DYTIClDiE. — COLYMBETES. ®$ 



testaceous-yellow, with the middle unequally black : elytra oblong-ovate, at- 

 tenuated beyond the middle, above moderately convex, dusky-black, the margin 

 pale griseous-yellow/finely and rather deeply transversely striate throughout ; 

 each elytron with two longitudinal striae, consisting of rather obsolete impressed 

 dots ; towards the suture and the margin are also a few scattered impressions : 

 body beneath dusky-black, rather glossy, thickly strigose : legs black, ruggedly 

 punctate. 

 The disc of the thorax is sometimes nearly all black, at others a narrow waved 

 transverse band alone occurs; and the margins of the abdominal segments are 

 sometimes ferruginous. 



Very common throughout the metropolitan district. " Common 

 everywhere in Cambridgeshire." — Rev. L. Jenyns. " Wandsworth 

 and Wimbledon commons, and Copenhagen-fields." — Mr. Ingpen. 

 « Kimpton."— Rev, G. T. Rudd. « GlanvihVs Wootton."— /. C. 

 Dale, Esq. 



Sp. 8. fuscus. Brevior ovatus, supra fuscus, thorace Jlavescente, medio fusco-piceo, 



elytris subtilissime transversim strigosis. (Long. corp. 8| — 9 lin.) 

 Dy. fuscus. Linne. — Co. fuscus. Steph. Catal. p. 49. No. 487. 



Closely allied to the last, but rather smaller, proportionably shorter and more 

 obtuse posteriorly : head scarcely striated, but obsoletely punctulated : thorax 

 rather more convex than in Dy. striatus, testaceous-yellow, the disc obscurely 

 and irregularly pitchy-brown ; the anterior and posterior margins generally 

 pale : elytra ovate, apex obtusely rounded, rather convex, pale-fuscous ; the 

 lateral margins, and sometimes the base pale-griseous, very finely striated trans- 

 versely throughout, with two longitudinal punctate striae : body beneath deep 

 rather glossy black, sometimes pitchy ; delicately strigose : anterior legs tes- 

 taceous-yellow, the base of the thighs beneath pitchy ; the posterior pitchy, 

 with the joints paler. 



Taken abundantly in Whittlesea Mere by Messrs. Chant and 

 Bentley ; I have also specimens captured near London. 



Sp. 9. pulverosus. Plate XII. f. 2. — Ovatus, niger, supra Jlavicans, thorace 

 macula media nigra, elytris crebre nigro irroratis, striis disci punctatis. 

 (Long. corp. 6 — 6^ lin.) 



Dy. pulverosus. Knock. — Co. pulverosus. Steph. Catal. p. 49. No. 489. 



Ovate, black, above yellowish : head posteriorly black, with two, more or less, 

 confluent ferruginous spots : thorax above a little convex, finely rugose be- 

 neath a strong glass, luteous, with a transverse dusky-black spot in the middle : 

 elytra ovate, moderately convex anteriorly, rather depressed behind, yellowish ; 

 the disc thickly irrorated with black ; the lateral margin and a narrow line on 

 the suture immaculate-luteous ; the entire surface finely rugulose, and on each 

 elytron three rather conspicuous punctate longitudinal lines, becoming ob- 



