The elongated narrow and cylindric form of these insects di- 

 stinguishes them from all the neighbouring genera. The fol- 

 lowing are the species recorded as British. 



A. Elytra acuminated at the apex, sometimes gaping. 



3. productus Mars. MSS. — paraplectica Panz. 6. 15? — tur- 



batus Gi/Il. ? 



Length 6^ to 8^ lines. Subfusiform, thickly covered with 

 minute punctures and yellowish hairs ; antennae castaneous, the 

 club black, 2nd joint stouter and shorter than the 3rd ; a slight 

 ridge down the rostrum with a puncture between the eyes ; 

 thorax with large scattered punctures and two yellowish stripes 

 extending down the head and rostrum ; elytra terminated by 

 two stout straight acute spines, each having ten deeply punc- 

 tured lines united in pairs at both extremities, the external 

 margin yellow with pubescence. 



I met with specimens the 18th July upon the Phellandrium 

 at Whittlesea Mere. Mr. Scales took it in August in ditches 

 on the marshes at Halvergate in Norfolk, and it occurred in 

 abundance a few years since in a marsh near Fulham. 

 2. paraplecticusZmw. — Don.lO. 348. 2. — Phellandrii, DeGeer. 



" Fuscous-cinereous, pubescent, powdered greenish, elytra 

 mucronated and gaping at the apex, antennae ferruginous, club 

 fuscous." Gi/ll., who adds, — the apical spines are curved and 

 acute. — This species is found on the Phellandrium aqiiaticum in 

 July. Linnaeus says, " the larva lives in the stalk and is often 

 sticking to it under water. It is supposed to cause the Para- 

 pleffia in Horses." It has been found in the Isle of Elv, and 

 in a marsh near Carlisle. 



B. Elytra unarmed or rounded at the apex. 

 1. Kscaxm Linn.'? — Panz. 4<2. 13. 



Length 5^ lines. Slender, cylindric, clothed with very fine 

 hoary pubescence, forming a yellowish margin to the sides of 

 the thorax and elytra ; head and thorax thickly punctured, 

 with a deep fovea between the eyes : elytra obscurely spotted 

 with grey hairs, having ten punctured striae on each. 



Mr. Sparshall is said to have a specimen : the foreign ones 

 that I possess have not acuminated elytra, in which respect 

 they agree with the Linnean description. 



4. angustatus Fab. — Cuit.Brit.Ent.pl. 542. — lateral is »S/^J9. var.? 

 This insect is often covered with the pollen of flowers, giving 



it a yellow or orange colour, especially on the sides. 



It was first met with on aquatic plants near Shoreham, also 

 at Hickstead, Sussex, in July, and at Sydenham by Mr. In- 

 gall. The specimen figured and two others were taken by 

 Chas. Pickering, Esq., the middle of last September, near the 

 Lover's Seat, Hastings : they were swept off grass. I saw a ^ 

 very fine specimen on the leaf of a broad-bean near Blaye in 

 the South of France the 9th of June. 



Sisymbrium Sophia (Flix-weed) is represented in the Plate. 



