1017.] 4.7 



example labelled c is headless and has also lost the apex of the al)- 

 donien, and is safer left undeterniiued. Two specimens (not numbered 

 nor lettered) are, one certainly and the other probably, S. variegatus. 

 Finally, one ^ is at a glance distinct from any species in the British 

 list, and I have ic^/entified it by von Hagens' figure and description 

 (kindly lent me by Mr. Morice), and by comparison with a single 

 Continental male in the general collection at the museum, as 8. scabri- 

 coUis Wesm. 



S. scahricollis Wesm. t^ 



The J (and the $ also, according to descriptions) can be dis- 

 tinguished at a glance from any other of our species by the excessively 

 densely punctured surface of the whole mesonotum and scutellum, 

 the surface between the pvmctures appearing to form, as it were, 

 merely a raised edge to the punctures, whereas in other species there 

 is always more or less distinct flat surface, at least in some parts, 

 between the punctures, however dense these may be. 



The first and second segments of the abdomen are finely and re- 

 motely, but quite distinctly, punctured, and in this respect are very 

 similar to one another. The stipites of the male genital armature are 

 smooth and shining, at least on the basal portion, and no definite 

 sculpture is visible even under a strong lens ; the more sti'ongly 

 chitinized part of the lacinia, seen from above, is triangular, and very 

 sharp at the apex, and it is bordered with a pale membrane inwardly, 

 which has at the apex a fringe of hairs, and also extends back a short 

 way along the inner margin of the stipes. Seen from the side, the 

 lacinia is emarginate at the apex, so as to form an upper and lower 

 process, and the latter bears short hairs beneath. In certain positions 

 of the lacinia, this lower process may appear in a dorsal view^ of the 

 armature, exterior to the upper one. 



The very old example here described is about the size of a jji7t- 

 frons or suhquadratus, and has had a large part of the antennae 

 and head eaten out ; but in the Continental specimen the basal im- 

 pressions (pubescent l^ands) of the flagellar joints of the antennae are 

 narrow. These organs are in general formed as in the gihbus group, 

 but v<m Hagens, no doubt rightly, places scahricoUis in a distinct 

 section with the large S.fHscipeiinis Germ., which latter once stood in 

 our lists on the authority of specimens in Leach's collection. 



Of his Melitta divisa Kirby gives Barham as the locality, and 

 says ' e rarioribus una.' In his paper on the genus, von Hagens says 



