Limit.] RHYXCHOPHORA. 243 



loug, three times as long as broad; length 12-17 



min L. AI^IBCS, L. 



(any it* tat us, F.) 



2. Thorax with a bniad and distinct yellowish or 

 whitish band at sides ; first joint of funiculus of 

 antennae relatively short, one and a half times as 



long as broad; length 5^-12 miu I.. BICOLOR, Ol. 



II. Scape of antennae scarcely longer than the two first 

 joints of the luniculus taken together j length 4^-9 



mm L. FTLTFOBMIS, F. 



(elongates, Goeze.) 



Ii. paraplecticus, L. (phettandrii, De G. ; produc.tus, Stepb.). 

 Elongate, very narrow, black or fuscous black, clothed with grey 

 piibescence, and more or less distinctly sprinkled with a lutescent 

 or greenish powder; margins and underside lighter and more thickly 

 pubescent ; head obsoletely punctured, eyes rather prominent, rostrum 

 glabrous at apex ; thorax much longer than broad, very slightly narrowed 

 towards front, with two broad longitudinal flavescent streaks, which 

 are usually indistinct ; elytra elongate, with plainly punctured striae, 

 and terminating in two long dehiscent points ; antennae ferruginous 

 with club darker; legs black, pubescent. L. 11-16 mm. (including 

 apical processes, but not rostrum). 



Marshy places ; on Sium latifolium, also on Phellandrium ; rare ; it is one of the 

 fen species that steins to have disappeared before drainage ; it has, however, occurred 

 in other localities ; ' ; Banks of Thaaies between Fulhain and Barnes (very plentiful 

 at times) ; Isle of FJy ; Holme Fen, Hunt* ; Halvergate, Norfolk ; near Carlisle, &c." 

 (Stephens); Brugh Marsh ( Heysham) ; Horning Fen; formerly at Hammersmith 

 (one specimen only, S. Stevens) ; the species was at one time very common in the 

 fen districts ; Stephens (Illust. iv. 158) says " that the larva, which feeds on plants of 

 Phellandrium aud Sium, is said to be very injurious to cattle, when they happen to 

 swallow it with their food." 



(L. iridis, 01. (turbatuf, Gyll. ; gemellattts^ Gyll.). Much broader than 

 the preceding species, and of about the same size and general appear- 

 ance as L. alyii-us, from which it is easily distinguished by the short 

 points at the apex of the elytra ; the colour is black with grey pubes- 

 cence, powdered with yellow or greenish yellow, and the head and most 

 of rostrum, margins of thorax and elytra, and part of underside, as well 

 as two more or less distinct streaks on disc of thorax, are lighter ; hea<l 

 finely punctured, antennae ferruginous, rostrum rather long ; thorax 

 conical, gradually but sensibly narrowed towards front, longer than 

 broad, closely punctured ; elytra with rows of distinct punctures, points 

 at apex, if viewed from below, not longer than the anal segment ; legs 

 dark, with thick yellowish pubescence. L. 1-H6 mm. 



On various Umbflliferte ; the larva, according to Bedel, has been observed in France 

 on Charophyllum bullosum, Cicuta virosa and Angelica tylrestris ; very little 

 indeed seems to be known with regard to this species as British ; there is an old 

 specimen, with the apex of the elytra broken, in Dr. Power's collection, labe led 3<3-2 ; 

 on reference to his note-bcok I find that in the yenr 1836 he only mentions two 

 localities, one ' Hornsea Feu," June 6th, aud the second ' Alil<JeuLi;ill, >r iroui which 



R 2 



