346 ADDENDA 



Orthocaetes insignis, Aube Gren. Cat. 129. This insect very 

 closely resembles 0. seticjer, Beck., in genei'al appearance, and is mixed 

 with it in our collections : the antennae, however, are darker and the 

 general shape diffei's considerably, the thorax being rather longer and 

 more paralled- sided, and the sides of the elytra sub-parallel, being 

 only contracted for the apical third ; in 0. setiyer the sides of the elytra 

 are evenly rounded, the elytra being broadest about the middle ; the 

 thorax has a shallow longitudinal groove in the centre, and a deeper one 

 on each side : these are absent or much fainter in 0. setiger ; the chief 

 character, however, lies in the raised scale-like bristles of the elytra ; in 

 0. setiger these are erect, stronger, and very slightly curved ; in 0. 

 insignis they are very strongly curved and almost decumbent and feebler ; 

 the difference is at once evident if the insect is examined sideways. 



L. 2^ mm. 



Captain Deville, while staying with Dr. Joy, discovered this species 

 in his collection mixed with 0. setiger ; Dr. Joy found it among my 

 series of the insect, and it is probably in many of our collections. 

 Cornwall (Joy) ; South Wales (Tomlin) ; Southsea (Moncreaff) (Ent. 

 Mo. Mag. xlviii. (2 Ser. xxiii. 11)12, 211). Mr. Moncreaff apparently 

 found it on the ragwort in April, and in dead leaves at the base of 

 this plant in autumn and winter (Brit. Col. v. 265). 



Rhynchites harwoodi, Joy (Ent. Mo. Mag. xlvii. (2 Ser, xxii.) 

 1911, 270). In general appearance very like R. imcinatus, Thorns., 

 blue, thorax with a slight greenish tinge, legs and antenna; cyaneous ; 

 rostrum rather long and slender, longer in the female than in the male ; 

 thorax longer than broad, distinctly rounded at the sides, closely but 

 rather variably punctured ; elytra much broader than thorax, widened 

 behind middle, stria; strongly punctured, intei\stices very narrow and 

 somewhat rugose ; apex of anterior tibiaB simple ; intermediate and 

 posterior tibipe in the male with a small tuft at apex. 



Length 3-4 mm. 



Probably not uncommon : Dr. Joy has taken it in Berkshire and 

 Hampshire. I have specimens taken by myself at Hykeham, and at Long- 

 worth Wood, Lincoln, and examples taken at Chartley Moss, Stafford- 

 shire (on several occasions) and at Ellingham Fen by the late Mr. W. 

 Garneys : it is probably not uncommon, and evidently widely distri- 

 buted. It occurs in company with both li. namos and IL uncinatus. 



From R, uncinatus this species differs in having no tuft at the apex 

 of the anterior tibia; : the rostrum is longer, and it appears to be more 

 slender, in both sexes : the thorax on an average is much the same 

 in both species, but the stride on the elytra are more strongly 

 punctured, with the interstices narrower. From R. nanus it may be 

 known by its blue colour, broader and shorter form, much longer and 

 moi^e slender rostrum, more rounded sides of thorax, and average 

 larger size. There are also slight differences in the tedeagus. 



