250 



STRPHID.^. 



7. Eyes absolutely contiguous in (^ for some 



distance. 2nd antennal joint about two- 

 thirds the length of 3rd ; 3rd much lougei 

 than broad, but only a little wider than 

 2nd. 4th abdominal seguient with no trace 

 of a narrow median stripe, but with the 



usual two curved spots only. Lengtli omm. alb^'fro>^s,^Yalk., p. 257. 

 Eyes approximate only in (j"? their point 

 of approach angular. Antennaj distinctly 

 elongate*; 2nd joint nearly as long as 

 3rd: 3rd much longer than broad, barely 

 wider than 2nd. 4th abdominal seguient 

 with a median very narrow stripe ex- 

 tending to tip of abdomen ; the usual pair 



of spots nearly straight and perpendicular. [p. 258. 



Length o| mm piilvenilentus, sp. n., 



8. Scutellum cupreous ; in contrast with black 



shining abdomen 9. 



Scutellum not cupreous ; not in contrast 

 with either thorax or abdomen 10. 



9. Thorax only sliglitly cupreous ; narrower, [p. 258. 



more slender species. Lengtli 5-6 mm. . halictoides, Brun., 

 Thorax shining cupreous; a more thickly [p. 256. 



set species. Length 7 mm ceneithorax, Brun., 



10. Thorax, scutellum and abiiomen distinctly 



shining blue-black. Lf-nglh 7 mm 11. 



Thorax, scutellum and abdomen dull black, 

 barely shiniiig; without any bluish tinge. [p. 260. 



Length 8 mm._ nexvittatus, Brun., 



11. Third antennal joint slightly pale on inner 



side. Abdomen shining seneous-black 

 with white pubescent spots ; middle tibiae 

 brownish-yellow on basal half and on 

 inner side ; hind tarsi brown. Wings [p. 260. 



vitreous. Lengtli 7 mm perpensus^ Brun., 



Third antennal joint uniformly blackish. 

 Abdomen deeper blue-black, with pubes- 

 cent spots more distinct; middle tibia? 

 and tarsi wholly orange ; hind tarsi more 

 orange. Wings grey. Length 7 mm... ^jerpferw*-, Brun., p. 261. 



This table of species, though it does not by any means satisfy 

 me, illustrates in a general uay the affinities of the species, with 

 the exception of aneitlwrax. The four first species bear a con- 

 siderable resemblance one to anotlier, by the tlrst pair of abdo- 

 minal spots being larger than the others and more or less rounded 

 instead of lunate. JE. rufoscutellatus, pulcherrhmis and ceneithor ax 

 form a second group with a conspicuous, cupreous or aeneous 

 thorax and scutellum, the latter with dense orange or yellow 

 pubescence. The remaining species form a group with more 

 normal markings, that is to say, possessing blackish or greyish 

 bodies with three pairs of greyish curved or lunate spots placed 



* Longer than in any other species in this table. 



