156 [July, 



Puncticollis, Thorns. — This was treated by Kouow as a variety of 

 gonager; but I find that its ? has an entirely different saw, more 

 resembling that of liogaster, so that I cannot here follow him. (Dr. 

 Enslin, to whom I have sent photographs of the saws, agrees in this) . 



Sanguinicollis, Kl. — The typical ? of this species (with red on the 

 thorax) is recorded by Mr. Cameron as British on the strength of a 

 single specimen (now at South Kensington) from Shuckard's Collec- 

 tion, without any definite locality. It may occur in this country, but 

 more precise evidence is desirable. 



But an entirely black form of (according to Konow) the same 

 insect is notimcommon with us. This is described, and its " saw " well 

 figured, by Zaddach imder the name ravtis (see below), and Konow 

 accordingly called it saugumicoUis var. ravus, by which name it is 

 generally known on the Continent. It was, however, previously 

 described by Stephens as fumosus, whose type, bearing his label, I 

 have examined in the Collection at South Kensington, and it must 

 therefore, if it is really a form of sanguinicollis, be called var. fumosus, 

 Steph., nee. Zadd. (= ravus, Zadd.). 



Having carefidly examined and photographed the " saws " of 

 typical sarigninicoUis and vnr. fumosus, I find them practically iden- 

 tical and distinct, both in their shape as a whole and in the details of 

 their denticulation, from those of any other species, so that I think 

 Konow was probably right in uniting the two forms specifically. I 

 should say, however, that Dr. Enslin has some doubt on the point, and 

 would prefer to wait for fui-ther evidence before accepting the identi- 

 fication. 



Hsematodes, Schr. — This appears to be a rather common and 

 widely distributed British insect. It is one of our largest and finest 

 species. 



Gibhosus, Ktg.—See Ent. Mo. Mag., Jime, 1898, p. 127. 



There is an extraordinary similarity between the " saw " of this 

 species and several others now considered distinct from it and one 

 another, viz., megajderus, ohlongus, fumosus, Zadd., nee. Stephens, and 

 the non-British form thoracicus, Kl. (with red mesonotum). I expect 

 that some at least of these will ultimately be sunk as varieties of a 

 single species, but at present I confine myself to the expression of this 

 opinion. The saws in question are distinguishable from those of all 

 other species at a glance, and, so far as I can see, quite undistinguish- 

 able from one another ! 



Nitens, Zadd. — Dr. Enslin has shown that a form which I have 



