APOGONIA TUBEHCULIVF.NTRIS. 131 



NOTE XI. 



APOGONIA TÜBERCULIVENTRIS, N. SP. 

 FROM NORTH BORNEO 



DESCRIBED BY 



C. RITSEMA Cz. 



A species of moderate size (measuring 10 — 11 mm. iu 

 length) which is easily recognizable by the two approxi- 

 mate tubercles on the middle of the first ventral segment. 



Its colour passes from ferruginous brown (immature spe- 

 cimens) to pitchy black with purple and green tinges on 

 the upper side; the palpi and antennae are ferruginous. 

 The sides of the sterna are covered with very fine and 

 short whitish setae. 



The clypeus is obliquely narrowed in straight lines 

 laterally, gently emarginate in front, the front angles 

 broadly rounded , the front margin almost inconspicuously 

 reflexed ; its surface rather densely covered with very distinct 

 punctures and separated from the face by a suture. The face 

 itself is remotely covered with rather indistinct punctures. 



The prothorax is transverse, slightly narrowed towards 

 the front margin in regularly curved lines when viewed 

 from above; the sides, when viewed laterally, are strongly 

 curved behind the middle ; the anterior angles are acute 

 and distinctly prominent, the posterior ones very obtuse; 

 the middle of the base slightly projects so as to form , 

 opposite the scutellum , a rounded lobe. The surface is 

 remotely covered with fine but distinct punctures and pro- 

 vided laterally with a shallow, rather indistinct impression. 



Notes from the Leyden Museum, "Vol. XIX. 



