X28 THE INSECTS OF GAYNDATI, 



small fovea on each side between the eyes, and with a shoi^t 

 transverse slightly incurved black band in the centre, and two 

 round spots of the same colour on the summit of the vertex. 

 Thorax broad, and widening gradually in an almost straight line 

 from the anterior angles to the posterior which are acute, with 

 the apex somewhat lobed in the centre, and of a deep black along 

 the line of the apical transverse line, and with the base nearly 

 truncate and marked with two transverse patches of a dark colour 

 meeting in the centre and not extending to the posterior angles. 

 Elytra closely covered with brown punctures, sinuated and 

 acuminated at the apex, and with three rows of distant large and 

 shallow punctures on each elytron ; there are also on each elytron 

 a lateral spot, and a narrow wavy subapical fascia, of an indistinct 

 brown or black. 



178.- — Hydaticus CONSANGUINEUS, Aube. Spec. gen. 

 page 160. 



179. — Hydaticus bihamatus, Aube. Sfec. page 174. 

 Eschsch. Dej. Gat. 3rd ed. page 61. 

 Goryi, Aube. Spec, page 175. 

 scriptus, Blanch. Yoy. Pole. Sticl. iv-, p- 46. 



GYRINID^. 



180.— Enhydrcs oblonods, Boisd. Voy. Astrol. Ent. 

 page 52. Aube. Sjyec. p. 653. Dej. Cat. 

 3rd ed. p. G6. 

 Australis, Brulle. Hist. Nat. Ins. y., page 237. 



181.— GrYRiNUS OBLIQUATUS, Aubc. Spec, page *''{Jl. 



182. — Gykinus convexiusculus. n. sp. 



Length 2 lines. 



Black, nitid, convex, and rather elongate. Head with two 



shallow fovese between the eyes, and the clypeus covered with fine 



strioloe. Thorax rounded behind with the anterior transversal 



line well marked and punctured near the sides, and a median 



