124 James A. G. Rehn: On some Africau Mantidae and Phasmidae 



Gratldis angolensis n. sp. Lateral and ventral view of apex of 

 abdomen of type. (x9.) 



interocular region with practically no Inflation, occipital margin 



with a pair of median low subconical tubercles separated by a 



distinct Impression; eyes strongly flattened laterally, not at all 



prominent ; antennae nearly half again as long as the head, seven- 



teen-jointed. Prothorax with the dorso-lateral carinae slightly 



and regularly convergent cephalad, cephalic margin markedly 



arcuato-emarginate, caudal margin subtruncate, Mesothorax three 



times as long 



as the head, 



dorsum with 



the faintest 



possibletraceof 



a median ca- 



rinulation. Me- 



tathorax about 



five-sixths the 



length of the 



mesothorax, 

 similarly ca- 

 rinulate ; me- 

 dian Segment 

 very slightly 



longitudinal, 



cephalic margin regularly arcuate cephalad, Abdomen with 

 the Segments longitudinal, no distinct longitudinal carinae 

 present except the median and lateral ones 1911 which are 

 well marked except distad where the median is faint, anal 

 Segment moderately elongate, tapering, subdepressed dorsad with 

 a delicate median carina, caudal margin subarcuate with a median 

 V emargination exposing the erect ,, tapering subdigitiform supra- 

 anal plate; cerci about three-f ourths the length of the anal segment, 

 slender, tapering, compressed distad, dorsal margin subarcuate, ven- 

 tral margin straight, apex acute ; operculum f alling very slightly short 

 of the caudal margin of the anal segment, lanceolate, non-carinate 

 mesad but with decided subparallel lateral carinae; seventh ventral 

 abdominal segment with but the faintest indications of paired me- 

 dian carinae, but with decided subparallel lateral ones, distal 

 margin produced into a sharp rectangulate lobe. Cephalic limbs 

 missing. Median femora about equal in length to the pro- and 

 mesothorax; median Itibiae subequal to the mesothorax in length. 

 Caudal femora very sightly shorter than the median femora; 

 tibiae slightly shorter than the femora. 



General color ochraceous on the dorsum of the thoracic 

 Segments, becoming clay-color on the head, considerable portion 

 of the abdomen and venter; a narrow medio-longitudinal line 

 of seal brown indicated faintly on the head and distinctly though 

 frequently very finely, on the remainder of the dorsum; antennae 

 and limbs more or less washed or clouded with drab. 



