50 S.TÖSTEDTS KILIMAND.IARO-MEBU EXrKDITION. 15; 4. 



Colpoceplialum graiKliceps Piaget. 

 A male and a female from Himantofus hiviatifopus. Tlie type specimeiis were 

 taken by Piaget from Hcemaiopus ostralegus. 

 Kilimandjaro-Meru: Natron Lakes. 



(lolpocephalum eucareniun Nitzsch. 

 Two feniales from Pelecanus roseus. Nttzsch's type was taken from PeJfcaniis 

 onocrotahis. 



Kilimandjaro-Meru : Natron Lakes. 



t'olitocephaluin j^racilo Piaget. 

 Male and female from Platalea alba. Type specimen takon from /'. Iriirmodia. 

 Kiliviandjarn-Me.rn: Natron Lakes. 



ColpoceiihalHni semicinctum Rudow. 

 Numerous mal es and females from Corvm scapnlatns. 

 Kilimandjarn : LTseri. 



('oli»ocei»lialuiii suluvqnalo Nitzsch. 

 Males and females from CorvuUur albicolli-'i. Type specimens are from Corvvs 

 corax and C. frugilegus. 



Kilimandjaro : Kibonoto. 



("ol]»()C(^i»haluHi si«i'stp<Ui n. sp. 

 (PI. 7, fig. 7.) 



Several females from Gorims scapulatus and CorvuUur albicollis. An extraordi- 

 nary form of Colpocephalum of tlie general type of Carriker's curious and abberant 

 C. extraneum , taken from a night-jar, Nyctidromus albicollis, Costa Rica. These two 

 species are strangely widely separated both in host relation and geographically and 

 yet they agree so closely in the characteristic, namely, the extraordinary extension 

 of the metathoracic dorsum and its curious shape, that separates them from all other 

 species of the genus that they should probably be set apart in a distinct genus. For 

 the present, however, we may let them stand in Colpocephalum. The African spe- 

 cimens from the crows differ from the singie Costa Rican female from the night-jar 

 in the presence of pustulations on the temples, an all brown metathorax, and the 

 median abdominal blotches; the metathorax is also truncate or even emarginate on 

 the abdomen. 



Female, length 2.25 m.m., width 0,8 m.m., large for, Colpocephalum, strongly 

 marked and characterized by the great posterior extension of the dorsum of the 

 metathorax, with its deep angular median emargination. Head, length 0.63 mm., 

 width 0.78 m.m; temples strongly projecting and rounded with four long pustulated 

 liairs and other shorter ones; well marked fringe of short curved hairs on lateral 

 margin behind eye; head pale translucent brown with strong large triangulär ocular 

 blotches and narrow black temporal and occipital border. Prothorax hexagonal with 

 pioduced lateral angles furnished with Single spine. Mesothorax distinct from meta- 



