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74. 

 CYDNUS DUBIUS. 



Order Hemiptera. Fam. Pentatomidge Leach. Corisiae Lat. 



Type of the Genus Cimex bicolor Linn. 



Cydnus Fab., Leach. Cimex Linn., Fab., Scop., Schrank, Wolff. 



Pentatoma Lat. 



AntenncE exserted, inserted under the margin of the head before 



the eyes, nearly filiform, or slightly clavate, longer than the head, 



5 -jointed, the 1st and sometimes the 2nd joints very short, the 



3 following long, nearly of equal length, and more robust (fig. 4) . 



Rostrum inflected, distinctly 4-jointed, the 2nd and 3rd joints 



somewhat the longest, terminal joint slightly hairy (2). 



Labrum very long, subulate, received into a canal in the basal 



joint of the rostrum (3). 



Mandibles and ^ ... . , , , 



j^ .jj > like setae passmg through the rostrum. 



Head obtuse, immersed quite up to the eyes in the thorax. Clypeus 

 with a notch in the centre of the margin. Thorax narrowed ante- 

 teriorly, with the angles rounded. Abdomen ovate, somewhat orbi- 

 cular, depressed, margined. Scutellum large, not covering the wings 

 or elytra. Elytra coriaceous, membranaceous at the apex, crossing 

 each other horizontally. Tibiae robust, spinulose, not notched. Tarsi 

 3-jointed, middle joint minute (6 afore leg). 



DuBius Scopoli Entomologia Carniolica, p. 121 . n. 355. Albo-margi- 

 natus Schrank Austr. n. 531. 



Dark blue, slightly inclining to green and purple, lateral margins 

 of thorax and external margin of elytra pale straw-colour : mar- 

 gin of abdomen alternately black and straw-colour. Head, 

 thorax and scutellum coarsely punctured ; elytra more thickly 

 and minutely punctured. 

 In the Cabinets of the British Museum and Mr. Stephens. 



Fabricius established this group as a genus in his Systema 

 Rhyngotorum, but Latreille has only made it a principal divi- 

 sion of his genus Pentatoma. Dr. Leach by some accident 

 has stated in his characters of the genus Cydnus^ that the 2nd 



