154 JOURNAL, BOMBAY NATURAL HISTORY SOCIETY, 1S92. 



Cryjjtodesmus greeni, sp. n. 

 (PI. ii, fig. 3.) 



Colour (in alcohol), brown above; antennsB and labrum testaceous, 

 legs ocbraceous. 



Head bairy, witb a sballow vertical sulcus, labrum defined above 

 by a transverse furrow, some wb at produced as in the preceding 

 species, witb rounded angles and widely excised border. Antennce 

 sbort and tbick, clavate, the segments increasing in size to tbe sixth, 

 the seventh about as large as the fifth. 



Bodij hairy, convex above, the keels directed downwards and 

 outwards, not continuing the slope of the back but inclined to it at 

 an obtuse angle ; 1st tergite much wider than the head and narrower 

 than the 2nd, convex in the middle, the margins of its keels sloping 

 towards each other and meeting in a rounded angle of about 50°, 

 covered with close-set rounded tubercles; the rest of the tergites 

 adorned with many tubercles arranged in four transverse rows, these 

 tubercles becoming nearly obsolete on the keels ; anterior border of 

 the keels unarmed, lightly convex and defined by a sulcus, posterior 

 border straight and armed with a series of close- set quadrate 

 teeth, the anterior angle rounded, the posterior angle squared, the 

 lateral margin quadri-dentate ; keels of 1 9th extending nearly as far 

 as the apex of the anal which is pointed ; under surface of the keels 

 sulcate towards their margins, the sulci running inwards from the 

 margins. Sterna narrow and deeply sulcate ; anal sternite tri-tnber- 

 culate. 



Legs hairy. 



6 . Copulatory forceps very small, the distal segments simple, 

 closely in contact, hooked at the apex. 



Length about 9 mm. 



A single male specimen from Punduloya (Mr. Green). 



This may prove to be the 6 of the preceding species. But there 

 is no evidence at present to show that the differences between the two 

 are of a sexual nature. The keels are very different in shape. In 

 Ct\ ceylonicus they are much narrower, the posterior angle is produced, 

 and the posterior border concave. Whereas in Cr. greeni they are 

 more produced, the posterior border is straight, and the posterior 

 angle squared. 



