mid species of PsdaphldcB and ScydmanidcB. 489 



cliannel separating tlie tubercles, and it has also a fourth 

 less distinct, impression on the vertex. Thorax smaU in 

 proportion to the after-bodj, much narrowed, the sides in 

 the middle as it were explanate, with three foveas of which 

 the middJe one is very distinct, and is connected with the 

 base of the thorax by a fine short channel. Elvtra lono-er 

 than the thorax, with a distinct sutural stria which" is 

 impressed at the base, and has at the bottom of the im- 

 pression at the extreme base a small pubescent fovea; out- 

 side this there is a deep humeral impression, at the extreme 

 base of which is a still smaller pubescent fovea. The hind 

 body is rather elongate ; the first, second and third dorsal 

 segments rather elongate and about equal to one another, 

 the fourth segment still more elongate and deflexed. The' 

 claws of the tarsi two, unequal. 



A single specimen of this very fine insect has been sent 

 me from Victoria, by Henry Edwards, Esq. It is a very 

 anomalous species ; and though no doubt it will have to 

 be placed as a genus quite distinct from Tijrus, I have 

 contented myself at present with indicating its more 

 important visible characters, without making a generic 

 name for it, the single specimen I possess not allowing of 

 an examination of its generic characters in a satisfactory 

 manner. 



Tyraphus, nov. gen. 



Corpus elongatum, depressum. Caput sat elongatum, 

 fronte canaliculato. Antennas basi approximata?, 11-arti- 

 culatas. Palpi maxillares mediocres, articulo primo hand 

 observato ; 2° sat elongato, leviter curvato, apicem versus 

 crassiore ; 3°brevi ; 4° brevi, ceteris crassiore, subtriangulari. 

 Metasternum elongatum. Abdomen sat elongatum, mar- 

 ginatum, segmento primo magno, ceteris abbreviatis. 

 Coxas posticffi distantes, hand prominulas. Tarsi un- 

 guiculo singulo. 



The species- composing this genus appear to be closely 

 allied to the species of Fselaplius ; nevertheless the struc- 

 ture of the maxillary palpi (especially as regards their 

 terminal joint) seems to me to necessitate their separation 

 as a genus. 



Tyraphus planus, n. sp. Depressus, sat clongatus, 

 antice angustatus, testaceiis, nitidus, capite prothoraceque 

 opacis ; hoc latitudine fere longiore, basin versus angiis- 



