky-grey 

 pubescence, which is so arranged 

 on the elytra as to give the 

 appearance of a number of 

 longitudinal bands or spots 

 varying in brilliancy according 

 to the direction of the light 

 falling on them ; three or four 

 longitudinal streaks on each 

 elytron moreover are almost 

 bare of pubescence, and under 

 the lens are seen to be very 

 closely punctate with fine 

 unequal-sized punctures. Upper 

 lobes of the eyes rather closely 

 approximate above ; the vertex 

 of the head just behind and 

 partly between them marked 

 with a feeble groove. Pro- 

 thorax rather strongly wrinkled across the whole of the upper 



Fig. 55. Dymasius macilentus, 

 Pasc., rf. X |. 



