416 Mr. J. S, Balj on new Genera 



Genus Megalognatha. 



Cor2)us elongatum, parallelum. Caput exsertum, infra oculos elonga- 

 tum, plus minusve porrectum ; antennis filiformibus, in J interdum 

 incrassatis, articulis intermediis diiFormibus ; oculis ovalibus, in- 

 tegris ; encarpis distinctis, contiguis ; carina cuneiformi. Thorax 

 subquadratus, lateribus fere rectis. Scutellum t.rigonatum. Ehj- 

 tra thorace pauUo latiora, parallela, limbo inflexo pone medium 

 obsolete. Pedes gracUes, simplices ; coxis anticis contiguis ; tihiis 

 apice muticis, dorso carinatis ; tarsoriim posticorum articulo 

 basali sequentibus tribus longitudine fere tequali ; unguiculis 

 appendiculatis. Prosternum angustissimum, acetabulis anticis 

 apertis. Abdomen in foemina gravida infiatum. 



Type Megalognatha elegans. 



The above genus is separated from Malacosoma, to which 

 genus some of the species bear resemblance, by the strongly 

 exserted head, the unarmed apices of the tibia3, and by the 

 shorter inflexed limb of the elytra. 



Megalognatha elegans. 



M. elongata, convexa, flavo-fulva, nitida, capita, antennis (basi 

 exceptis) nigris ; thorace sat fortiter punctato ; elytris convexis, 

 a basi apicem versus graduatim elevatis, viridi-aeneis, granulosis, 

 transversim rugulosis, crebre punctatis. 



Long. 2| lin. 



Hah. Graham's Town, South Africa. 



Head porrect, elongate ; vertex granulose, sparingly punc- 

 tured ; front impressed just above the encarpae with a deep 

 fovea; encarpaj transverse, subpyriform, contiguous; lower 

 face strongly produced, nigro-piceous ; clypeus triangular, 

 remotely punctured, its median line elevated into an ill-defined 

 longitudinal ridge ; antennas equal to the body in length in 

 the (J , rather shorter in the ? , filiform, the second joint 

 short, the third equal in length to the first ; the three or four 

 lower joints fulvous, the rest black. Thorax transverse- 

 quadrate ; the sides straight and slightly diverging from 

 the base to beyond the middle, thence obliquely converging 

 to the apex ; upper surface deeply punctured, the punctures 

 rather crowded and often confluent on the hinder disk, more 

 distant in front ; the hinder disk faintly excavated, the ante- 

 rior with a shallow, ill-defined fovea. Scutellum trigonate. 

 Elytra broader than the thorax, narrowly oblong, convex, 

 faintly depressed below the basilar space, granulose, trans- 

 versely wrinkled, coarsely punctured. 



Megalognatha cavicolUs. 

 M. elongata, nigra, nitida, abdomine fulvo ; thorace rufo-fulvo, 



