The OJonata or Dragonflies of South Africa. 355 



Ceratogomphus pictur (St'lys, 1854). 



S. Afr. Mus. : 1 (?, 1 9 , Duubrody (11 . x, 6 . iii, 1912) ; 1 9 , 

 Waterval (ii.x . 1900). Brit. Mus. :1c?, Sali.sburv (xi .1905, Mar.shall) ; 

 1 9 > S. Africa (very old specimen). Coll. K. J. Morton : 1 9 . Kiug' 

 Williamstown, Cape (4 . i . 1908, Miss Fouutaiue) ; 1 ? , Stutterheim, 

 Cape (7. i . 1908, ead). Coll. E. B. Willianisou : 2 ? , Prineetown, 

 Natal (28 . i . 12 . ii . 1909, CI. F. Leigh). Coll. Eis : 1 ? , Botchabelo, 

 1200 m. (20 . ii . 1914, H. Junod). 



Yellow at the sides of thorax with a greenish shade ; markings 

 sharply defined, lilack, dark reddish-lirown on thorax. 



(^ . No male in good condition for a description or drawing of 

 structural details was available. 



? . Laliium whitish, tips of lateral lobes blackish. Lalirum, base 

 of mandibles, genae whitish ; face and frous yellow, the following 

 markings black ; transverse line on suture of labrum and anteclypeus ; 

 narrow sinuate line on anterior margin of postclypeus ; narrow line on 

 nasofrontal suture. Dorsal surface of frons yellow, liroadly black at 

 base ; vertex black with a transversely oblong, dull yellowish spot 

 at the ocelli ; occipital jjlate yellow, narrowly lined with black at free 

 margin. This margin slightly convex with a row of numerous, robust, 

 slightly irregular black sjjines ; anterior surface slightly concave with 

 a low, transversely oljlong central tubercle. Vertex at occipital 

 suture slightly convex, transversely rugose ; more forward a shallow 

 transverse furrow and then a very slightly concave plane, ending in 

 a sharp transverse ridge over the ocelli. Thoracic pattern Plate IX, 

 fig- 7. 



Legs very robust, longer than in preceding species of Onychoyomphns 

 and Mesogomphiis, the end of third femora just reaching the joint of 

 thorax and abdomen ; femora yellow with Ijlack lines, incomplete on 

 third femora ; tibiae black with yellow external lines ; tarsi black. 



Abdominal segments 1-2 moderately extended, 3-8 comparatively 

 robust, cylindrical, 9-10 narrowed. Lateral margins of 8 with liroad 

 foliaceous dilatations ; similar dilatations only just indicated on 9. 

 Yellow, with lilack markings ; dorsolateral bands on segment 2, 

 which include a trilobate median yellow liand ; 3-7 lateral bands, 

 interrupted at anterior end of each segment, including a small yellow 

 spot at each posterior end ; narrow terminal ring ; mid-dorsal line 

 narrowed posteriorly and slightly dilated at transverse carina. On 

 segment 8 lateral bauds dilated in middle to touch each other in 

 mid-dorsal line ; foliaceous dilatations yellow ; 9 yellow, mid-dorsal 

 line and incomplete transverse baud in middle black ; 10 black with 



