i68 



The Scottish Naturalist. 



B. angs. of th. very obt. Pale r. ; fr. of e. gen. darker 



i 1. B. c " ...... Robinii 



Perileptus 



Pit. Ba. of an. , mouth, legs and disc of e. pale. Th. 



tr., rectang. at ba. E. dist. p.-s. i% 1. B. c - . areolatus 



Eleventh Family— BEMBIDIAD^E (5 genera.) 



1. E. with a shortened str. near sc. 2 



- without a shortened str. near sc. 3 



2. Ant. tib. with a strong spine near ap. of ex. mar. . Cillenum 



- - simple ...... Bembidium 



3. H. , th. and e. unif. and densely punc. . . . Tachypus 

 Not as above ...... 4 



4. Sut. str. of e. consp. bent round at ap. . . Tachys 

 Not as above ...... Lymnaeum 



N.B. Perileptus (in the Trechidcv) bears sufficient resemblance to this 



family to be capable of confusion with it. 



Lymn.eum 



Pit. b. Mouth, pal., an. and legs pale. Ba. of th. 

 faintly punc. E. flat, deeply str. Ints. elev. ; 2 



deep imprs. on 4th. 2 1. E. sc - . 



Cillenum 



H. and th. gr. Mouth, pal. , an. , legs and e. pale brown. 

 Th. not tr. , with right angs. at ba. E. deeply str. ; 

 str. faintly punc. \% 1. B. c - 



nigropiceum 



laterale 



Tachys 



1. Ba. angs. of th. obt. ..... 2 



- - - - sharp ...... 3 



2. H. and th. dark brown. An. brown, paler at ba. Legs 



test. E. test. , clouded with darker. Th. tr. In. 



2 str. of e. dist. ; the rest obs. Ap. of bent part 



of 1st str. consp. bent towards sut. i l /i 1. B. . scutellare 



Pit. (sometimes paler). Ba. of an. and legs paler. Th. 

 tr. E. with only the in. 2 str. well def. Bent, 

 part of 1st str. nearly parallel to sut. I 1. E. . bistriatum 



3: Pit. b. Ba. of an. r. Legs r. brown. A r. spot near 

 should, and ap. of each e. Th. tr. E. flat, with 



3 dist. punc. str. ; the outer str. fainter; 8th dist. 



\yi 1. E. N - . . . . . quadrisignahan 



R. -yel. An. and legs paler. Th. gently tr. E. short, 

 conv., twice as wide as th., with the in. 2 punc. str. 

 deep ; the out. ones grow obs., the 8th deep behind. 

 i# 1. E.» . . . . . Fochi 



(To be continued.) 



