1868.] 2J 



P. PERSONATUS. 



JFuseo-jnceits; ocGipitefasciis,fronte lineis inmirvis,niveis; anfennis articulo 

 prima niveo,Jlagello pallido, apice ohscuriore ; pedibus testaceis^femoribus 



siibtus niveis ; alls pallide cinereis, anticis ■pterostigmate angusto, ovali, 

 fusco, ufrinque pallide marginato. 



Long, cum alis 3-4 mill. ; exp. alar. 7-8 mill.. 



Resembling P. adustus and of the same group, but smaller. The 

 eyes of tbe male smaller, head darker, almost blackish, with the 

 snow-white lines very conspicuous. These lines are arranged as fol- 

 lows : above on each side there is a broad straight band, slightly excised 

 interiorly near the ocelli, and interrupted a little in front, bent out- 

 wards on the occiput in order to go near the eyes, where they are 

 bifurcated ; between these bands there are two small lines of the same 

 colour behind the ocelli, and a point in front of them ; the tubercles 

 of the ocelli dotted with snow-white ; forehead with six lines curved 

 outwardly, the last on each side trifurcated on the outside. Antennae 

 very slightly pilose, yellowish, brown at the tips ; the basal joint snow- 

 white, the second brown. Thorax with a line above and the sutures 

 whitish, abdomen spotted with the same. Legs dull yellowish, the 

 tarsi brownish, the thighs whitish beneath. JSTeuration and colours of 

 the wings as in P. adustus, but the pterostigma is bordered with white 

 on the sides, and opposite to it on the posterior margin there is a little 

 brown clouding. 



Madeira. 



I know no similar living species. In the female, which is slightly 

 the largest, the two bands on the bead arc less remarkable, narrower, 

 and the branches on the occiput enlarged. The lines on the forehead 

 are rather less curved. Otherwise I find no difference from the male. 



Nos. 9 (J ; 61 $ . 



(To be continued). 



DESCRIPTION (NOT HITHERTO PUBLISHED) OF CEUTHORHYNCHIDEUS 

 MINIMUS, WALTON. 



BY E. C. EYE. 



I am enabled, by the kindness of Mr. Gr. R. Waterhousc, to bring 

 forward a description of this insect, which has hitherto been " vox et 

 prcoterea nihil,'''' and is now not represented by any known example. 



The. late Mr. John Walton, in a letter to Mr. Waterhouse, dated 

 9th September, 18G0, thus characterizes the species in question : 



