104 [May, 



as I feel oertam that the records of it i-efer (v. infra) to varieties of 

 rufipes. 



(N.B. — In the following Synoptic Tables, when abdominal seg- i 

 ments are numbered 1, 2, 3, &c.,the pi'opodeum is not reckoned as one 

 of the segments). 



SYNOPTIC TABLE FOR BRITISH MACROPHTA Spp. 



1 . Hind femora bright red, at least oixtside 2. 



— No part of the legs red ' 4. 



2. Hind femora streaked longly with black inside, hind tibiaj black entirely. 



Abdomen with a broad red band occupying three segments. Stigma 



yellowish ( $ . Length of body, abont 9 mm.) rufipes, Linn. <J . 



Hind femora almost immaculate red, hind tibiae not entirely black. Abdo- 

 men never with more than two red segments, sometimes ( J ) black entirely. 



3. 



3. Stigma yellow. Hind tibise bi'oadly ringed with red at their apices 



Abdomen distinctly and evenly pvxnctiired, scarcely shining ; segments 

 3 — 4 nearly always marked above with red ; sides of segm. 6, with large 

 creamy marks covering part of its dorsal surface ; sides only of segm. 7 

 with similar but smaller spots hardly visible from above ; apical segment 

 entirely of the same coloixr. Clypeus wider than the least distance 

 between the eyes. Length, about 11 mm rufijjes, Linn. 9 • 



— Stigma dusky. Hind tibiae at their apices only streaked (not ringed) with 



white (not red). Abdomen smooth and shining, its puncturation very 

 indistinct and irregular ; its whole dorsum (except the apical segment) 

 black, and only the sides ornamented with an even row of five equal sub- 

 triangular whitish spots or splashes, not visible in the direct dorsal view. 

 Clypeus narrower — or at least not wider — than the least distance between 

 the eyes (the inner orbits of the latter being distinctly less convergent 

 than is iisiial in this genvis). Smaller than rufipes, about 8 mm long... 



punctum album, Linn., 9 . 

 4. Hind femora and tibia3 entirely black. Abdomen nearly always with a 

 broad red central belt or band, but in certain cases black entirely. 

 (Large forms, about 10 — 13 mm. long) 5. 



— At least the hind tibiae marked with white or yellow. No part of abdomen 



ever red 6. 



5, Hind coxae in both sexes with large whitish markings. Red abdominal 

 band often more or less obsolete in the ^ i , more rarely so in the 9 9 • 



blanda, Fabr. 



— Very like the preceding, but the hind coxae are entirely black, and the red 



abdominal band, at least in British specimens, seems to be constant and 

 scarcely variable in both sexes. (In Soiith Europe, liowever, I have 

 taken both sexes with the abdomen entirely black, and similar varieties 

 may perhaps occur here also). This is a very common species almost 



everywhere annulata, Geoffr. 



(= neglecta, C). 



