212 [September, 



8. Tegulse and edge of pronotum quite concolorcms, yellowish. Apart from 



pictura albida its coloration is generally dark, the abdomen with less 

 red than in the species following ? inornata, Cam. 



— Tegulse at least darker than the edge of the pronotum. Abdomen mostly 



red. Head as viewed from above " narrowed behind the eyes "... 



?palmata, Geoffr. (sec. Enslin). 



Note. — Dr. Enslin reckons palmata (= campestris, Knw., nee L. !) among 

 the species with black tegulse, but in my specimens, many of which were named 

 by Konow, I can find none with really black tegulse, and I doubt whether they 

 are ever so in this country, though Cameron says of " scutellaris, Pz." (by which 

 name, wrongly in my opinion, he calls this species) , " tegulse pale, rarely black." 



[What Panzer figures as " scutellaris " appears to me to be a much larger 

 and more striking species, viz., stigma, F. I have never seen any British 

 Tenthredopsis which I could identify with Panzer's figure.] 



9. " Vertex divided by a fine line. 8th dorsal plate of abdomen not 



membranous in the middle." (I quote these characters from Konow 

 and Enslin, but in all my specimens named thornleyi by Konow the 

 middle of the 8th dorsal plate is most distinctly membranous !) Thorax 

 black entirely except the scutellum thornleyi, Knw. (det. ipse!). 



— " Vertex divided by a deep furrow. 8th dorsal place paler in the middle, 



almost membranous. Edge of pronotum often white." (Enslin.)... 



spreta, Lep. (det. Knw. !) 



Note. — I am quite unable myself to separate on these, or indeed on any 

 characters, the specimens named for me by Konow some as spreta, some as 

 thornleyi ! 



The 6* 6" of elcgans and gibberosa are placed by Dr. Enslin among forms 

 with dark tegulse. I have no British specimens of either, and what Konow 

 sent me as " gibberosa $ " has the tegulee white ! The best distinction between 

 gibberosa and palmata seems to be the outline of the head as viewed from above 

 (subquadrate in the former, narrowed behind the eyes in the latter). 



Another form said by Dr. Enslin to have black tegulse is fenestrata, Konow. 

 I have a Scotch 3 from Mr. Dalgleish, which was named by Konow "fenestrata," 

 but its tegulse are certainly pale, and I cannot at present distinguish it from 

 fiavomaculata, Cam. 



Except excisa, coquebertii, and litterata, I cannot myself name any British 

 Tenthredopsis 3 3 with confidence ; and I only hope that I am not making 

 confusion worse confounded by attempting to tabulate at all our other species ! 



(To be continued). 



