28 Mr. F. P. Pascoe on new Genera and Sjpedes of 



and disappears a little way from the apex. The other two 

 species may be diagnosed as follows : — 



Omolipus corvus, Pasc. I. c. — Ater, nitidus ; prothoracis basi apice 



angustiore ; elytris fortiter seriatim punctatis. 

 Hah. Brisbane*. 



Omolipus socius, Pasc. (Ann. & Mag. Nat. Hist, ser.3. ix.p.463). — 

 Ater, nitidissimus ; prothoracis basi apice latiore ; elytris fortiter 

 seriatim punctatis, punctis distantibus. 



Hab. Lizard Island. 



ECTYCHE. 



Subfamily Amfrhjohin^. 



Clypeus a fronte discretus, antice paulo rotundatus. 

 Tibice anticce apice dilatatae, oblique truncatae. 

 Processus intercoxalis angustatus, apice rotundatus. 



Head rather short, inserted into the prothorax as far as the 

 eyes, regularly convex in front ; the clypeus large, a little 

 rounded anteriorly, separated from the front by a strongly 

 arched suture. Eyes narrow, entire. Antenna slightly thicker 

 outwards, the third joint longer than the others, the fifth to the 

 tenth more or less ovate, submoniliform, the last larger and 

 oblong. Mentum pedunculate, trapezoidal, the anterior border 

 slightly biemarginate ; labium small, membranous, transverse. 

 Maxillary lobes narrow, the inner hooked. Maxillary palpi 

 large, strongly securiform ; the labial short, thick, approximate 

 at the base. Prothorax transverse, convex, apex rather slightly 

 emarginate, sides rounded but broadly emarginate at the pos- 

 terior angle, the emargination with a tooth in the middle. 

 Elytra ovate, convex, the shoulders rounded ; epipleura broad 

 at the base, gradually narrower and almost obsolete at the 

 apex. Femora strongly clavate ; anterior tibiae toothed along 

 the outer margin, gradually thicker below, the apex obliquely 

 truncate and terminating in a stout spur inwardly, the inter- 

 mediate and posterior linear, the edges round their cotyloid 

 cavities spinous ; tarsi slender, setose beneath ; the basal joint 

 of the posterior moderately elongate. Prosternum abruptly 

 elevated, rounded anteriorly and posteriorly. Mesosternum 

 abrupt and a little excavated in front. Metasternum very 

 short. Abdomen with the third and fourth segments mem- 

 branous at their edges. Body, with the legs and antennse, 

 covered with long flying hairs. 



After Dr. Leconte, I have taken Amphidora as the type of 

 a subfamily perfectly distinct from the Adeliin^, in which 



* Not Melbourne, as erroneously stated in the 'Journal of Entomolooy.' 



