CYDNID^. 53 



half way down tlie sides ; hinder angles raised, sometimes posteriorly 

 with a small white spot. The punctures are not so contiguous 

 as on the scutellum, but in the central furrow they form slight 

 wrinkles. Scutellum ; the extreme deflected apex punctureless. 

 Elytra : Corium ; anterior margin reflexed ; at the base a large, 

 white, irregular, dentate patch, each end of which extends to the 

 claims ;*at the posterior outer angle a similar smaller patch extends 

 half across the corium ; posterior margin sinuate ; Membrane whitish 

 or fuscous. Sternum: — Prosfernum coarsely, Meso- and Uletasternum 

 moderately but sparsely, punctured. Legs black ; tilice on the out- 

 side, except at the base and apex, white ; tarsi black. 



^if/ome?^, beneath, very delicately and sparsely punctured; Con- 

 nexivum rather wide, alternately black and white. 



Length, 2^— 3i lines. 



Not uncommon round London in sandy places, among grass and 

 herbage, in the spring. 



Species 2. — Sehirus dubius. 



CiMEX DUBixJS, Scop. Eiit. Cam. 121, 355 (17G3); Wolff', Ic. Cim. Gl 

 t. 7, fig. 6] (ISOl). 



— ALBOMAKGINATUS, Schrlc. Enum. Ins. Aust. 531, 275 (1781), 



— ALBOMARGixELLTJS, Fab. E. S. iv, 123, 167 (1794) ; S. R. 178, 



120 (1803). 

 Cydnus ALBOMAKGINATUS, Full."^ Hem. Succ. 19, 4 (1829); Ramb. 



Eauu. And. ii, 111, 2 (1842). 

 . — DUBIUS, Halm, Wanz. i, 191, t. 31, fig. 98 (1831) ; Curt. B. E. 

 ii, 74 (1826); Flor, Rliyu. Liv. i, 160, 5 (1860). 



— ALBOMABGINELLUS, Biirtti. Handb. ii, 374, 2 (1835); Kolen. 



Mel. Ent. iv, 64, 192 (1845). 

 Seuirus — Am. et Serv. Hem. 97, 2 (1843); Sahib. 



Geoc. Een. 21, 2 (1848). 

 — DUBIUS, Fieb. Europ. Hem. 368, 5 (1861). 



Blue-black, with a violet tinge, shining, finely punctured, the lateral 

 margins of the pronotum and the anterior margin of the elytra 

 narrowly yellowish. 



Head broad, short, trapeziform before the eyes ; Crown rather con- 

 vex, with few punctures ; Face ; side lobes widely recurved ; the an- 

 terior margin almost without a notch. Antennce black or piceous, 



