164 MAND1ELII,ATA. HYMENOPTERA. 



each with a large triangular white spot; legs with the 4 anterior femora, 

 tibiae, and tarsi pale red, the inner base of the first blackish ; the posterior 

 femora red, with the extreme tip black, and the hinder tibifE also red, with 

 the apex broadly black ; hinder tarsi black ; wings dnsky-yellowish-hyaline, 

 with the stigma and costa reddish-brown, scales black. 

 From Mr. Ilaworth's collection. 



Sp. 101. pallidicornis. Niger, segmentis 2 et 3 nijis, 3 nigro maculato, ultimis 

 albomarginatis, pedibus fulvis, coxis nigris, antennis flavis apicefusco. (Long, 

 corp. 4 — 6\ lin. ; Exp. Alar. 8—9 lin.) 



Ic. pallidicornis. Gravenhorst, i. 294. — Steph. Nomen, 2d edit. col. 133. 



Black : mouth of the female dull red, with the mandibles black at the tip, of 

 the male dull straw; orbits in this sex broadly pale yellow on the face; 

 antennse with the 2 basal joints red, 9 following pale yellow, beneath dull 

 saffron or rusty, remainder rusty-red, dusky towards the apex, and in the 

 female entirely black ; thorax of the male with 2 yellow dots at the base of 

 the wings; scutellum yellow ; abdomen with the 2nd segment of the male 

 dull red, with a yellow spot on the sides; of the females red, with the 

 margin, or the base, obscure or black, 3rd of the male red, with a black 

 margin, of the female red or brown, with the base and apex black, or black 

 with a large lateral chestnut-bay blotch, 6th and 7th of the male pale yellow 

 on the back, 5th to 7th of the female with the dorsal edge white ; legs with 

 the coxaB and trochanters at the base black ; femora dull saffron, posterior 

 rusty at the apex ; tibiae yellowish, posterior rusty towards the apex, and 

 the extreme tip in the male black ; tarsi red, claws black; wings yellowish- 

 hyaline, with the stigma red, costa and scales reddish, or brown. 

 Rare : taken at Coombe wood and at Richmond Park, in June. 



Sp. 102. sanguinatorius. Niger, antennarum annulo et segmentorum ultimorum 

 margine albis, segmentis 2 et S tibiis tarsisque rufis. (Long. corp. 6 lin. ; 

 Exp. Alar. 11 lin.) 



Ic. sanguinatorius. Gravenhorst, i. 295. — Steph. Nomen. 2d edit. col. 133. 



Black: palpi dull red; mandibles chestnut; frontal orbits generally chestnut; 

 antennae with the apex involuted, 2 basal joints black, 3rd to 8th fuscous or 

 rusty, 9th to 14th whitish, yellowish beneath, the following fuscous or black; 

 thorax with a pale yellow line or streak below the wings ; scutellum pale 

 yellow ; abdomen with the 2nd and 3rd segments red, 4th to 6th with a 

 white or yellow dorsal spot, 7th with a whitish yellow spot ; legs with the 

 4 anterior femora red at the tip ; tibise red, anterior paler or yellow beneath ; 

 tarsi red; wings yellowish-hyaline, with the stigma red, costa and scales 

 brown or saffron. 



The white ring of the antennae is sometimes wanting. 



Not uncommon within the metropolitan district in July ; found 



also in Salop. 



