WEST AFRICAN' HISTERIDAE 



403 



F*achycraei*us» front sp. n. 



SubcylindricuSf niger, nitidus; fronte concava bistriata, 

 stria postice in medio retrorsum angulata; pronoto stria 

 marginali haud interrupta ; elytris striis 1-3 suturalique 

 integris, 4 bast abbreviata, 5 dimidiata; prosterno striis 

 saepe utrinque conjunctis ; mesosier?to stria marginali in- 

 tegra; tibiis aìiticis o-dentatis. - L. 3^/^ - 3^4 ^^^*^^- 



Subcylindrical, l)lack and shining; the head concave anteriorly 

 with striae similar to those of P. nigrans ; the thorax, the mar- 

 ginal stria is complete, surface somewhat coarsely and densely 

 punctured laterally and near the anterior angles, disc and scutellar 

 region more finely and sparingly punctured, close to the anterior 

 angle there is a small shallow^ fovea; the elytra outer Immoral 

 stria is complete, inner is wanting, 1-3 dorsal and suturai com- 

 plete, the suturai turns a little outwards at the base, 4 is shor- 

 tened at the base, o dimidiate; the pygidia are rather coarsely 

 and closely punctured but the pygidium is narrowly smooth at 

 its apex ; the prosternum, the striae are fine and alw^ays connected 

 anteriorly and sometimes sinuously joined at the base; the me- 

 sosternum, the marginal stria is complete but rather fine; the 

 anterior tibiae are o-dentate. 



This species is a little larger than P. striaticeps Lew\ but it 

 differs by the mesosternal stria being clearly complete and other 

 characters. 



Hab. Basilé, Island of Fernando Po, Gulf of Guinea. 



Note. There are now^ known four species of Pachycraerics 

 which have similar frontal striae , vizt. P. ritsemae Mars, and 

 striaticeps, frontalis and nigrans Lew. These together form a 

 distinct group of the genus. I have a type example of P. ritsemae 

 Mars, but Marseul did not clearly describe the frontal stria. These 

 four species also resemble each other in their dorsal striae: they 

 have no inner humeral stria and the suturai stria bends outwards 

 behind the scutellum. 



Ei>itoxu>s5 liaere^ sp. n. 



Suborbicularis, convexus, niger, nitidus; fronte punctulata, 

 stria semicirculari integra; pronoto lateribus distincte pun- 



