1903.] 243 



When, by examination of the claws, the tibije, and the intercostal 

 venation, a specimen has been referred for certain to one of the above 

 genera, its further identification will generally be pretty easy. 



1. Of Neurotoma we seem to liave only one British species, viz.,Jlaviveiitri.i, Ketz. 

 Ill this the liead and tliorax are black ; the abdomen nearly entirely pale red ; the 

 face, the basal Joints and under-side of the antennie, the tegulse, and the legs yellow. 

 The wings are clear at base and apex, but crossed by a dusky stripe below the stigma. 

 The 3rd antennal joint is about as long as the three next taken together. 



The species is known to me from Sussex and the New Forest. 



2. Of Lt/da we have only two species, which may be easily distinguished thus — 

 Abdomen dark blue above and beneath ; head dark blue in S , red in ? ; wings very 



dusky ; 3rd antennal joint as long as the three next taken together... 



erythrocephala, L. 



Abdomen black above, marked beneath with red and yellow ; head in both sexes 

 black ; wings nearly clear (yellowish) ; 3rd antennal joint not much longer 



than the two next taken together stellata, Chr. 



All the specimens of both these whose localities I know/or certain are Scotch, 



but they might probably be found wherever pine woods occur. Stephens records 



erythrocephala from " the West of England." 



3. PamphHius is better represented with us. I possess undoubtedly British 

 examples of six species ; and Mr. Cameron's Monograph records three others, viz., 

 betulae, \j., stramineipes, Htg. {vrXuch. he calls arbustorum,'F.),VinA. palUpes, Tieti. 

 Whether our present fauna includes betulm is, I fear, doubtful, as it has not occurred 

 apparently for at least seventy years. Stramineipes, taken by Mr. Cameron himself, 

 is in the Natural History Museum at South Kensington. Oi pallipes he gives two 

 records, viz., " Pitlochry, Alfred Beaumont," and " near Hastings, Bloomfield." 

 These insects I have tried to trace by writing to their captors, but Mr. Beaumont 

 no longer possesses his specimen, and does not know what has become of it. (It 

 does not appear to be at South Kensington). Mr. Bloomfield most kindly sent me 

 his insect, but I saw at once that it was not a pallipes, and told him that I believed 

 it to be a (? of silvarum. Herr Konow, to whom I communicated the specimen, 

 agrees with me in this, and tells me that it = )nffricornis,Yo\lcnh., and that he was 

 much interested in seeing it, " da die Zusammongehorigkeit beider Geschlechter 

 bisher nicht constatiert war." 



Perhaps under these circumstances pallipes ought not to be retained in my 

 Tables ; but I leave it there as possibly British, though I cannot certify it as such. 



The above nine species may be thus tabulated : — 



1 Third ant. joint as long as or longer than the fourth and fifth taken to- 



gether 2. 



Third ant. joint little longer than tlie fourth '• 



2 (1) Fi-ons (space between ocelli and insertions of antennse) flattish or swollen, 



but not divided by a deep furrow into two distinct lateral tubercles. 

 Head above black and yellow, or ochreous with large black markings... 3. 



Frons swollen laterally into two well-marked tubercles, separated by a deep 



though narrow longitudinal sulcus. Head (in ? ) testaceous, with only 



