152 REPORT ON ZOOLOGY, MDCCCXLIII. 



Sch., Silones seniculus, Lixus poricollis, modestus, Heilipus scrobiculatus, 

 Anthonomus Irimnipennis, Sphenophorus discolor, subcarinatm, Bostrichus ter- 

 minal is. 2. From Sitka Apion cuprescens, Rhyncolus bmnneus, Esch., 

 Hylurgus sericeus, obesus, Esch., rugipennis, pumilus, Bostrichus cavifrons, 

 septciitrionis, nitidulus. 



The metamorphosis of several of the rhynchophorous Beetles has been 

 observed. 1. That of Choragus Sheppardi, by Leon Dufour (Ann. cle la Soc. 

 Ent. de Fr. i, p. 313) ; it lives in the dry brandies of the Whitethorn 

 (Cratfcgus oxyacantha). 2. Of Apion apricans, Hbt., by Guerin (ib. p. 65) ; 

 inhabits the seeds of Clover (Trifol.pratense). Calyptus macrocephalus (Eubaz. 

 macr., Nees), among the BKACONID.E, and Pteromalus pione, Walk., one of 

 the PTEROMALINA, have been observed as parasites. 3. Lixus turbatus, 

 Gyll., by Eversmaim (Bull. Mosc. p. 530) ; lives in the Southern Ural, on 

 Angelica archangdica. 4. CeutorhyncJms macula alba, by Klingelhofer (Eiit. 

 Zeit. s. 88) ; inhabits the heads of all the species of Poppy. 5. donas 

 scropliularia, by Huber (Mem. cle la Soc. de Phys. et d'Hist. Nat. de 

 Geneve, x, i, p. 15). 6. Hylesinus liedera, Schniitt (Eut. Zeit. p. 108), a 

 new species allied to H. rliododadylKs, living on dry Ivy branches. 



Robert (Ann. de Sc. Nat. xix, p. 12), has written upon the injury caused 

 especially by the Scolytus pygmaus., to elms and oaks. The avenues of elms 

 in the high roads in the neighbourhood of Paris are in particular very 

 obnoxious to the attacks of this insect. The author proposes two methods 

 for the preservation of these trees, both of which, however, appear to be 

 rather extraordinary. 1. To cover them with an air-tight coating (as, for 

 instance, of caoutchouc), by which the insects, together with the larvse, are 

 suffocated. 2. To make longitudinal or oblique incisions through the bark 

 at certain distances, and to allow these incisions to cicatrize, since the author 

 states that he has observed that the Scolytus spares such cicatrices. 



COLYDII. Aube (Ann. de la Soc. Ent. de Er. 2 ser. i, p. 93, pi. 4) has 

 characterized a new genus, Philothernms, which is very closely related to 

 Cerylon, and is distinguished chiefly by the evidently eleven-jointed antenna?, 

 with two-jointed knobs. The oral organs, also, correspond very closely with 

 those of Cerylon, excepting the tongue, which differs in consistence and form, 

 Ph. montandonii has been found in France in tan-beds; our collection 

 possesses various American species. 



Gueriu (ib. p. 69, pi. 2), has published a new species of Nyrmecixenus, N. 

 vaporarionim, found in forcing-houses for pines. It occurs also in Germanv. 



Maimerheiin (Bull. Mosc. p. 300) gives a short description of RJiaaodera 

 tuberculata, Esch., from California ; the characters of this genus, which is 

 very closely allied to Sarrotrium are, however, by no means established. 



A new species is, moreover, Cis vitulus, Manucrh. (ib. p. 299), from 

 California. 



