l2 ROSENBERGIA MANDIBULARIS. 



several of the median joints of the antennae is inconspi- 

 cuously spotted with a greyish pubescence. 



Impunctate. The head very large; the eyes large, sub- 

 approximate in front; the mandibles very large and flat 

 knicked at the middle, the outer margin of the basal por- 

 tion straight and terminating in a small but distinct tooth , 

 the outer margin of the apical portion and the inner mar- 

 gin curved. A naked and glossy somewhat bottle-shaped 

 small spot between the upper lobes of the eyes. The scape 

 of the antennae not quite half as long as the 3rd joint, 

 the 3rd joint one fourth longer than the 4th , the 4th 

 — 10th slightly decreasing in length, and the apical joint, 

 which is suddenly pointed at the tip , one third longer than 

 the 10th joint. 



Between the lateral spines, which are strong and acute, 

 and obliquely directed upwards , the disk of the thorax 

 shows some sinuated transverse wrinkles , and behind these 

 a few naked very small granules more or less arranged in 

 two groups. The scutellum triangular, broadly rounded 

 and deeply emarginated at the apex. 



The elytra much attenuated towards the apex, with a 

 transversely directed acute tooth at the shoulders , and with 

 some widely spread glossy black granules on the basal 

 portion; at the base of the suture, just behind the emar- 

 gination of the scutellum , two longitudinal granules are 

 present; the elytra are truncated and provided with four 

 spines posteriorly ; moreover they show on the disk of the 

 basal half three large although faint gibbosities , just as 

 in Abatocera leonina Thorns., one conjointly on both elytra 

 and divided by the suture , the remaining two a little more 

 backwards and placed more laterally. 



The lateral posterior angles of the fifth ventral segment 

 are acutely produced. 



A single male specimen from Doreh (von Rosenberg). 



Obs. This specimen is mentioned by the late Dr. Snel- 

 len van Vollenhoven as Apriona n'^. 24 in Tijdschrift voor 



J^otes from the Leyden IMuseum, "Vol. III. 



