438 Mr. J. Scott on new Genera and Species 



posteriorly by a white lunate patch ; anterior margin white to 

 beyond the middle, where the colour is widest ; edge narrowly 

 black ; posterior margin black ; apex and a round spot a little 

 below the inner posterior angle white. Membrane black, apex 

 with an oval white patch. Sternum, black : prosternum finely 

 wrinkled on the sides, and sparingly and delicately punctured, 

 anteriorly as far as the channel somewhat deeply punctured. 

 Legs black : coxa;, second and third pairs at the apex white : 

 thighs black ; first pair clothed with long erect dark hairs ; 

 second and third pairs broadly white at the base, all the pairs 

 at the apex narrowly yellowish white or brownish : tibia 

 black : tarsi piceous, second joint palest. 



Abdomen black, beneath clothed with a somewhat golden 

 pubescence : connexivum black ; fifth and sixth segments 

 with a yellowish-white patch exteriorly. 



Length 3 lines. 



Genus Leth^eus, Dallas. 



Lethmis Dallasi. 



Piceous, shining, finely punctured. 



Head dark piceous or black, very finely and thickly punc- 

 tured above and beneath, except a narrow space next the 

 basal margin. Antennas pale pitchy brown ; apical half of 

 the second joint, apical three fourths of the third, and the 

 fourth entirely (except a narrow white ring at the base) pitchy 

 black ; extreme apex of the second and third joints white. 

 Eyes dark brown. Ocelli red. Rostrum brownish yellow, 

 apex darker. 



Thorax. — Pronotum, except the callosities, thickly and finely 

 punctured, the punctures appear slightly elongated, as if made 

 obliquely ; anterior portion pitchy black ; posterior pitchy 

 brown ; collar, lateral margins, and posterior angles brownish 

 yellow. Scutellum pitchy black, depressed in the middle and 

 very finely punctured ; sides sparingly punctured. Elytra 

 pale, almost white, finely brown-punctured : clavus with four 

 rows of brown punctures ; base with a dark brown patch ; 

 between the inner margin and the nerve two elongate pale 

 spots separated by a brownish cloud : corium near the base, 

 between the claval suture and nerve, a triangular brown patch ; 

 anterior margin beyond the middle with a broad irregular- 

 shaped brown patch, darkest exteriorly, and widening as it 

 approaches the nerve ; apex brown ; the area enclosed between 

 the bifurcation of the nerve brown, Avith a pale patch extending 

 somewhat obliquely in the direction of the inner posterior angle; 

 nerve pale. Membrane pale fuscous brown, nerves darker ; the 



