374 HYMENOPTERA ACULEATA. 



hartorum but smaller, and easily recognizable by the 

 following characters. 



^, face and vertex posteriorly clothed with yellow hairs, 

 antennas shorter, fourth joint more than half as long as the 

 third, face short, the cheeks not one-third so long as the 

 eyes, head and thorax beneath clothed with pale hairs ; 

 armature with the sagittae not serrated beneath, each ter- 

 minating in a sickle-like hook, lacinia very short, simple and 

 Bubtruncate at the apex ; femora beneath clothed with pale 

 hairs, posterior metatarsi fringed with rather longer hairs. 

 ? and 5 much smaller than hortorum, the yellow colour 

 less bright, the face much shorter, the cheeks not being 

 more than a third the length of the eyes, the tongue not 

 reaching beyond the basal segment of the abdomen, and 

 the hairs of the posterior tibiae usually red instead of black. 

 A variety occurs in the Shetland Isles which F. Smith 

 described as nivalis, in which the hairs of the first and 

 second abdominal segments are entirely yellow, and those 

 of the apical segments yellowish, not white ; the hairs of 

 the tibiae in this variety are quite black. For a long time 

 the identity of this form has remained doubtful, but recently 

 Mr. Waterhouse was good enough to extract the armature 

 from one of the (J specimens in the British Museum, and 

 an examination of this organ proved the species at once 

 to be identical with Jonellus. The Rev. F. D. Morice 

 has lately taken both sexes freely in Shetland, and there 

 can, I feel sure, be no doubt of their being only varieties 

 of this species : in one small cJ taken by him, the hairs 

 of the abdomen are entirely pale. 



L. 10-18 mm. 



Local ; Chobham ; Woking ; Bournemouth ; Hayling 

 Island; Coombe Wood; Purley Downs; Shirley; Barmouth, 

 North Wales ; Perthshire ; [Smith). Rugby ; Lowestoft ; 

 (Morice). Lulworth; (Bale). Plymouth; Bickleigh ; 

 (Bigrull). Prawle Point; (Parjift). Norfolk; [Bridgman) ^ 

 Gloucestershire; (Perkins). Lerwick, Shetland Isles. 



