928 MR. JACOBY ON NEW PHYTOPHAGOUS COLEOPTERA. [DeC. 1, 



LiCYLLUS, gen. nov. (Halticin^). 



Body ovate ; eyes entire ; antennae filiform, the second joint 

 short. Thorax transverse, narrow, the posterior angles tubercu- 

 liform, oblique ; surface transversely depressed at the middle of the 

 disk. Scutellum large, the apex rounded. Elytra with a deep 

 depression below the base, irregularly punctured, their epipleurae 

 disappearing below the shoulders. Posterior femora strongly in- 

 crassate, their tibiae simple and unarmed, the first joint of the pos- 

 terior tarsi as long as the three following joints together. Claws 

 appendiculate. Prosternum invisible between the coxae ; nieso- 

 sternum narrowly transverse. Anterior coxal cavities open. 



The unarmed apices of all the tibiae, the transversely impressed 

 thorax, and the absence of the elytral epipleurae below the middle, 

 in connection with the deeply depressed space of the elytra below 

 the base, form a number of characters which distinguish Licyllus 

 from any other genus amongst the numerous family of HalticinjB. 

 A single species from Australia is known to me. 



Licyllus splendidus, sp. uov. 



Piceous. Basal joints of the antennae, the thorax, anterior legs, 

 and posterior tibiae testaceous ; elytra metallic green, two large spots 

 at the base, and a semicircular mark below the middle of each 

 elytron bright reddish cupreous. 



Length 2 lines. 



Head piceous, with a few fine punctures ; the frontal tubercles 

 strongly raised, bounded behind by a rather deep groove ; the carina 

 very indistinct ; lower part of face testaceous. Anteuuae more than 

 half the length of the body, obscure fuscous, the four or five lower 

 joints testaceous, the third joint more than twice as long as the 

 second and longer than the fourth. Thorax three times as broad as 

 long, the sides rounded at the middle, the angles, especially the 

 posterior ones, produced in a tubercle, obhquely shaped behind the 

 latter ; surface impunctate, with a rather deep transverse groove 

 across the disk, not extending to the sides. Scutellum broad, black. 

 Elytra widened below the middle, transversely depressed below the 

 base, the latter raised ; surface closely and finely punctured, the 

 punctures more strongly impressed anteriorly than behind the 

 middle, metallic green ; an elongate spot placed at the shoulders, 

 which are prominent, a round spot near the scutellum, and a larfje 

 semicircular ring, occupying nearly the entire latter half of each 

 elytron, briUiant reddish cupreous ; posterior femora piceous, the 

 rest of the legs testaceous. 



Hub. Australia. (Two specimens are contained in my collection.) 



DiACANTHA OBERTHURI, Sp. nOV. 



Fulvous ; the sides of the breast black ; elytra distinctly punc- 

 tured, their anterior half and a triangular spot near the apices black. 



Length 3 Hues. 



Head impunctate, transversely grooved behind the frontal tuber- 

 cles ; antennae rather short and stout, fulvous, the third joint 

 slightly longer than the second ; sides of the thorax subangulate 



