RECENTLY DESCRIBED FORMS OF PALiEARCTIC LEPIDOPTERA. 259 



Lasius niger in the cliffs at Sandown. Specimens introduced into a 

 small plaster nest containing L. flavus were all killed by the flavus ^ s. 



{To he continued). 



Chastocnema arida, Foud., a species of Coleoptera new to Britain. 



By HORACE St. J. K. DOMISTHORPE, F.Z.S., F.E.S. 



C. arida, Foudras, " Altisides," p. 122 (1859-60). — Ovata, 

 ciipreo-fenea, labro nigro, obtuso ; antenuarum articulis sex primis 

 ferrugineis ; thorace angustiori tenuissime punctulato ; elytris 

 extrinsecus striato-punctatis, punctis dorsalibns duplicatis vel confusis. 

 2 S alis incompletis. ^ Aedoeagus arcuatus late profundeque 

 canaliculatiis ; apice acute lanceolatus, leviter trunculatus. Long. 

 l-75mm. — Larg. 1mm. 



This species comes next to C. hortensis, Geof. {aridella, Vk.), 

 from which it may be known by its narrow thorax, which is 

 much more finely punctured, the granulation on the vertex being 

 hardly distinct. My specimens are smaller and narrower than C. 

 hortensis, and have the shoulders more sloping. I sent a specimen to 

 my friend, Capt. Sainte Claire Deville, as they did not agree with any 

 of our species, and he writes, " It is certainly arida, Foud., a neglected 

 species, but widely distributed in France." 1 swept several specimens 

 in the Whitefield Woods, near Eyde, Isle of Wight, on August 26th, 

 1909. It must not be confused with ('. aridula, GylL, or C. aridella, Pk. 

 (hortensis). In the Ent. Ilecord, 1904, p. 83, Newbery writes of 

 Chaetocnema confusa, another of our species : "It seems doubtful if the 

 confusa, Boh., of our collections, is identical with Bedel's species, 

 which is described as 'blackish-bronze.'" This, however, exactly 

 describes our species! which I have recently taken in some numbers 

 in Wicken Fen, and Dr. Joy takes it at Wellington College. 



Recently described forms of Palaearctic Lepidoptera. 



By max GILLMER. 



Owing to the rapidity with which new forms of European Lepidop- 

 tera are being described, and in some cases redescribed, in the 

 continental literature, I have been asked by Mr. Tutt to provide a list 

 of those that have recently come under notice, together with references 

 to the descriptions. As a first instalment I, therefore, forward the 

 enclosed : — 



From Berne's Schinetterlinqsbuch, new edition, edited by Dr. H. 

 Eebel, pt. 1 (February, 1909), pt. 2 (March, 1909), pts. 3-6 (June, 

 1909), p. 20, Pyraineis cardui, L., ab. ocellata, Ebl., n. ab. ; p. 31, 

 Brenthis pales, Schifl"., ab. pseiidothalia, Rbl., n. ab. ; p. 83, Arf/ymiis 

 aglaja, L., ab. albomaculata, Rbl., n. ab. ; p. 34, Argynnis niobe, L., ab. 

 extincta, Rbl., n. ab. ; p. 37, Melanargia galatea, L., ab. aperta, Rbl., n. 

 ab. ; p. 40, Erebia ceto, Hb., ab. albomacnlata, Rbl., n. ab. ; p. 43, 

 Erebia aethiops, Esp., ab. caeca, Rbl., n. ab. ; p. 45, Oeneis a'ello, Hb., 

 ab. ( J ) unicolor, Rbl., n. ab. ; p. 46, Satyrus hermione, L., ab. australis, 

 Rbl., n. ab. ; p. 51, Pararge achine, Sc, ab. althaea, Rbl., n. ab. ; p. 52, 

 Epinephelfl jnrtina, L., ab. (?) biocidata, Rbl., n. ab. ; ab. (?) caeca, 

 Rbl., n. ab. ; p. 54, Cnejumjjiiipha iphis, Schifi'., var. (ab.) e.commatica, 

 Rbl., n. var. ; Coenonyiiipha arcania, L., ab. (?) schiiiiac, Rbl., n. ab. ; 



