of African, Asiatic and Australian Cefoniiclce. 67 



tlie outer lobe is but slightly setose (fig. la). The inentum is 

 oblong, scarcely eniarginate in front (fig. 1 b). The anterior tibiae 

 have an obtuse tooth beyond the middle (fig. 1 c). The tarsi have 

 a minute bisetigerous pulvillus between the claws (fig. 1 (/), and 

 the mesosternal process is long, narrow, rounded at tip, and rather 

 deflexed (figs. 1 e, ly). 



Genus Narycius. 

 Sub-genus novum Platynocepiialus, Westw. 



Characteres e foemina (solum adhuc visa) deprompti. Color 

 baud metallicus. 



Caput latum, antice late concavum, angulis anticis paullo por- 

 rectis et acutis, vertice spina parva bifida acuta plana ar- 

 mato (fig. 2 a, caput a latere ; fig. 2 b, antice visum). 

 Maxillce (fig. 2c) elongataj, lobo basali dente valido apicali 

 curvato armato, lobo apicali dentibus duobus similibus ar- 

 mato. Mention latum, dimidio apicali multo angustiori, mar- 

 gine antico fere recto; palpis brevibus (fig. 2d). Pronotuni 

 conveximi, latum lateribus rotundatis, postice sub-rectis. 

 Elytra basi pronoto latiora brevia, subdepressa. Mcsoster- 

 nv.m acutum, conicum, porrectum (figs. 2e, 2f). Pedes breves, 

 crassi ; tibiae anticEe tridentata?, posticae quatuor dente medio 

 unico ; tarsi pulvillo bisetigero inter ungues instruct!. 



The insect which has served for the establishment of the sub- 

 genus proposed above is unfortunately a female, so that we are 

 unable to point out the precise distinctions between it and the 

 Indian Cijp/ionocejihahis, Westw. (Arc. Ent. i. p. 115, pi. 33, fig. 2 

 and details), of which only a single male is known. From the 

 typical Narijc'ius opalus it diflfers in the upper lobe of the maxillae 

 having only two strong curved horny spines instead of three, and 

 the mentum is not so conical, nor is it emarginate in front. As 

 these characters exist in both sexes of N. opalus, we are perhaps 

 justified in considering that the female of Cyphonoceplialus will 

 also agree with the male in having a tridentate upper lobe to the 

 maxillae, and an emarginate mentum. These characters, therefore, 

 in addition to the want of metallic colouring, will distinguish Pla- 

 tynocephalus from Cyphonoceplialus. 



Narycius {Platynocepiialus) Haniiltoni, $. (PI. VII. fig. 2.) 



Supra fulvus, nitidus, subplanus, tenuissime punctatus ; capite 

 antice concavo, dense punctato ; pronoti lateribus nigro tenue- 



F 2 



