Oh new Platypodlt-lai and Scolytidic. 137 



IX. — Tlitlierto umhscr'ihoA Platypodidio ond Scolytidfi^ from 

 Porliujuese t'a.st Africa. By Lt.-Cul. WlNN SamtsON, 

 F.E.S. 



A NUMBER of spocinieiis from Portu^ijuese East Africa, 

 collected by Mv. C B. Huideiibeifj, iiaving been handed to 

 me by tlie Director of llie Imperial Bureau o£ Entomology 

 for determination, the following appear to be new species : — 



Cro3Sotursus Jiardenher^i, sp. n. 



(^ . Head and prothorax dark brown ; elytra dirty yellow, 

 darker towards the apex. Front flat, shagreened surface 

 lightly punctured on the upper half and more deeply on the 

 lower, with a slight median longitudinal depression and 

 obscure stritc below the eyes, the latter being sharply de- 

 pressed on their inner sides; the whole surface sparsely hairy 

 and with a row of yellow hair above the mouth; the vertex 

 has a clearly defined edge with a strong central carina, the 

 surface on each side being dull and granulate, becoming 

 polished and somewhat swollen, with irregularly placed and 

 various-sized umbilical punctures towards and above the eyes. 

 Prothora.v oblong, anteriorly dull, the rest of the surface 

 polished, with scattered umbilical markings and small punc- 

 ture?, especially towards the posterior edge and on each side 

 of the central longitudinal groove, which extends from close 

 to the base tor one-fouith the length of the prothorax, pre- 

 ceded by a faintly marked ridge reaching nearly to the anterior 

 margin. Elytra (fig. a) the same breadth as and one-half 

 longer than the thorax, striate-punctate, the first stria rather 

 deeply and closely punctured; the interstices faintly uniseriatc- 

 punctate, the third not broadened basally ; the first, second, 

 and third coalesce apically, forming an oblique truncate edge, 

 the outer acute angle extending beyond the remaining inter- 

 stices, the fourth narrowed and terminating before reaching 

 the apex ; the fifth is obliquely truncate, broadened apically, 

 and nearly the same length as the sutural angle ; the sixth is 

 slightly shorter, narrowed, and apically obtuse ; the seventh 

 transversely truncate and equal in length to the sixth ; the 

 eighth shorter than the seventh and obtusely rounded; the ninth 

 is the same length as the seventh and twice as broad as the 

 eighth, and obliquely truncate, theouter angle beingveryacute. 

 Abdomen (fig. h) with the first and second visible segments 

 centrally depressed, the excavation in the second having the 

 sides slightly divergent as far as the inner posterior angles, 

 and then rounded and fringed with hair, becoming incurved 



