;;-lS Mr. W. L. Distant on Pontatomitla?. 



anterior coxse, tliird joint reaching the intermediate coxre ; 

 ])ro- and mesosterna centrally longitudinally carinate ; abdo- 

 minal basal spine long, almost reaching the anterior coxse ; 

 abdomen distinctly, centrally, longitudinally ridged ; odori- 

 ferous apertures transverse, elongate ; legs of moderate 

 length; tarsi three-jointed, the secontl joint small. 



Allied to Priassus, Stal, from which it ])rincipally differs 

 by the structure of the pronotum, Avhich in Okeanosh shorter, 

 the lateral angles not acutely produced, the anterior angles 

 distinctly acutely prominent, the lateral margins entire, 

 neither creimlate nor serrate. 



Okeanos qnelpartensis. sp. n. 



Purplish brown ; the anterior area of pronotum, apex of 

 scutellum, connexivum, body beneath, and legs ochraceous ; 

 lateral pronotal angles black ; central basal margin of pro- 

 uotum, lateral margin-s of scutellum (not reaching apex), and 

 lateral margins of corium (more or less) resplendent oliva- 

 ceous green ; antennae black, fourth and fifth joints fuscous, 

 the first joint and bases of fourth and fifth joints ochra- 

 ceous ; head thickly, coarsely, darkly punctate ; pronotum 

 with the anterior pale area moderately punctate, the basal 

 area coarsely punctate and moderately rugulose ; scutellum 

 somewhat sparingly coarsely punctate, on central disk 

 obscure indications of a central longitudinal ridge; corium 

 very thickly and somewhat coarsely punctate ; prosternum 

 finely but distinctly punctate; abdominal spiracles black; 

 other structural characters as in generic diagnosis. 



Long. 18 mm.; exp. pronot. angl. 10 mm. 



Hah. Corea; Quelpart Island [S. Jcliikaica, Brit. ]Mus.). 



GuuEA, gen. nov. 



Head about as long as breadth between outer margins of 

 eyes ; lobes equal in length, but the apices o£ the lateral lobes 

 t)bliquely inclined inwardly ; lateral margins distinctly 

 sinuate a little in front of eyes, and thence to apex slightly 

 reflexed ; ocelli nearer eyes than to each other ; antenna 

 five-jointed, first joint stout, remaining joints slender, first 

 not reaching apex of head, remaining joints almost subequal 

 in length ; pronotum about half as long as broad at base, 

 lateral margins concavely oblique, somewhat coarsely serrate, 

 lateral angles broadly slightly i)rominent, their apices sub- 

 truncate, anteriorly rounded, posteriorly slightly toothed or 

 angulated, anterior angles distinct, deflected from about 

 middle towards head, anterior margin truncate behind base 



