Insects. 4853 



6. I. uliginosus, Linn. I. fuliginosus, Fab., GylL, Sieph. y Aube. 

 D. lacustris, Panz. A most abundant species. 



Genus Agabus. 



(A. serricornis, Payk., GylL Long. 9 — 11 ; larg. 5 — 6. Oblongo- 

 ovate ; nigro-piceous, very slightly aeneous ; sides of thorax continued 

 in same arc as sides of elytra; sides of elytra and thorax broadly, but 

 indistinctly, ferruginous. In $ four terminal joints of antenna dilated. 

 France, Sweden, Lapland, Finland.) 



1. A. agilis, Fab., Erich., Steph. Man. A. oblongus, ///., GylL, 

 Steph. Illust., Aube. D. haemorrhoidalis, Fab., var. A. ruficollis, 

 Schaller. Yaxley; Cambridge; near London; Raehills, Dum- 

 friesshire. 



2. A. arcticus, Payk., Gyll., Steph. Scotland, Dollar, Isle of 

 Mull; Orkney, August, 1855. 



3. A. guttatus, Payk., GylL, Steph., Aube. Long. 8 — 9; larg. 4 — 4j. 

 Common. 



(A. dilatatus, BrulL, Aube'. Long. 8J; larg. 4f. Allied to 

 A. guttatus, somewhat larger; elytra not so dark, with a more decided 

 brown ; more finely reticulated : probably it will prove to be a local 

 variety. Moraea, France.) 



(A. biguttatus, Oliv., Fairmaire. Long. 9 ; larg. 5. Differs from 

 A. dilatatus by its colour, entirely black and shining, more convex in 

 form ; differs from A. guttatus in general form, less parallel and more 

 convex, as well as by its greater brilliancy of colour ; the reticulations 

 are much less distinct than on A. guttatus. France, Spain, Italy, 

 Sicily.) 



4. A. fontinalis, Steph., III. A. guttatus, var., Steph. Man. A. \ it- 

 tiger, Steph., not GylL, Aube. By no means an abundant species. 

 Devonshire, Sussex, Dorchester; Mr. Newman has taken it this 

 autumn on Car Caradoc, in Shropshire. This insect may be 

 determined at once by the third tooth on the anterior feet of the 

 male. 



(A. Haeffneri, Mannerh. Long. 1\\ larg. 3|. Evidently smaller 

 than A. guttatus, comparatively rather shorter, more finely reticulated; 

 the three lines on the elytra are less distinct : the posterior angles of 

 the thorax more obtuse and almost rounded. Sweden.) 



(A. Wasastjernae, Sahib. Long. l\ ; larg. 3|. However closely 

 resembling (by descriptions) the former species, it appears to be 

 distinct: thorax less rounded on sides, posterior angles of thorax 

 XIII. 2 T 



