Vol. XXX] ENTOMOLOGICAL NEWS IQ9 



short, sharp spines. Prosternum narrow between the coxae, 

 declivous posteriorly. Anterior two-thirds of inesosternum 

 oblique, posterior third flat. Scutellum very broad, rounded 

 behind. Epimera of metathorax produced over the angles of 

 the first ventral segment. Intercoxal process of first ventral 

 segment rounded. Anterior coxae globular, prominent. An- 

 terior tibiae not grooved. Tibial spurs large. Hind tarsi com- 

 pressed. Apices of elytra rounded. 



Genotype, Megachcnma melon osticum n. sp. 



Differs from Cyllene and Trichoxys by having the proster- 

 num narrow between the coxae, declivous posteriorly rather 

 than vertical, in the subserrate antennae, and the rounded 

 apices of the elytra. Differs from Calloides in the subserrate 

 antennae and the prosternum narrow between the coxae rather 

 than wide. Differs from Arhopalus in the subserrate antennae 

 and the oblique mesosternum. Differs from Glycobius in the 

 form of the antennae which is less serrate and less compressed 

 than in that genus ; also the prosternum is narrow between the 

 coxae rather than broad as it is in Glycobius, and the elytral 

 apices are rounded rather than truncate. 



Megacheuma melanosticum n. sp. (Text figs. 1-3). 



9 . Length 16 mm. Body subparallel, elongate, thickly clothed with 

 depressed, lemon-yellow pubescence. Head inserted in the thorax; 

 covered with depressed, lemon-yellow pubescence and very sparse, 

 erect hairs; frons flat, impunctate ; a median line running from frons 

 to occiput ; vertex with very sparse, moderate, shallow punctures ; 

 occipital region bare of pubescence, shiny, moderately and irregularly 

 punctate (some of the punctures confluent, others widely separated). 



Antennae reddish testaceous, subserrate, joints three to six produced 

 above at the apex into short, sharp spines; first four joints of antennae 

 covered with depressed, cinereous pubescence; remaining joints opaque 

 and puberulent ; second joint of antennae about two-fifths the length 

 of the third, which is equal in length to the fourth ; apical joint of 

 antennae one and three-fifths times the length of the penultimate 

 joint, suddenly constricted a little beyond the middle and tipped with 

 very fine, golden pubescence. 



Prothorax a little wider than long, sides rather strongly arcuate, 

 very narrowly constricted at the base ; covered with cinereous pubes- 

 cence, except the lemon-yellow pubescence on the sternum and sides, 



