PHYTOPHAGA FROM SUMATRA 4^9 



tarsi black, thorax very minutely punctured, elytra black, with 

 a large llavous })atcii before, and anothc>r below the middle, 

 finely punctured. 



Length 3-8 V:> lines. 



Of iH'oadly ovate and convex shape, the head impunctate, 

 fulvous , frontal tubercles distinct , transverse , clypeus strongly 

 swollen, eyes very large, palpi incrassate, antennae not extending 

 to the middle of the elytra, black, the basal joint fulvous, the 

 apical one yellowish-white, third joint one half longer than the 

 second , following joints more elongate and slightly thickened , 

 thorax nearly three times broader than long, fulvous, the sides 

 nearly straight, the anterior angles obliquely tiiickened, anterior 

 margin straight, posterior one widened at the middle, surface 

 scarcely perceptibly punctured, scutellum broad, fulvous, elytra 

 scarcely more strongly punctured than the thorax, pale iiavous, 

 this colour divided into four large patches by a narrow trans- 

 verse black band at the middle , a similar 1)and extends across 

 the base, the suture and lateral margins are likewise narrowly 

 black, below dark fulvous, the tibiae and tarsi blackish, posterior 

 femora moderately incrassate, tiieir tibiae armed with a strong 

 spine , the first joint of the posterior tarsi as long as the fol- 

 lowing three joints together, claws appendiculate, mesosternum 

 elongate, widened at the base, anterior coxal cavities open. 



Hah. Si-Rambé. 



S. imilans can easily be mistaken for two other Sumatran 

 species which almost entirely resemble it in coloration but belong 

 to the genus Imolia, Jac. on account of the closed coxal cavities. 

 In the present insect the latter are open and the antennae are 

 slightly dilated but they are not typical nor is the structure of 

 the metatarsus of the hind legs which is much longer than in 

 S. acroleuca, Wied. the typical form, this however is a difference 

 of degree only, the shape and other structural characters agree 

 with the genus. .S. ornata, Baly lias closed cavities and has been 

 placed by me in Imolia, it differs besides in the distinctly punc- 

 tured thorax and elytra, the narrow Havous bands of the latter 

 and the entirely fulvous legs. 



