108 MANDIBULATA. HYMENOPTERA. 



alho marginatis, tibiis stramineo-Jlavis, posticis apice nigro. (Long. corp. 

 62— 7|lin.; Exp. Alar. 11— 12lin.) 



Ic. orilatorius. Panzer. — Ic. tiegatorius. Steph. Catal. 348. Ah. 4409. 



Black : inner orbits and mandibles more or less distinctly yellow or ferrugi- 

 nous ; thorax with 2 white streaks or dots at the base of the wings ; scu- 

 tellum ochreous-w^hite ; abdomen with the 2nd and 3rd segments pale red 

 or safFroHj with the edges more or less blacky the 2 following with the 

 margins, and the 6th and 7th with a spot, white ; legs with the 4 anterior 

 femora ochreous or ferruginous at the tips, the tibiae and tarsi yellow, the 

 apex of the latter ft-equently dusky, the hinder pair being nearly black, and 

 the hinder tibise having the apex of that colour; wings yellowish-hyaline, 

 with the stigma pale saffron, costa brown, and scales black; cellule 5- 

 angular. 

 Rare : found occasionally in the spring near Hertford, and in 



Norfolk ; also in Salop. 



Sp. 112. laboratorius. Niger, facie thoraceque Jiavo maculatis, segmentis 2et 3 

 croceis, 2-7 margineflavo,femorihns dilute riifis, libiisjlavicantibus posticarum 

 apice nigro. (Long. corp. 6 lin.; Exp. Alar, lOg lin.) 



Tc. laboratorius. Panzer — Steph, Nomen. 2d edit. col. 134. 



Black : labrum and palpi dull yellow ; face the same, with a black line or 

 spot, or black, with the iimer orbits and a dot on the clypeus dull yellow ; 

 antennse beneath with the 2 basal joints yellowish, the remainder generally 

 ferruginous; thorax with a line beneath the scutellum, another before the 

 wings, and at times one beneath and on the upper margin of the collar 

 yellowish- white; scutellum also yello wish- white ; abdomen with the 2nd 

 and 3rd segments red, the 3rd to the 7th edged with whitish-yellow ; legs 

 with the 4 anterior coxee generally with a white spot beneath; femora red, 

 4 anterior yellow at the tip, tibis and tarsi yellow or tawny, the posterior 

 dusky at the apex ; wings slightly smoky-hyaline; costa and stigma fuscous 

 or black, scales the same, with a white dot; cellule somewhat 5-angular. 



Posterior femora and tibiae sometimes black at the apex. 



Also very rare : I have twice taken it at Hertford in April. 



Sp. 113. amatorius. Plate xl. f. 1. — Niger, annulo antennarum, segmento 

 2-do, tibiis et tarsis, dilute croceis, segmentis 2-7 Jiavomarginatis. (Long. 

 corp. 6—7 lin. ; Exp. Alar. 11 — 12 lin.) 



Ic. amatorius. Muller. — Ic. ambulatorius. Steph. Catal. 348. No. 4410. 



Black: inner orbits yellow or whitish; antennae with the 4th to 7th joints 

 entirely or beneath ferruginous, the 8th to 17th, more or less, pale saffron ; 

 thorax with 2 whitish-yellow spots at the base of the wings ; scutellum 

 yellowish- white; abdomen with the 2nd segment pale saffron-yellow, the 

 margin pale sulphureous, the following segments black, with the margin 

 pale sulphur ; legs with the 4 anterior femora at the apex generally ferru- 



