64 THE ENTOMOLOGIST. 



breed those of allied groups. On the 23rd of June I bred 

 Argyresthia nitidella. The larva is yellowish green ; head 

 light brown ; shield faintly indicated ; spiiacular line light 

 green. This larva, when aboiit to spin up, spins a loose, 

 beautifully reticulated, lace-like web, within which the close 

 oblong cocoon is enclosed. — John Peers. 



En torn ologica I Periodicals. 



The ' Entomoloyisfs Monthly Maf/azine.'' — No. 2 contains 

 four principal articles, intituled " On the Genus Polycentro- 

 pus and allied Genera, by R. M'Lachlan, F.L.S." ; " New 

 Species of Butterflies from Guatemala and Panama, by H. W. 

 Bates, F.Z.S." ; " Descri])tions of the British Species of Ste- 

 nus, by E. C. Rye ;" and " Lepidoptera at Rannoch, by C.G. 

 Barrett." JNlr, M'Lachlan's papers are always acceptable, but 

 the value of the present contribution seems to me somewhat 

 impaired by the use of abbreviations not generally under- 

 stood, and of which I see no explanation, such as " app. sup." 

 " app. inf." 1 have a great aniipathy to all abbreviations, and 

 have always endeavoured to do without them, believing that 

 a little attention to phraseology will tend more to economise 

 space than the most carefully prepared code of abbreviations. 

 Mr. M'Lachlan gives brief characters of two new genera and 

 one new species as under : — 



Genus Ecnomus, M'Lachlan. 



In which the first apical sector of the fore wings ends in 

 a forked cell, but with the following characters ])resented in 

 the hind wings. These wings are very narrow at the base, 

 and scarcely folded ; the costal margin is slightly elevated in 

 the middle ; the ramus discoidalis runs close to the costal 

 margin, the upper branch simple, the lower forked, but no 

 closed discoidal cell. The intermediate tibiae and tarsi in 

 the female are only slightly dilated. Sp. Ecnomus teuellus 

 of Rambur. 



Genus Neureclipsis, M'Lachlan. 



One striking character is the absence of the transverse ner- 

 vule, placed between the costa and subcosta, towards the 

 middle of the costal margin. This is present in all the other 

 genera of Hydropsychida3, with tricalcarate anterior tibiae, 



