INSECTA MADERENSIA. 77 



(Subgenus PERYPHTJS, Meg.) 



60. Bembidium Atlanticum, WoU. 



B. subcyaneo-, vel subsenescenti-v-iride, prothorace parvo cordato basi valde attenuate angulis posticis 



rectis, elytris punctato-striatis fascia communi subapicali rufo-testacea (interdum obsoleta) 



decoratis, singulo punctis duobus distinctis impresso et plaga subbumerali suffasa rufo-testacea 



(interdum obsoleta) ornatis, antennarum basi pedibusque rufo-testaceis. 

 Var. a. subcyaneo-viride, elytris fere immaculatis, fascia plagisque obsoletis. (In Madera Boreuli 



status typicus.) 

 Var. ^. subcyaneo-, vel subsenescenti-viride, elytromm fascia plagisque valde indistinctis. (In 



Madera Boreali et in Portu Sancto ; rarior.) 

 Var. y. cyaneo-viride, elytrorum fascia plagisque valde distinctis. (In Fortu Sancto status typicus; 



sed in Madera Boreali rarissimus.) 

 Var. i. cyaneo-viride, elytris leete coloratis, fere testaceis, fascia distincta et plagis valde sufFusis 



confluentibus. (In Portu Sancto, rarior.) 

 Var. e. paulo majus et latius, cyaneo- senescent!- viride, elj-tris fere immaculatis, fascia omnino et 



plagis fere obsoletis; pedibus, prsesertim tibiis, iuEequaliter infuscatis. (In Madera Australi, 



rarissimus.) 

 Long. corp. lin. 2i-2f. 



Habitat per litora rivulorum Maderae, prsesertim Borealis; necnon in ins. Portu Sancto, tempore 

 biberno et veraali, frequens : var. a. in Ribeiro de Sao Jorge, baud procul a Sancta Anna, 

 abundat, qua d. 17 Mai. a.d. 1850 copiosissime collegi; varietatis ^. exemplar unicum bactenus 

 vidi, a meipso ad Curral das Romeiras in Madera AustraU autumno exeunte a.d. 1847 

 detectum. 



B. sbining, more or less of a bluish-green bue, and occasionally with a brassy tinge. Prothorax 

 small, cordate, convex, and highly pohshed, much attenuated, and transversely punctm-ed, be- 

 hind, the posterior angles being right angles ; with a distinct dorsal channel ; and a deep fovea 

 on either side at the base. Elytra parallel ; uniformly punctate-striated ; with two distinctly 

 impressed points on the disk of each near the third stria from the suture ; with a large sublunu- 

 late fascia behind, common to both, and a diffused patch on each about the region of the 

 shoulders, more or less obscurely rufo-testaceous, — either the fascia or the patches, and occa- 

 sionally both, having a tendency to become obsolete. Antenna at base, palpi and legs rufo- 

 testaceous : the fii-st more or less infuscate towards their apex. 



Var. a. bluish-green; and with the elytra almost immaculate,— there being scarcely the slightest 

 indication of either the fascia or patches. (The typical state in the north of Madeira.) 



Var. fi. bluish-green, or green with an jeneous tinge; the elj-tra with both the fascia and patches 

 perceptible, although indistinct. (Abnormal both in the north of Madeira and in Porto Santo.) 



Var. y. bluish-green, or greenish-blue ; the elytra with the fascia and patches exceedingly well 

 defined. (The typical state in Porto Santo, but extremely rare in the north of Madeira.) 



Var. 8. bluish-green, or greenish-blue ; the elytra abuost testaceous, the fascia being exceedingly 

 bright, and the patches large, and so much diffused as to be almost confluent, and to cover the 



