132 [June, 



third a little shorter than second, fourth as long as broad, fifth to ninth about 

 equal in length, tenth a little longer, but each a little broader than the pre- 

 ceding, the tenth one-third broader tlian long, eleventh about 2^ times as long 

 as tenth in J' , shorter in 5 , in which sex the antennae are also a little thinner, 

 •with the joints more narrowed at their bases. Labrum ferruginous, arched, 

 variable in contour of apex, truncate, emarginate, or bilobed, with the space 

 between the lobes filled with membraue, the two latter aspects being probably 

 ■due to immaturity. Mandibles a little prominent, strongly curved at apex, the 

 right with a small sharp tooth on the inner side near middle. Maxillary palpi 

 testaceous (similar to those of Metaxya). Labial palpi with first joint rather 

 «tout, double as long as second ; second as long as broad, narrower than first ; 

 third joint one-third longer than second, and about one-half as wide ; fourth 

 minute, rod-like, forming an obtuse angle with the long axis of third joint, not 

 quite half as long and one-fifth the width of that joint. Ligula about half the 

 length of first joint of palpus, bifurcated to middle. Thorax pitchy, narrower 

 than elytra, about one-seventh broader than long, with indistinct central furrow 

 bardly reaching apex, sides almost straight in their middle third, base broadly 

 Tounded, closely, finely, but a little asperately punctured, with distinct pale 

 l)ubescence. Scutellum moderately large, triangular, pubescent. Elytra pitchy, 

 a little broader than long, with puncturation and pubescence similar to that of 

 tthorax, slightly sinuate before post-external angles. Kind body pitchy, with 

 extreme apices of segments two to six lighter, the 

 apex of seventh broadly and the whole of eighth 

 ferruginous, parallel-sided, with seventh and eighth 

 segments gently narrowed, the latter broadly rounded 

 at apex ; seventh segment longer than sixth ; pubes- 

 cent, the segments six and seven more sparingly. 

 Legs reddish-testaceous; anterior tarsi with first three 

 joints short, together much shorter than fourth ; 

 intermediate with first and second joints short, sub- 

 J VjL;^ 3 equal, third and fourth longer, sub-equal, together 



longer than fifth joint ; posterior tarsi with first four 

 joints longer, together about one-third longer than 

 fifth. Aedeagus of S as shown in fig. ?>. [I have examined four 5 specimens 

 withoTat definitely discovering a spermatheca. In one of them I found a small 

 'trumpet-shaped organ, about three times as long as its greatest width, gently 

 curved and gradually narrowed from its wider end, which I submitted to 

 Dr. Sharp as possibly the spermatheca. He replied that the specimen did not 

 show enough to come to a conclusion.] 



Length 3-3'o mm. 



This species has somewhat the facies of Atheta gregaria Er. Two 

 specimens were found in Hood-refuse from Eubwith, Selby, Yorkshire, 

 kindly sent to me by Dr. W. J. Fordham m January, 1919. The first 

 was detected by Dr. Sharp amongst a quantity of unset Atheta 

 {Metaxya) melanocera Thoms. which I sent to him, and the second 

 occurred amongst my own unset specimens. Further supplies of the 

 flood-refuse yielded ten more examples, but, unfortunately, half of tliem 



