CRIOCERID^, — DONACIA. 269 



- transversely rugose and punctate : elytra rather deeply crenaXe-striate, with 

 the interstices thickly rwg-oie-punctate : legs moderately elongate •.femora thick 

 and violaceous, with the base alone testaceous: posterior slightly curved, and 

 of the male with two equal acute teeth at the apex placed transversely, and 

 of the female with a single rather obsolete one: tibiae and tarsi dusky tes- 

 taceous: antenns with the basal joints ferruginous. 



Not very abundant within the metropolitan district, but frequent 

 near Windsor, and it has been once taken plentifully in a marsh near 

 Ealing. " Meldon-park." — G. Wailes, Esq. " Duddingston-loch." 

 — Rev. W. Little. "Wimbledon-common and Windsor-forest." 

 —Mr. G. Waterhouse. " Weston." — Rev. A. H. Matthews. 



Sp. 3. dentata. Snbdepressa, oenea, capite punctata, thorace lato, pimctato-rugoso, 

 lined abbreviatd posticd, elytris depressis ad suturam leviter impressis, apice 

 subangustat/s, oblique truncatis, subappendicidatis. (Long. corp. 31 — 4§ lin.) 



Do. dentata. Kun%e.—Steph. Catal. 207. No. 2098. 



Somewhat depressed; brassy, with a shining pubescence beneath : head punc- 

 tate: thorax \tX02A, punctate-x\x^o%Q, with an abbreviated impressed line be- 

 hind : elytra depressed, slightly impressed towards the suture : the apex 

 somewhat narrowed, obliquely truncate, with a slight appendage at the outer 

 angle, punctate-^^rm/e^^, the interstices rugose, especially towards the apex : 

 legs rufo-testaceous, with the posterior femora incrassated and bidentate, the 

 dentations shortest in the females : posterior tibice in the males, with four or 

 five small dentations towards the apex within. 



Found in marshy places near Hanwell in Middlesex, and in other 

 parts of the metropolitan district, as in the neighbourhood of Hert- 

 ford, &c. " Common in the fens of Cambs." — Rev. L. Jenyns. 

 " Salisbury." — Mr. Ingpen. " Epping." — Mr. Doubleday. 

 " On the water-lily, Windsor." Mr. G. Waterliouse. 



Sp. 4. angustata. Suhdepressa cenea, capite punctata, thorace quadrato, punctato- 

 rugoso, lined media abbreviatd, elytris canvexiusculis ad suturam quadri-im- 

 pressis, postice angustatis, apice sinuato-truncatis, suhappendiculatis. (Long, 

 corp. 4 — 4^ lin.) 



Do. angustata. Kunz'.—Steph. Catal. a07. No. 2099. 



Slightly depressed, narrow, brassy or cupreous : head punctate : thorax qua- 

 drate, punctate-rugose, with an abbreviated dorsal line in the Tuiddle of the 

 disc, and a rounded tubercle on each side towards the anterior angle : elytra 

 slightly convex, with four depressions towards the suture, narrowed posteriorly, 

 with the apex sinuate truncate, and a little appendiculated ; the disc punctate- 

 striate, the strife moderately impressed: legs slender, rufo-testaceous: the 

 femora and tibiae above fuscescent, the former slightly bidentate. 



