Britisli lleutlj)tcra-llticn)jtera. 651 



22. semistriata, Fieb. Fig. Spec. Coris. pi. iii. fig. 2 



(palffi). 



Darker than limitata, and at once distinguishable by 

 the pale markings of the elytra being divided into four 

 distinct series by reason of three dark, longitudinal lines; 

 extreme apical margin of coriuni pale. 



Length 2| lines. 



Not rare ; in ditches, &c. 



23. venusta, Dougl. & Scott. 



Very like the preceding, of which it may prove to be 

 only a variety. Brown, with paler markings, very ras- 

 trate. Thorax with 6 — 7 impressed black lines; corium 

 with four longitudinal lines, the first placed at the inner 

 apical angle ; extreme apex pale, legs pale, intermediate 

 claws about equal in length to the tibial, much longer than 

 the tarsi. 



Length 2| lines. 



liothsay and Carlisle. 



24. fossarnm, Leach. Fig. Fieb. Spec. Coris. pi. ii. 



fig. 15. 

 Var. prominula, Thoms. 

 Rather longer and with clearer markings than mcesta, 

 from which the shape of the intermediate legs at once 

 separates it ; the thorax has six distinct, pale lines across 

 it. The head, between the eyes, is produced and slightly 

 roimded, the posterior margin deeply emarginate. 

 Length 2^ lines. 

 Common in ponds, &c. 



25. Scotti, Fieb. 



Very like the above, but rather smaller ; the head more 

 depressed above, and somewhat angular in front, and very 

 much excavated behind ; the posterior angle of the eye 

 almost touching the anterior angle of the thorax, which is 

 traversed by only five pale lines. 



Length 2\ lines. 



Argyleshire. 



Thorax with a distinct, raised, dorsal line. 



26. carinata, Sahib. 



= Sharpii, Dougl. & Scott. 

 About the shape of Fallenii, &c. Thorax rather deeply 

 rastrate, with 10 — 12 impressed, dark, transverse lines; 

 dorsal line raised, and very pronounced to beyond the 



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