isTii.-" 23 



Jassits punctulatus, Forel, Bull. Soc. Vaudoise, Vol. v, p. 253, t. 2 



(1857). 

 Macropsis punctiiosa, Kirschb., Ciead. 168, 2. 



Above and beneatli pale bluish-green. 



Head : crown and pronotwm generally finely black punctured, on either side next the 

 base occasionally with a few fine black punctures. Elytra thickly and finely 

 black punctured. Length 1^ — 2 lines. 



Less than half the size of the next species. At present it seems 

 doubtful to me whether it really belongs to this genus. 



Very common on Mickleham Downs, in July, amongst Helian- 

 themum. I have also taken it in other localities, but sparingly. 



Species 2. — Maceopsis lanio, L. 

 Cicada lanio, L., S. N. 464, 5. 

 /r/ssK« /«Hio, Fab., S. R. 86, 4 (1803). 

 lassus brumieus, Fab., S. R. 87, 10 (1803). 

 Ilacropsis lanio, Marshall, Ent. Mo. Mag., Vol. ii, p. 102 (1865). 



Above and beneath green. 



Head : crown, pronotiim, and scutellum pale or reddish-brown, or spotted orirrorated 

 with reddish-brown. Elytra green, thickly and irregularly crenulate pmictated 

 between the nerves. Length 3i — 4 lines. 



The largest of the British species of this group, and common 

 everywhere. 



It is within the range of probability that M. prasina. Fab., may 

 be found in this country, as Fieber's localities are of wide extent, for 

 he gives Germany and Russia, and possibly the following diagnosis 

 may be of use in leading to its recognition. 



Leek-green. Elytra faintly punctured ; the channel upon the 

 scutellum horse-shoe shaped. Abdomen above, next the base, in both 

 sexes red. Length 3t3 — 4 lines. The crenulated punctures on the 

 elytra are not so deep as in M. lanio, nor are they black as in M. 

 microcephala. 



Genus IDIOCEBUS, Lewis. 



One of the great distinctive peculiarities of this genus lies in 

 the antennae of the ^ of nearly every species, and, without any 

 other character, would be sufficient to stamp it as an Idiocerus as laid 

 down by Lewis in the Transactions of the Entomological Society, viz. : 

 at a gr.eater or lesser distance from the apex of the antennae there is 

 an ovate, compressed, generally black plate, a figure of which may be 

 seen in Curtis's B. E., pi. 733, fig. 4, and Burmeister's Gen. Ins., genus 

 JBythoscopus, figs. 5 and 6. In some instances the species, from their 

 similarity in color and markings, are extremely difficult to separate, 

 and this has previously led to errors in identity, and it is possible that 

 even this attempt of mine may not be without some faults. According 

 to Fieber's Catalogue there were some 34 species known to him as 

 European. Of these we possess 8, which arc determinable. 



