178 MANDIBULATA. HYMEXOPTEKA. 



bordered broadly with that colour m the female^ 3rd nearly all yellow in the 

 malej having only a dot or triangular spot on the margin in that sex, but in 

 the female with a broad band, the 4th has the basal angles, especially in the 

 female, and sometimes the marghi_, yellow ; the 7th is yellow, and the inter- 

 mediate ones sometimes bordered with that colour, or totally black ; legs 

 yellow, coxa3 black, anterior with a yellow dot in the male, in which sex the 

 trochanters are also yellow; femora either with a black streak within, or 

 black, with the apex reddish ; posterior tibia? black at the apex ; wings 

 yello w ish-hy aline. 



Not uncommon in the neighbourhood of the metropolis in June 

 and July ; also found at Netley, &c. 



Sp. 137. occisorius. Niger, facie iibiis tarsisquejlavis, segmento 2jlavo macula 

 nigra, 3 iotojlavo, sequentibus margins Jlavo. (Long. corp. 5 — 7 lin. ; Exp. 

 Alar. 9— Hi lin.) 

 Ic. occisorius. Fabricius. — Steph. Caial. 348. A^o. 4412. 

 Black : mouth and face yellow, this last sometimes with a black mark ; 

 antennse with the basal joint beneath, then with a streak below the wings, 

 an obscure dot before them, the upper edge of the collar, and occasionally a 

 streak behind the scutellum and the last, yellow ; abdomen Avith the 2nd 

 segment yellow, with a transverse black fascia or streak towards the hinder 

 margin, sometimes very faint, 3rd entirely yellow, with rarely a faint black 

 line towards the edge, the remainder black, edged with yellow; legs with 

 the coxae, trochanters, and hinder femora black, 4 anterior femora beneath 

 and at the apex yellow, tibiee and tarsi yellow, hinder tibiae black or fuscous 

 at the tip; wings yellowish-hyaline. 

 Can this be the male of Ic. sarcitorius ? 



Not very abundant : found near London in the spring, at Hert- 

 ford, &c. 



Sp. 138. xanthius. Niger, facie, lined ante alas, dorso metatho7ncis pedibus et 

 abdomine sordideJlavis,femoribus posticis et basi segmentorum nigro maculatis. 

 (Long. corp. 6 lin.; Exp. Alar. 11 lin.) 



Ic. xanthius. Gravenhorst, i. 392. — Steph. Nomen. 2d edit. col. 135. 



Black : face and all the orbits yellow ; antennjB fuscous, with the 2 basal 

 joints yellow below ; thorax with the margins of the collar, a line before the 

 wings, another beneath, and a dot below this, with 2 longitudinal lines on 

 the back, one beneath the scutellum, and the entire declining portion of the 

 metathorax, with the scutellum, yellow ; abdomen with the basal segment 

 yellow, peduncle red, black at the base, 2nd to 4th yellow, with the extreme 

 apex black, 5th and 6th black, with the sides and margins yellow, 7th 

 brown, with the sides yellow ; legs yellow, coxaa black, with a yellow spot ; 

 trochanters black at the base, 4 anterior femora externally fulvous, posterior 

 black externally and internally; wings yello wish-hyaUne. 

 Very rare : taken, I believe, near London. 



