61 



tliorax does not very nearly toncli the anterior margin, but- 

 nearly reaches the base, the flattened transverse basal space 

 being very narrow. On either side of the central channel at 

 the base is a fairly defined oblique elongate impression. The 

 elytra are more than twice the length of the thorax (being as- 

 eleven to four and two-thirds), but they are not wider than it ; 

 across their shoulders they are (to their greatest width) as f our- 

 and a half to seven ; their front margin is very little emargi- 

 nate, and their anterior declivity very little hollowed out. The 

 thickened humeral portion of the elytral margin is very small,. 

 and is not erect, but laid back flat on the surface of the elytron ;; 

 the sides are gently arched, and the reflexed margins are not 

 particularly narrow ; the surface is regularly convex, moder- 

 ately shining, and quite devoid of sculpture (some examples 

 have the faintest possible indication of wavy longitudinal lines), 

 except the following on each, viz., on the disc a large puncture- 

 not far from the apex, a row all across the anterior declivity of 

 about six smallish punctures, along the lateral margin a row of 

 from eighteen to twenty punctures. On the anterior tibi» the- 

 four teeth of the exterior ridge are all well-defined, of which the 

 lowest is distinctly, and the next faintly discernible from b, 

 point perpendicularly above the upper face of the tibia ; the- 

 inferior ridge has nine well-defined teeth commencing well 

 back from the apex of the tibia, but scarcely behind the front 

 base of the upper of the two large apical teeth. Length, 21-27' 

 mm. ; width, 7-9 mm. 



This species does not seem to vary much except in respect of 

 size. 



0. fugitimim, sp. nov. Nitidum ; violaceo-nigrum ; prothorace^ 

 elytrisque laete csBruleo-marginatis ; capite transverso ; 

 sulcis longitudinalibus profundis, antice fortiter postice 

 leviter divergentibus, postice fortiter collum versus cur- 

 vatis, ante partem postremam linea curvata fortiter con- 

 junctis; antennis sat robustis ; prothorace dimidia parte 

 latiori quam longiori, canaliculato, marginato, basi utrinque 

 sat evidenter oblique impresso, antice late emarginato,. 

 lateribus antice leviter rotundatis postice sinuatis basi sat. 

 fortiter sinuatis, angulis posticis vix perspicuis ; elytris 

 vix dimidio longioribus quam conjuuctim latioribus, pro- 

 thorace paullo plus duplo longioribus nonnihil latioribus, 

 autice minus angustatis subtruncatis, marginatis, postice 

 bipunctatis, humeris subrotundatis, lateribus sat fortiter 

 arcuatis; tibiis anticis externe bidentatis. Long., 20 mm.;, 

 lat., 7i mm. 



This species is allied to G. IcBvigafum, Macl. It differs in 

 colour, the thorax and elytra having a bright blue border and 



