218 ARCASTES SUTURALTS. 



compressed, second joint short, this and the preceeding 

 one shining, the others covered with thick pubescence, 

 the two apical ones testaceous; thorax three times as broad 

 as long, the posterior margin rounded; anterior angles 

 slightly thickened, obtuse; surface entirely impunctate, 

 fulvous ; scutellum of the same colour ; elytra slightly wide- 

 ned at the middle , extremely closely and finely punctured , 

 black or piceous, the suture anteriorly narrowly fulvous, 

 this colour not extending below the middle; femora often 

 fulvous at the base, tibiae and tarsi black. 



Sastroides, nov. gen. 



Body broadly ovate, convex, pubescent; eyes large, 

 convex, entire; palpi robust, the fourth joint swollen at 

 the base, its apex broadly rounded; antennae slender, 

 filiform, the second joint very short, third joint extremely 

 long and the longest; thorax transverse, 3 times as broad 

 as long, the sides dilated at the middle, surface with a 

 central and lateral deep depression; scutellum subpen- 

 tagonal, its apex broadly rounded; elytra dilated behind, 

 closely punctured and pubescent, their epipleurae rather 

 broad and continued to the apex; legs elongate; tibiae 

 obsoletely channelled, their apices unarmed; posterior first 

 tarsal joint as long as the two following ones united; 

 claws bifid; prosternum invisible between the thighs; an- 

 terior coxal cavities open. 



1 am obliged to propose this genus for the reception of 

 a species which is apparently closely allied to the genus 

 Sastra Baly; in the latter however the palpi are slender, 

 the thorax much less transverse and the general shape of 

 the insect is more elongate, while here it is convex and 

 dilated giving the species the appearance of the South 

 American genus Monocesta or Coelomera. 



èasiroides himacutata, n. Sp* 

 Entirely pale yellowish brown; head finely and closely, 



J^otes from the Leyden IVCuseum, Vol. VI. 



