DYTICIDJE.— COLYMBETES. 6T 



— Dr. Leach. I rather suspect that var. /3., which is in the British 

 Museum, may be a distinct species ; its form is apparently dissimilar 

 to that of the true Co. fontinalis : the specimen was taken in 

 Devonshire. 



f Sp. 4. Grapii. Obion go-ovatus, niger, depressus, subiilissime punctulatus, 

 vertice lunula media rufo-ferruginea, thoracis augulis posticis prcduciis 

 acutis. GylJ. (Long. corp. 5j lin.) 



Dy. Grapii. Gyllenhal — Co. Grapii. Steph. Catal p. 51. No. 518. 



Oblong-ovate, the entire surface finely and thickly punctulate: head black, 

 the mouth and margin of the forehead, and a lunule on the crown, rufo- 

 ferruginous : antenna? slender, pale mfescent : thorax very short, much 

 simrated posteriorly, with the hinder angles thrown back and acute; above 

 rather convex, black, the lateral margins rusty-red : elytra large, ovate, very 

 little dilated in the middle, rather depressed, black, opaque, immaculate, the 

 humeral margin slightly piceous, the disc with three faint punctate stris> : body 

 pitchy-black beneath, finely strigose : anterior legs testaceous-red, the thighs 

 beneath and base pitchy-black; the posterior pitchy-black, with the joints 

 paler. 



Six indigenous examples of this insect have come beneath my 

 notice ; of which two were captured in Norfolk by Mr. Curtis, and 

 four in Whittlesea Mere by Messrs. Chant and Bentley. 



Sp. 5. fuliginosus. Oblongo-ovatus, posterius attenuatus, obscure metalliciis, 

 Jlavo-marginatus, subtus ferrugineo-brunneus. (Long. corp. 5 lin.) 



Dy. fuliginosus. Fabricius. — Dy. uliginosus. Mart. C. pi 32. pi. 2 — 5. — Co. 

 fuliginosus. Steph. Catal. p. 49. 'No. 485. 



Oblong-ovate, posteriorly attenuated ; dull-brassy above ; the surface under a 

 deep lens finely coriaceous : head black, anteriorly ferruginous, with two more 



f Sp. 6. cicur. Oblongo-ovatus, niger nitidus, Icevis, maculd capitis thoracisqve 

 margine rufo-ferrugineis, elytris Jlavis nigro irroratis, Uneis tribus Jlavis. 

 (Long. corp. 8 lin.) 



Dy. cicur. Fabricius. — Co. laevigatas. Steph. Catal. p. 49. No. 486. — Co. con- 

 sobrinus. Curtis, v. pi. 207. 



Oblong-ovate, above yellowish, shining, finely and thickly punctulated: head 

 dusky, with a rufo-ferruginous spot on the crown : thorax dusky-black, with 

 the anterior margin dull-testaceous; the lateral margins and an obsolete central 

 line obscure rufo-ferruginous : elytra oblong-ovate, moderately convex, shining, 

 pale flavescent, thickly irrorated with black, with a small patch at the shoulder, 

 another in the middle of the base, and a slender line down the suture, also 

 black ; the disc of each with three narrow longitudinal immaculate-yellow 

 lines, and three obsoletely-punctate stris, rather irregular towards the apex : 

 body beneath pitchy-ferruginous, or black : legs dusky or testaceous. 



F2 



