.MYRilECOPHILOl'S COLEOPTERA, 247 



distinguishing feature." "Legs short and fairly stout. Only four distinct tarsal 

 joints are visible. Wings are present." Lea also says, "The antennae at first 

 glance appear to be but one jointed, but a very small basal joint (invisible from 

 above) may be seen, and a second one applied like a thin disk to the base of the 

 third, the latter has its apex slightly concave, and tilled with sensitised pubescence." 



In the specimen of E. costata which 1 have before me, however, all three 

 .joints of the antennae are clearly visible from above and are shown thus in fig. 5. 



Lea concludes his description with tlie following — "A very slow-moving spe- 

 cies, of which Mr. Clark obtained numerous specimens by sieving'. It is one of 

 the most interesting of the many curious species recently taken by him from nests 

 c' the twig-mound ant." 



Hab. — Western Australia, Swan River. Taken in numbers by Mr. J. S. 

 t 'lark, from the msts of Iridomyrmex. 



I.i a <iih 3- 3.75 mm. 



in Plate xix. 1 have unfortunately been unable to show the legs of Polyplo- 

 cotes carinaticeps and Euclarkia costata, as I have feared damaging them by re- 

 moving them from their cards. 



EXPLANATION OF PLATE xix. 



Fig. 1. Ectrephes formicarum Pascoe. 



'2. Enasiba tristis Olliff. 



3. Polyplocotes carinaticeps Lea. 



4. Diphobia longicomis Lea. 

 ., 5. Euclarkia costata Lea. 



