1 98 M ANDIBUL ATA. HYMENOPTEK A. 



both sexes deep black, extreme tips of the 4 anterior femora and inner 

 margin of the tibiae straw-coloured or tawny. 



Very rare : the female I possess I took at Hertford in June ; the 

 male I obtained from Scotland. 



Sp. 193. castaniventris. Niger, abdomine ruj'o, segmento 1-mo nigra, iibiis 

 rufis, posticis apice nigra, aniennarum annulo alba : mas ? orbiiis ocularum 

 albidis. (Long-, corp. 5 — 61 lin. ; Exp. Alar. 9 — 10 lin.) 



Ic. castaniventris. Gravenhorst, i. 536. — Steph. Nomen. 2J edit. col. 137.] 



Black : male ? with the inner orbits white ; antennae porrect ; of the female 

 involuted at the apex, with the 9th to 14th joints white above; thorax 

 immaculate; abdomen red, with the basal segment black, and the apex 

 occasionally more or less chestnut or red, the 2nd finely aciculated ; legs 

 moderate, the 4 anterior black, with the apex of the femora and the tibiae 

 beneath, more or less ferruginous ; posterior black, with the tibiae ferru- 

 ginous, black at the tip, or red, with the coxae and trochanters, and the 

 apex of the femora and tibiae black ; wings hyaline or flavescent ; cellule 

 3-angular. 

 Not very rare : taken at Darenth wood in the middle^of June, and 



also in Devonshire. 



Sp. 194. pyrrhopus. Niger, orbitis ocularum internis albis, femoribus tibiisque 

 rufis, harum posticarum apice nigra, abdomine rufo castaneo basi nigra. 

 (Long. corp. 6 lin.; Exp. Alar. 10 — 11 lin.) 



Ic. pyrrhopus. Steph. Namen. ^d edit. col. 137. 



Black : antennae porrect ; facial orbits rather broadly white, palpi whitish ; 

 thorax with an obscure white dot before the wings; abdomen rather 

 slender, the basal segment black, with its apex more or less reddish, the 

 remaining segments chestnut-red ; legs light red, with the coxae, trochanters, 

 and tips of the hinder pair of tibiae, and the posterior tarsi black ; wings 

 hyaline; cellule 5-angular. 



The 2nd and 3rd segments of the abdomen are sometimes slightly blackish on 

 the disc, and the thorax immaculate. 

 Apparently very rare: taken near London and in Norfolk, in 



June. 



Sp. 195. albilarvatus. Niger, abdomine rufo basi nigra, tibiis anterioribus rufis, 

 facie et annula aniennarum albis. (Long. corp. 5 — 6 lin. ; Exp. Alar. 9 — 

 10§ lin.) 



Ic. albilarvatus. Gravenhorst^ — Steph. Catal. 347. No. 4347. 



Black : face and mouth white ; antennae porrect, long, the basal joint white 

 beneath, the 15th to 20th, or more, entirely white, the remainder generally 

 ferruginous beneath ; abdomen narrower than the thorax, the basal seg- 

 ment black, with 2 elevated lines, the 2nd red, with the base black, the 

 3rd and 4th either entirely red, or with the base dusky, the 2 following 

 fuscescent, with the margins red, or red, with the extreme base obscure, the 



