lievision of the Tanynhyn.hinas. 21 



3. Synaptocephalus faustiy sp. n. 



Long. G|, lat. 2| mm. 



Niger, squamulis dcnsis pallide virescentibus undique obsituj. 



Caput subconicum convexum, oculis sublatcralibus depressis, fronte 

 quam clava antennarum latiore, in medio tenuiter canalicnlata. 

 nostrum rectum parallelum, prothorace brevius, ad latera ante 

 oculos triangulariter impressum, supra planum, canaliculo tenui 

 antice abbreviate instructum ; scrobes non sub rostro continuati, 

 in ipso latere desinentes, postice minus profundi. Prothorax 

 omnino sirailis ao in S. helJeri, sed paulum latior at margine 

 basali leviter sinuato. Elytra etiam velut in S. helleri, sed 

 augulis externis baseos prominulis, squamositate dcnsiore et 

 pallidiore. 



White Nile (Richter). 



Type in the Dresden Museum. 



This species stood in Faust's collection under the MS. 

 name of S. viridis, Fst. It quite resembles S. kolbei. Est., 

 in general facies. 



4. Si/7iaptocephoJus jekeli, Fst. 

 Aosseterusjekeli, Fst. Berl. ent. Zeit. 1886, p. 101. 



N.W. Rhodesia: Leshumo (Holub), Zambesi River 

 {Dr. Bradshato). 



Type in the Dresden Museum. 



The exact position of this species is doubtful, but it appears 

 to me to have more characters in common with Synapto- 

 cephalus than with Aosseterus, and it has certainly quite the 

 distinctive facies of the former. In the following characters, 

 which distinguish tliese two genera, jekeli agrees with 

 Synaptocephalus : — 



Synaptocephalus. — Corbels of posterior tibiaj narrowly 

 cavernous; lateral margin of elytra with a small emargination 

 near base for the reception of the head of the metasternal 

 cpisternum ; the suture of this episternum only visible at the 

 extreme base ; prothorax broadest at base, much narrower at 

 apex ; elytra not constricted at base. 



Aossettrus. — Corbels of posterior tibiffi open ; elytra not 

 emarginate laterally near base ; suture of metasternal epi- 

 .Hternum complete and distinct ; prothoi'ax scarcely narrower 

 at apex than at base, its sides strongly rounded and broadest 

 at middle; elytra shallowly constricted at base. 



10. A(^8.SETERUfi, Schh. 



Aosseterus, Schh. Manl. Sec. Fhiu. Cure. p. To (1847). -Tvpa 

 A. argentatusy Ffihr. 



