258 MANDIBULATA. HYMENOl'TERA. 



Sp. 76. semicaligatus. N'iger, abdominis medio rufo, pedibus anterior ibusrufis, 

 femoribus fulvis, posticis nigris,jemorvm ei tibiarum hasi rtifis, facie nee non 

 articulo \-mo avtennarum flavis. (Long. corp. 3$ — 5 Ihi. ; Exp. Alar. 6 — 7i 

 Im.) 



Tr. semicaligatus. Gravenhorst, ii. 271. — Steph. Nomen. 2d edit. Gen. 715. 76. 



Black : face and mouth yellow; tips of the mandibles black; antennae as long 

 as the body^ black, or rusty-brown, the basal joint yellow beneath; thorax 

 sometimes with a yellow dot below the wings ; abdomen rather narrower 

 than the thorax, somewhat sessile, the basal segment black, 2nd to 5th of 

 nearly equal width, being very gradually broader, 3rd red, with its edge at 

 times blackish, 4th red or chestnut, with the tip dusky, or totally black, of 

 which colour are the remaitiing segments ; legs rather long, 4 anterior 

 yellow or pale tawny, with the femora and sometimes the tibige of a brighter 

 hue, coxee with a black dot, or black with the tip yellow, the middle pair 

 sometimes totally black; posterior red, the tarsi, apex of the tibiae, coxae 

 and trochanters, or their base, black, the tibiae yellowish towards the base ; 

 wings hyaline; cellule 3-angular, somewhat petiolated. 

 Not very common : found in the neighbourhood of London in 



June. 



Sp. 77. insolens. Niger, segmento 3 pedibusque riifis. coxis et trochanteribus, 

 nee non tibiarum posticarum apice nigris ; mas palpis albis. (Long, corp, 

 4—5 lin. ; Exp. Aiar. 7—9 lin.) 



Tr. insolens. Gravenhorst, ii. 274. — Steph. Nomen. 2d edit. Gen. 715. 77. 



JBIack : palpi of the male white ; antenuEe about as long as the body, involuted 

 at the tip ; abdomen rather narrow, of the male a little dilated at the apex, 

 of the female ovate-fusiform, the basal segment with a fovea at the base, 

 sometimes produced into a narrow groove, extending beyond the middle, 

 the 2nd of the female sometimes with an obscure chestnut lateral spot, 3rd 

 red, with the margins occasionally black in the female, remainder black and 

 silky ; legs slender, red, coxte and trochanters black, tarsi black, the 4 

 anterior reddish at the base ; hinder tibiae black at the tip ; wings rather 

 smoky -hyaline ; cellule irregiilar and slightly petiolated. 

 Not very common : taken in June in the vicinity of London, and 



in Salop. 



Sp. 78. zonatus. Niger, abdominis medio rufo, pedibus anterioribus tibiarumque 

 posticarum apice fulvis, coxis et trochanteribus nigris, ore, facie et maculis 

 2-bus thoracis flavis. (Long. corp. 5 lin.; Exp. Alar. 8§ lin.) 



Tr. zonatus. Steph. Nomen. 2d edit. Gen. 715. 78. 



Black : mouth and face yellow, tips of the mandibles black ; antennae as long 

 as the body, rather slender, dusky-black, beneath with the 3 basal joints 

 black, the remainder red ; thorax with a large irregular yellow patch on 

 each side before the wings ; abdomen elongate, clavate, slightly petiolated, 

 acute at the apex, the basal segment black, 2nd and 3rd, or the basal half o£ 



