338 PHYTOPHAGA. [Longitartiig. 



bf. Tinder-side ferruginous. 



a*. Size larger ; thorax distinctly 



punctured L. FEBRUOINKUS, Foudr. 



b. Size smaller ; thorax very finely 



punctured L. CBRINUS, Foudr. 



b. Antenna? unicolorous testaceous . . . . L. JLAVICOBNIS, SUph. 

 2. Punctuation fine.* 



A. Femora black or pitchy black, at least at apex. 



a. Length 2^-3 rain. ; elytra ovate, very 



finely punctured L. EXOLXTUS, L. 



(femoralis, Marsh.) 



b. Length 1-1^ mm.; elytra ovate, usually 



very indistinctly punctured L. PTTSILLUS, Oyll. 



c. Length 2 mm. ; elytra oblong-ovate, finely, 



but rather distinctly, punctured. 



a*. Colour darker ; head black or pitchy . L. MEDICAOINIS, All. 

 b*. Colour very pale; head reddish- 



yellow L. OCHEOLEUCUS, Marsh. 



B. Femora yellow or reddish-yellow. 



a. Head, except forehead, and abdomen pitch- 

 black; length 1^-1 J mm L. RKJCHKI, All. 



b. Head and abdomen reddish or yellowish-red. 

 a*. Length 3-3* mm. 



af. Elytra yellow ; punctuation finer . L. JACOBUS:, Wat. 

 bf- Elytra red ; punctuation coarser . L. EDTILUS, III. 

 b*. Length 2-2$ mm. 



af. Elytra very light yellow, almost 



transparent ; insect winged . . . L. GRACILIS, Kuti. 

 bf . Elytra pale reddish-yellow ; insect 



apterous. 

 a. Head and thorax im punctate; 



shoulders of elytra rounded . . L. L.EVIS, Duft. 

 1 >\':. Head and thorax finely but dis- 

 tinctly punctured ; shoulders of 

 elytra prominent L. PEJ.LTJCIDTTS, Foudr. 



It. nlg-er, Koch. Oblong-ovate, rather depressed, deep black ; 

 antennae longer than half the body, thickened towards apex, black, 

 with the basal joints yellow ; thorax moderately convex, vry finely 

 punctured; scutellum almost round, smooth; wings ample; elytra 

 widened behind, very closely and rather deeply punctured, acuminate at 

 apex; legs yellow, with the posterior femora black; the species some- 

 what resembles L. anchusce, but has the thorax more finely punctured, 

 and broader at base, and the apex of the elytra differently shaped. L. 

 2j mm. 



This species is very rare, and appears to require some confirmation as 

 British; Mr. Crotch first introduced it in the fir. t edition of his British 

 catalogue, and records two old specimens in Mr. Wollaston's collection ; 

 there are also specimens standing under the name of Thy amis nigra 

 in Dr. Power's collection from Birdbrook (Essex), Horsell and Mickle- 



* In L. rulilus the punctuation is moderately strong, and in this respect it is inter, 

 mediate between these two divisions. 



