488 Mr. D. Sharp and Mr. F. Muir on the Comparative 



tata Fabr., India. Tejffius dijficilis Sternberg, Nyasa- 

 land. Ptcrostichus niger Sch., and oUongopundatus 

 Fabr., Brockenhurst. Ophomis sahulicola Panz., Southsea. 

 Laemosthenes complanatus Dej., Southsea. Bemhidium 

 higuitatuvi Fabr., Brockenhurst. 



Figs. 32-35 of Pis. XLVII and XLVIII relate to 

 Carabidae. 



Carahus violareus (PI. XLVII figs. 32 and 32a). 



Median lobe long, tubular and well cliitinised; median orifice 

 extending about one-third along ventral side, the chitin of lobe 

 thinning out into membrane of sac ; median foramen running 

 across basal end of lobe, the edge of which projects on dorsal side 

 for attachment of lateral lobes. Lateral lobes thin, especially at 

 distal end, nearly reaching to tip of median lobe. Internal sac well 

 developed, covered with short dark spines on basal half; folds of 

 membrane arovmd opening of duct (ud) complex (Fig. 32a). The 

 figure shows a depression along the dorsal side which under fluid 

 pressure becomes everted. 



Cychrns vcntricosus. 



Somewhat like C. violaceus but median lobe more curved, especi- 

 ally at base. Lateral lobes stouter and developed more perfectly, 

 with tips slender and bearing a few hairs. Internal sac short 

 (about one-third the length of median lobe) with long thread-like 

 diverticula immediately ventral of opening of duct ; surface of sac 

 studded with minute papillae. 



Nehria hrevicollis (PI. XLVII fig. 34). 



Median lobe curved cone-shape, the median orifice being situated 

 at the small distal end, the median foramen at the large basal end. 

 Lateral lobes attached to dorsal edge of median foramen, left lobe 

 broad, flat, reaching to tip of median lobe, right lobe broad and 

 flat, reaching about two-thirds along median lobe. Internal sac 

 small and undifferentiated. 



Mctrius contractus 



Median lobe short, deep, flattened ; the distal end produced into 

 a curved blunt spine ; median orifice narrow, running along one- 

 fourth of ventral side of lobe, near distal end ; median foramen on 

 basal end somewhat dorsal. Left lateral lobe narrow, spatulate at 

 end, with fringe of long hairs along dorsal side, a little longer than 

 median lobe ; right lobe shorter, broader and produced to point, 

 without hairs along edge. Internal sac large and complex. 



