NEW BRITISH SPECIES, ETC., IN 1861-62. 105 



It occurs both with and without wings, and with the wings 

 imjDerfectly developed ; the specimen figured in our frontis- 

 piece having the wings very conspicuous. The usual pro- 

 portion appears to be one winged to four apterous examples. 



It is well distinguished from its congeners by its laige size 

 and long pubescence, also by the greater dilatation of the 

 anterior part of the thorax and by the oblong elytra, and 

 from all, except P. Maria, by its obtuse abdomen. 



Sp. 2. Maria, Matth., Zool. 8058 (1862), described. 

 At first sisfht resembles a minute Omalium : differs from 

 its cono;eners in the o^reater width of the bodv, the rounded 

 thorax, long slender legs, and fineness of its punctuation. 

 Three winged and two apterous specimens were taken by 

 Mrs. Matthews in Derbyshire. 



Sp. 3. PUNCTiPENNis, Fairm. et Bris., iinn. Soc. 

 Ent. Fr. (1859), 32 (Ptilium) ; Rev. A. 

 Matthews, Zool. 8058 (1862). 

 Pafisbonensis, E. W. Janson, Proc. Ent. 

 Soc. 4 April, 1859, Zool. 6614 (1859), 

 Ent. Ann. 1860, p. Ill . . (alafa). 

 DENTicoLLis, Fairm., Ann. Soc. Ent. Fr. 

 (1857), 732 {PtiUum)', Matth.; Wat. 

 Cat. Brit. Col. . . . (aptera). 

 Mr. Matthews writes that Mr. Janson, to whose per- 

 severing exertions both the above owe their introduction to 

 our lists, has again met with them this summer, and in com- 

 pany, thereby considerably confirming Mr. Matthews' pre- 

 viously expressed opinion as to the probability of their being 

 the sexes of the same species. 



One of tiie two examples of the winged form previously 

 known to science was taken by Mr. Janson in the London 

 district, March, 185S. 



