ENGID^E. SYNCHITA. 95 



eighth and ninth large, truncate perfoliate; the tenth also very large, ovate, 

 and with the eighth and ninth forming a Particulate club. Palpi subequal, 

 filiform, the terminal joint much longer than the others, subcylindric, and 

 slightly acute at the apex: mandibles stout; head very large, elongate, sul- 

 cate anteriorly, as broad as the thorax, the latter subcylindric, as long as the 

 head: eyes small, lateral, somewhat immersed: body linear-elongate, cy- 

 lindric : legs rather short, stout. 



The very elongate slender form of this genus, combined with the 

 magnitude of its head, which has a deep frontal sulcus, and the 

 dissimilar structure of its antennas and palpi, are the most evident 

 points of distinction between it and its allies. 



Sp. 1. elongatum. Glabrum, nigrum nitidum, antennis pedibusque riifis, elytris 

 vage punctatis, basi macula que intra apicem testaceis, fronte profundi sulcato. 

 (Long. corp. 2^—3 lin.) 



Der. elongatus. Linne.—Ne. elongatum. Steph. Catal. 90. No. 965. 



Shining black, glabrous, punctate; head convex, with a deep longitudinal 

 channel on the forehead : thorax truncate at the base and apex, as broad as 

 the head anteriorly, somewhat narrower posteriorly, the sides and base slightly 

 margined: scutellum piceous: elytra somewhat remote from the thorax, 

 than which they are rather broader ; the base is rufo-testaceous, the apex 

 glossy black, with an ovate rufo-testaceous spot towards the tip : legs rufo- 

 testaceous; antennae ferruginous, with the club dusky. 



It varies slightly in the proportion of the colour on the elytra; in some examples 

 the anterior space is about equal to a third of their length, in others to about 

 half; the apical spot is also larger or smaller in different individuals. 



A single specimen caught by myself near Darenth-wood in June, 

 1815, and given to the British Museum. " In plenty during 

 March and April last, in an old elm rail near Sydenham- wood ." — 

 Mr. T. Ingall, who kindly presented me with a series of the insect, 

 and informs me that a single example has been recently captured 

 by Dr. Howitt, out of a hawthorn bush near Nottingham. 



Genus CLV. — Svnchita, Helltoig. 



Antenna much shorter than the thorax, rather stout, the two basal joints robust, 

 obconic ; the seven following very short, coarctate, and gradually incrassated ; 

 the tenth very large, rounded, with an obsolete, small appendage at the apex. 

 Palpi filiform : mandibles slender, much bent : head small, short : eyes rather 

 large and prominent: thorax transverse-quadrangular, the angles obtuse, the 

 sides margined, the lateral ones crenated : body oblong-ovate : elytra with 

 the apex rounded : legs short ; femora subclavate. 



Synchita differs from Cerylon in having the two basal joints of 

 the antennae large, the head rather small, thorax transverse-qua- 



