Coleoptera of the Falkland Islands. 171 



example (.sex not stated) with the elytral interstices somewhat 

 convex, a form also to be found now and then amongst the 

 specimens occurring on the mainland. The male has joints l-.'5 

 of the anterior tarsi consi lerably widened, and the intermediate 

 tibiae curved, as well as strongly sinuate within. The basal 

 joints of the antennae and the tibiae and tarsi are more or less 

 testaceous. The third elytral interstice usually has two or 

 three small pores along the apical half, sometimes indistinct 

 or wanting. 



This insect, according to Mr. Cameron, is common on the 

 sea-shore at Port Stanley, 



6. Dormeyeria audouini, G le'rin. 



Hah. FALKLANDS [lies Malouines], Soledad Bay, Port 

 Stanley, and Hooker's Point ; STKAITS OF MAGELLAN. 

 This Trechid and the following species, placed by Ender- 



lein under his new genus Dormeyeria, are apparently not 

 represented in the Museum. 



7. Dormeyeria soledadina, Gruerin. 



Hah. FALKLANDS [lies Malouines], Soledad Bay, Port 

 Stanley, and Seal Cove. 



8. Trechus antarcticus, Guerin. 



Hah. FALKLANDS [lies Malouines] (C. Darwin, 7?. Val- 

 lentin. C. J. C. Pool), Port Stanley (Af. Cameron) ; TlERRA 

 DEL FUEGO, Navarin Isl. (C. Darwin); PATAGONIA. 



A long series seen, including one specimen from Navarin 

 Island. 



9. Merizodus mweyi, Bates. 



Hah. FALKLANDS (C Darwin, Gapt. Marey, J. Mac- 

 gillivray, R. Vallentin, C. J. C. Pool), Port Stanley (Col. 

 A. M. JReidj M. Cameron) ; Tierra del Fuego, Pictonlsl., 

 Beagle Channel (sec. Fairmaire), &c. 



More abundant in the Falklands than T. antarcticus, and 

 apparently occurring in company with it. The Museum 

 received a long series o£ it in 1851 from J. Macgillivray. 



Dytiscidse. 



10. Lancetes flavoscutatus, Enderlein. 



Hah. Falklands (R. Vallentin, M. Cameron), Speedwell 

 Isl.. Halfway Cove (type, ¥). 



12* 



