( 170) 



Abdomen without sharply marked black spots ; 

 frons yellowish buff; elytra with irregular 

 ante;ij)ical transverse baud ; i)rocess of meso- 



sternuui short, broad P. laetus (1858) 



Thoms. I.e. ii. p. 173. t. 7. f. 2 (Gabun). 

 //. A line from head across prothoracical sjiiue to 

 suture of elytra white ; a white curved line on 

 elytra from outer margin to apex, interrupted 

 before end. Prosterual process (cj) pointed, 

 short, longitudinally grooved on hinder surface; 

 mesosternal one horizontal, compressed, much 



projecting forward P. thomsoni (1869) 



Pascoe, Ann. Mag. N. H. (4). iv. p. 209 (Gabun). 

 A white line on thorax and elytra as before, but 

 elytra with transverse line at apical fourth ; 

 antenna ringed with white, segments 8 to 11 

 (except ti]) of last) white ; prosterual process 

 uui-tuberculate (J) ; mesosternal one projecting, 



conical P . taeniatm {\%'i\) 



Jord., Nov. ZooL. i. p. 2U9. t. 10. f. 5 (Kuilu ; Ogowe). 

 Thorax with white belt at apex and at base, suture of 

 elytra white in basal half, two oblique transverse 

 lines in apical half, the first beginning laterally 

 before middle, the second often abbreviated ; two 

 white rings on antenna occupying the apex and 

 base respectively of the third and fourth and 

 of the fifth and sixth segments. Prosterual 

 process unituberculate in J', bituberculatein ? ; 

 mesosternal process conical in c?, broad and 



anteriorly concave in ¥ .... P. Uyatus (1894) id.. 



I.e. p. 200. t. 10. f. 6 (Kuilu). 



Upperside irregularly marmorated with greyish blue. 



Process of prosternum transversely carini- 



form, that of mesosternum projecting veutrad, 



conical. Tip of third and basal two-thirds of 



fourth autennal segment white . . . P . voLuptuosus {\%bl) 



Thoms., Arcli. Ent. i. p. 30. t. 6. f. 6 (" Natal " ex errore ?) 

 We have this species from Benito, French Congo. 

 I believe P. incubus (1858) Thoms., I.e. ii. p. 173 to be based on 

 specimens of the same species. 



76. Nyctopais tripuncta spec. uov. 



? . Structurally the same as imjsteriosiis. Frons and cheek bluish white. 

 Autennal segments 3, 4, 8 and in basal half, 10 almost entirely, and the whole of 1 1 

 bluish white, 6 and 7 with small bluish white basal spots. Prothorax with broad 

 bluish white lateral vitta, which includes the pointed side-spiue, the tip of which is 

 black ; a basal and an apical transverse bluish white belt above, and on disc three 

 spots of the same colour, one mesial before middle, the others discal, standing farther 



