Bn'twh Species of Ilomalota. 119 



longitudine latitudine haud breviore ; abdomine seg- 

 mentis 2-4 crebre subtiliter punctatis, 5° parce punctato, 

 6° fere laevigato. Long. 2 lin. 



Mas ; abdomine segmento 7° ventrali producto, apicem 

 versus angustato, apice ipso emarginato-truncato. 



Fern. ; abdomine segmento 7° supra et infra apice ro- 

 tunda to. 



Var. — -Rufo-testacea, capite abdomineque cingulo ante 

 apicem fuscis. 



Very like a large brightly-coloured H. elongatula, but 

 still larger than the largest of that species. Antennae 

 moderately long and slender, but little thickened towards 

 the apex, pitchy, with the basal joints reddish-testaceous ; 

 joints two and three of about equal length, four to ten 

 each one a little shorter and broader than its predecessor, 

 the first of them longer than broad, the last of them not 

 quite so long as broad; eleventh joint moderately long, 

 not quite so long as the tenth. Palpi, and parts of the 

 mouth, reddish-yellow. Head narrower than the thorax, 

 suborbiculate, with a distinct short channel on the vertex 

 finely but not closely punctured. Thorax a little nar- 

 rower than the elytra, about as long as broad, not 

 narrowed behind, with a longitudinal channel in the 

 middle ; closely and finely punctured ; scarcely black in 

 colour, generally more or less distinctly reddish-brown. 

 Elytra about a third longer than the thorax, their length 

 slightly greater than their width, of a reddish or brown- 

 ish-red colour, closely and finely punctured. Abdomen 

 black, with the extremity, as well as the hind margins of 

 the segments, more or less distinctly reddish-yellow ; 

 segments two to four closely and finely punctured, fifth 

 more sparingly, sixth nearly smooth. Legs reddish- 

 yellow. 



In the male, the under plate of the seventh segment 

 of the abdomen is produced, and narrowed towards the 

 apex, but scarcely bent upwards ; the apex itself is trun- 

 cate, and a little emarginate ; the hind margin of the 

 upper plate is not at all emarginate. In the female, the 

 upper and under plates of the seventh segment both have 

 the hind margin gently rounded. 



This species varies considerably in colour. 



Not uncommon in marshy places in the neighbourhood 

 of London. It occurs elsewhere, but, apparently, more 



