TENTHEEDOPSIS NASSATA. 157 



eyes. It is not T. nassata, L. sec. Konow, which 

 has the spurs reaching to the middle of the meta- 

 tarsus, this being not the case with inomata. In that 

 species there is no furrow on the vertex in the middle, 

 and the antennae are thicker towards the middle ; they 

 are a little shorter than the abdomen. From dor sails 

 it may be known by the darker colour, wanting the 

 whitish-yellow and shorter antennse. 



Tentheedopsis nassata (Vol. I, p. 117). 



This is an exceedingly puzzling form. Thomson, 

 as will have been seen, refers nassata, L., to cordata 

 (described from the $ ), while Konow refers it to the 

 yellowish species, but not that which I have described. 

 That he treats as a new species, which he names T. 

 Raddatzi (D. B. Z., xxviii, p. 334). Neither among 

 my Continental nor British species can I find a speci- 

 men which I can identify as nassata, Knw. As regards 

 Raddatzi, there can, I think, be no doubt at all that 

 the ? is exceedingly variable, and I should be inclined 

 to place T. albomaculata, Saundersi, dorsivittata as 

 forms of it. Furthermore, Konow (1. c, p. 81) de- 

 scribes a var. indocilis, "nigra, abdominis medio rufo, 

 ? et S , pectus et mesonoti lobus medius nigris ; 

 lobis lateralibus interdum fusco-plagiatis," of which 

 he says that it may belong to a distinct species ; 

 but inasmuch as he could not find any distinctive 

 characters taken from the structure, he places them 

 as varieties of Raddatzi. The same remark applies to T. 

 flavomaculata, and T. picticeps may also be an extreme 

 form of Raddatzi. These two forms certainly agree 

 with Raddatzi in having the tegulse pale, a point in 

 which they differ from our other black and red species. 



The c? I have described is the right male of Rad- 

 datzi, but I may point out that in most examples there 

 is a V-shaped yellow mark on the mesonotum. This is 

 probably the $ Thomson has described under sordida. 



