140 TRITOMURUS. 



Macrotoma nigra, Gei-vais, Ins. Apteres, vol. iii. 

 ■ — ferruffinosa, „ „ „ 



— lepida, „ „ „ „ 

 Tomocerus celer, Nicolet. Mem. Soc. Ent. France, 1847. 



— lepida, „ „ „ „ 



Bourlet's description is as follows : 



" Meme longeur que la precedente {T. ])liimhcus) pour 

 le corps et les antennes ; corps couvert d'dcailles 

 noires, offrant a la vue simple un leger reflet argente. 



" Corps depouille de ses ecailles presentant une 

 couleur d'un jaune de cire. Bord anterieur du thorax 

 garni d'une frange de polls noirs et courts ; antennes 

 grises, ou d'un gris fauve ; pattes d'un brun verdatre, 

 tarses bruns, ventre jaunatre. Cette espece, ainsi que 

 la precedente, se trouve sous les pierres et le vieux 

 bois." 



This species is narrower than T. plicmbeus, and the 

 body, when deprived of scales, is yellow instead of 

 grey. It agrees so closely in other points with T. 

 27lumbeus that I long hesitated whether it should be 

 regarded as a distinct species. Bourlet also seems to 

 have felt some doubt, at least, after founding the 

 species in his 1839 memoir, he omitted it in the later 

 one. 



It is found in the same localities as T.ijlumheus, and 

 is common throughout the year. 



M. Gervais described his M. lepida, as follows : — 

 " Jaune nankin, varie. Long 2 lignes. Cette belle 

 espece n'est pas rare dans les parties peu'ombragees de 

 la foret de Saint Germain, prds Paris." 



I agree with Nicolet in regarding this supposed 

 species as identical mth Bourlet's M. nigra. 



Tritomurus, Frauenfeld, Yerh. d. Zool. Bot. Yer. 

 Wien, 1854. 



Body cylindrical, broadest in the middle, scaly, with 

 eight dissimilar segments. The first rounded in front, 

 longer than any of the three following, the second a 



