7/ 



43. 

 SCOLYTUS DESTRUCTOR. 



Ordee Coleoptera. Fam. Bostricidse, Lat., Jjeach. 



Type of the Genm Bostrichus Scolytus Fab. 



ScoLYTUS Geoff., Lat., Oliv., Leach. Bostrichus Fab. Hylesinus 

 Fab., MacLeay. Ips Marsh. 



AnteniKB inserted close to the interior margin of the eyes, shorter 

 than the head, clavate, basal joint large, second short, third 

 small, five following transverse, the club (formed from the ninth 

 joint) compressed, obovoid, composed of three closely united 

 plates, (f. 6.) 

 Labruni none.? 



Mandibles arched, concave beneath, triangular, somewhat acute, 

 hairy at the base. (2.) 



Maxillce membranaceous, ciliated internally with strong short 

 bristles, very hairy externally : Falpi not longer than the man- 

 dibles, 4-jointed, first joint very short, second and third quadrate, 

 terminal joint slender. (3.) 



Mentum long, dilated anteriorly : Falpi much longer than the 

 maxillary, pilose, first and second joints very robust, terminal, 

 somewhat ovate, oblong : Lip very small. (J?.) 



Head someivhat globose. Body cylinclric, obliquely and ahruptly trun- 

 cated at the apex. Wings 2 very long. Legs short, robust. Tibiae 

 compressed, anterior terminated by a curved spine. Tarsi '^^-jointed, 

 third joint bifid, fourth long, with two simple clatvs (5 afore leg). 



Destructor Oliv. Fhit. t. 4. n. IS.jjI. 1. /. 4. a. b. c. Scolytus Fab. 

 Ent. Syst. t. l.pars 2 p. 366, n. 9. Marsh. Fnt. Brit. p. 53. n. 6. 

 Black, shining, head thickly covered above with short yellowish 

 bail's. Thorax finely punctured. Elytra chesnut, frequently with 

 a large dark spot extending across the centre, each having seven 

 striae with punctures, and seven alternating lines of more minute 

 punctures. Wings fuscous. Abdomen very hairy. Legs and 

 antennae rufous. 



Ln the Author's and other Cabinets. 



The subject of the present article having created considerable 

 interest from the devastation it has made in St. James's and 

 Hyde Parks, and the public attention having been excited by 

 a valuable and learned report,"^ drawn up, at the request of Lord 

 Sidney, the Ranger, for the Treasury, by W. S. MacLeay, Esq., I 

 have been induced to describe and figure this formidable little 

 insect, hoping to assist in the laudable object of my friend, by 

 enabling those who suffer from its depredations to apply a remedy 



* ^\Ae Erfinhprgh Phllo.'iopJiirrd .Join-nal, No. XXI. Jiily 1824. p. 123. 



