120 Dr. Sharp^s Revision of the 



rarely. I have a specimen from as far north as Inver- 

 ness-shire, and have also seen the species from Germany. 

 H. londinensis may readily enough be mistaken for 

 any of three other species, luridipennis, elongatula, and 

 terminalis. From luridipennis it is distinguished by its 

 narrow form, bright colour, not transverse thorax, and 

 less marked male characters. From elongatula its larger 

 size, brighter colour, rather more transverse penultimate 

 joints of the antennae, and the male chai'acters (approach- 

 ing luridipennis) distinguish it. It has much the colour of 

 terminalis (a species not yet found in Britain) , but has 

 slender antennge, which are also darker in colour ; it is 

 larger, and has dijfferent male characters. 



22. Homahta liygrotopora. 



Latior, fusco-nigra, antennis piceis, basi piceo-testa- 

 ceis, elytris fuscis, pedibus obscure testaceis, confertim 

 subtiliter punctata ; thorace transversim subquadrato ; ab- 

 domine supra segmentis 2-4 sat crebre subtiliter punctatis, 

 5° sparsim punctate, 6° fere laevigato. Long. If lin. 



Mas J abdomine segmento 7° ventrali evidenter pro- 

 ducto, apicem versus angustato, apice i]3so rotundato- 

 acuminato. 



H. liygrotopora, Kr. Ins. Deutsch. ii. 220; Wat. Cat. 

 H. opacula, Th. Sk. Col. ix. 272 (forte). 



Like H. elongatula, but larger, broader, of a more ob- 

 scure colour. The antennas are moderately slender, 

 scarcely thickened towards the apex ; pitchy black, ob- 

 scurely paler at the base ; joints two and three moderately 

 long, two a little longer than three, four to ten differing 

 but little in length, the first of them longer than broad, 

 the last of them about as long as broad; eleventh joint 

 about half as long again as the tenth. Palpi pitchy- 

 yellow. Head rather broad, narrower than the thorax, 

 the disc flat, finely, not very thickly punctured, dull. 

 Thorax narrower than the elytra, about one-third broader 

 than long, scarcely narrowed behind, with an indistinct 

 impression in the middle in front of the scutellum ; 

 very finely and pretty densely punctured. The elytra 

 are of an obscure pitchy-brown colour; about one- 

 third longer than tlae thorax, their length not quite so 



