and Species of Gallerucinge. 109 



Head longer than broad, wedge-shaped, front impressed with 

 a deep fovea, which extends downwards between the encarpse, 

 the latter thickened, trigonate; carina well defined; antennas 

 nearly equal to the body in length, filiform, moderately robust, 

 the second joint short, the third nearly twice its length. 

 Thorax twice as broad as long ; sides straight and very slightly 

 diverging from the base to beyond the middle, thence rounded 

 and converging to the apex ; disk impressed on either side 

 with a deep fovea, finely punctured, in some specimens the 

 punctures only visible under a strong lens. Elytra much 

 broader than the thorax, dehiscent at the extreme apex, con- 

 vex, rather closely punctured ; each elytron with a narrow 

 humeral rufo-fulvous patch, which often extends along the 

 basal margin nearly to the suture. 



Agelastica 7nelanocephala. 



A. elongato-ovata, postice vix ampliata, rufo-fulva, nitida, capito, 

 geuibus, tibiis tarsisque uigris ; tliorace fere impunctato, sat 

 profunde bifoveolato ; elytris sat crebre punctatis, metallico- 

 caeruleis, viridi tiuctis. 



Long. 4 fin. 



Hob. Rockhampton, Queensland ; Murray Island, North 

 Australia. 



Head wedge-shaped, vertex convex, shining, im punctate ; 

 encarpse thickened, pyriform, contiguous ; antenna? nearly 

 equal to the body in length in the male, rather shorter in 

 the female, moderately robust, the second joint short, the 

 third obconic, nearly twice the length of the second. Thorax 

 nearly twice as broad as long ; sides straight and parallel, 

 converging at the apex ; disk impressed on either side with a 

 deep, transversely oblong fovea. Elytra broader than the 

 thorax, very slightly dilated behind the middle, their apices 

 in the male subacutely rounded, more obtusely rounded in the 

 other sex ; above convex, closely but rather more finely punc- 

 tured than A. humeralis. 



This insect, in addition to the differences in coloration, may 

 be at once separated from the preceding species by its narrower 

 and more elongate form. With the exception of the bifoveo- 

 late thorax, the two species described above agree in all 

 structural characters with Agelastica, in which genus I have 

 accordingly placed them. Dr. Chapuis, in his diagnosis of 

 the genus, gives the apex of the anterior tibia as unarmed ; in 

 all the specimens I have examined, both of our European 

 species alni and of the nearly allied Japanese ccerulea } I 

 have found the apices of all the tibia 1 armed with an acute 

 spine. 



