PREFACE. XV 



volume contains the genera Halictus (Zool. 2037, 2100 and 2167), 

 Hylaeus (2200), Cilissa (2207), Ammobates (2212), and Dasypoda 

 (2241) : in the genus Halictus four new species are described, — H. 

 longulus, found by Mr. Charles Bowring in the Isle of Wight, — 

 H. prasinus, taken by Mr. Dale at Barmouth, by the Rev. Mr. Little in 

 Scotland, and by the author at Hawley, in Hampshire, — H. zonulus, 

 taken by the author near Woolwich, and by Mr. Walcott near Bris- 

 tol, — H. maculatus, taken by the author in Hampshire ; the whole of 

 these are new to science. 



In Coleoptera, the result of assiduous collecting has been eminently 

 satisfactory, several extremely rare species having occurred in some 

 abundance. The following are novelties : Pytho depressus and Ce- 

 tonia aenea, reported by Mr. J. F. Stephens (Zool. 1996) as having 

 been taken by Mr. Weaver in Scotland ; Tetratoma Desmaretsii is 

 described (Zool. 2109) by Mr. E. W. Janson, and taken by himself in 

 Henhault Forest, near London ; Trichius zonatus, described by Mr. 

 F. Smith (Zool. 2216), and taken by Mr. R. Weaver in Scotland; 

 Leptinus testaceus, described by Mr. Hardy (Zool. 2277), and taken 

 by Mr. W. E. Janson, at Box Hill, in Surrey; and Badister peltatus, 

 recorded by myself (Zool. 2277) as in the cabinets of Mr. Ingall and 

 Mr. S. Stevens: this insect was described many years since by myself 

 under the name of Trimorphus Erro. 



In Orthoptera, I have to notice the re-appearance of the migratory 

 locust in small numbers, during the months of August and Septem- 

 ber; and Locusta subcasrulipennis is recorded by Mr. Stephens 

 (Zool. 1996) as having occurred at Southampton. 



In Hemiptera, Mr. Walker has described no less than forty-three 

 new species of Aphides (Zool. 2217 and 2246) with great minuteness, 

 specifying the plants on which they feed. 



In Zoophytes, Mr. A. H. Hassall has described (Zool. 2223) three 

 new British species, under the names of Coppinia mirabilis, Campa- 

 nularia serpens and Sertularia gracilis ; but his paper is incomplete, 

 inasmuch as he gives no information as regards locality, or the cir- 

 cumstances under which these zoophytes occurred. 



