i«<i 35 



A monstrous specirnou of Z«C(7««s c^/t?/*', in whicli the left-Land 

 Bide of the head is f urnislied with a lon^, but contorted male mandible, 

 whilst the right mandible is short and triangular, like that of the female, 

 was figured by Dr. King (Yerhandl. d. Xaturf. Gesellsch. Berlin, 

 1829, pi. iv, f. 1 ; copied by myself in Loudon's Mag. ISTat. Hist, iv, 

 p. 435), and by Asmuss (Monstros. Coleopt., pi. x). 



Oxford : 6th June, 1874. 



DESCKIPTION OF A NEW SPECIES OF CETONIAB^. 

 BY D. SUAEP, M.B. 

 AOESTBATA SaMSON, n. Sp. 



Sujyra viridi-anea, sat micans ; siibfus ccnea, laterihus fulvo-maai- 

 hitis ; 2>>'othorace laterihus antice omnino immarr/inatis. 



rLong. Corp. 50 mm. 

 ^ J, Laf. „ 23 mm. 



\,Long. antennariim JlaheUl (5 mm. (vLv) . 



r^Long. Corp. 51 mm. 

 $ \ Laf. „ 24 mm. 

 i^Lonr/. ant.flah. 5 mm. 



Clypcus in front strongly punctured, its lateral margins but little raised, the 

 teeth formed by these moderately long and rather stout. Thorax not so long as 

 broad (its length along the middle IG mm., its greatest breadth 19 mm.), its sculpture 

 Tcry fine ; it has a fulvous spot at the exterior margin on each side, and the raised 

 lateral margins are entirely wanting on its anterior half. The exposed portion of the 

 scutellum is elongate and narrow. Shoulders fulvous. Elytra distinctly sinuate at 

 the extremity, the sutural line dehiscent . towards the apex, the apical teeth rather 

 stout. Under-surfaco metallic, the sides of the breast and abdomen with fulvous 

 marks ; sides of the abdomen slightly punctured, but without any rugosities. Angle 

 of the hind coxie produced into an acute spine. Mcsostoinuil process ratlicr long 

 and narrow, not dilated at the extremity. 



Habitat, Silhet. 



This fine insect is remarkable amongst its allies from its large size 

 and broad form, and may be distinguislied from the hitherto described 

 species of Agcstrata by the fact that the side mai'gins of the thorax 

 are quite wanting in the front part. The two specimens before me 

 (cj& ? ) differ in the colour of their legs ; iu the male individual, the 

 femora are reddish, with a brassy streak along the middle, while in the 

 female the hiiul femora are entirely metallic, and tlie red mark;^ on the 



