216 Dr. Guy A. K. Marshall on 



Elytra subelliptical, constricted at the base, the basal margin doc]-]y 

 and jointly sinuate, the basal angles projecting outwards and for- 

 wards in the form of a blunt tubercle, the sides gently rounded 

 behind this prominence and without any humeral angle, the apices 

 jointly produced and each terminating in a short sharp process; 

 the first four rows of punctures rather large and shallow, those of 

 the first two rows more or less confluent transversely in pairs, 

 those of the outer rows much smaller and rather indistinct on the 

 posterior half; the suture rather sharply elevated on the declivitj', 

 which has a slope of 70°, interval 3 costate and bare, and a lateral 

 costa running rather obliquely downwards from the basal angle 

 almost to the level of the hind coxa; no setae on the disk and only 

 a few recumbent ones about the ajicx. Legs with mingled grey and 

 green scales and short raised pale setae; the tibiae minutely denti- 

 culate internally, the hind pair not mucronate ; the second joint of 

 the front tarsi a little longer than broad. 

 Length, 12 mm. ; breadth, 4 mm. 



Colombia : San Lorenzo Mt., 8500 ft., Magdalena, 

 28. vii. 1920 {Frwnl R. Mason). 



Described from a single female kindly given to me by 

 Mr. Mason, who found it on an epiphyte in dense forest. 



Distinguished from all the known species of the genus by 

 the projecting basal angles of the elytra and the flat inter- 

 antennal space on the rostrum. Otherwise in general 

 facies very similar to E. quadriviUatus Kirsch, but in that 

 species the rostrum widens gradually to the apex and bears 

 a narrow median furrow; the elytra have the apical 

 processes much longer and blunt, and about the middle 

 there is a low transverse costa between intervals 3 and 7. 



Exorides pedunculatus, sp. n. (Plate IV, fig. 5.) 



5. Integument black, with the following areas covered with blue- 

 green scaling : the sides of the rostrum, head, prothorax, sternum 

 and venter, the femora, and the elytra between striae 3 and 9; a 

 fair number of similar scales on the ridges of the pronotum and on 

 the inner face of the tibiae, and a few on the sutural area of the 

 elytra; the inner edge of the green stripe on each ch'tron is trian- 

 gularly indented a little before the middle owing to the presence 

 there of a rudimentary transverse ridge. 



Head coriaceous, transversely flattened between the eyes and 

 with a round median fovea; the eye-margins not impressed. 

 Rostrum, without the mandibles, as long as its basal width and 

 slightly widened at the apex; the interantennal area shallowly 



