182 MANDIBULATA. — HYMENOPTEEA. 



Black : mouth autl face, or inner orbits broadly, yellow ; antenna? with the 

 basal joints beneath dull yellow; thorax with a streak before, and some- 

 times another below the wings, and the scutellum yellow ; abdomen with the 

 2nd and 3rd, and occasionally the 4th segments, reddish-yellow, with a small 

 somewhat triangular black dorsal spot ; legs with the tips of the trochanters 

 red, the anterior femora beneath and at the apex, and the middle at the tip 

 alone reddish-yellow; tibiae yellow, hinder ones black at the apex; wings 

 smoky-hyaline. 

 Taken near London in June, and also in Salop, but apparently 



rare. 



Sp. 148. luctatorius. Niger, punctis seu lineolis ad radicem alarum, segmtntis 



2 et 3 iibiisque Jlavis, harum posticis apice nigra : mas Jiicie Jiavd. (Long. 

 Corp. 5— OUin.; Exp. Alar. 8— 12§ lin.) 



Ic. trilineatus. Linne.—'Steph, Catal. 347. No. 4385. 



Black : mouth and face yellow, the last sometimes with the middle black, and 

 in the female ? with the inner orbits alone and a dot on the sides of the 

 clypeus of that colour ; antennae porrect, the basal joint beneath yellow, 

 and the remainder sometimes red ; and of the female ? from about the 9th 

 to 14th joints are white above ; thorax with the ordinary yellow streaks and 

 dots, or totally black ; scutellum yellow, its disc sometimes blackish, or 

 entirely black ; abdomen rather narrow, with the 2nd and 3rd segments 

 yellow, the 4th for the most part with a tawny or red patch at the basal 

 angle, and occasionally the extreme edge both of it and of the 5th very 

 narrowly yellowish; the 4th is at times entirely yellow, and the 2 preceding 

 occasionally slightly tawny on the sides; legs yellow, coxae and trochanters 

 black, occasionally more or less yellow at the apex, or entirely yellow ; 

 femora more or less stained with black, especially towards the base, though 

 the anterior pair are sometimes clear yellow ; tibiae yellow, posterior pair 

 black at the tip, or at times immaculate ; binder tarsi with the apex of the 

 joints sometimes blackish ; wings ample, slightly stained, hyaline. 

 Extremely variable in size and in the proportions of yellow on the legs: the 

 female 1 suspect is not rightly known ; the notice of that sex above given 

 being from Gravenhorst, v/ho appears to have seen 3 or 4 only out of multi- 

 tudes of the other sex. 

 Parasitic upon Tripha?na Pronuba and other NoctuidiE. 



Very abundant in certain situations within the metropolitan dis- 

 trict, especially near Darenth wood, in June ; common also in other 

 parts of the country. 



Sp. 149. fulvicornis. Niger, facie lineolis ad radicem alarum segmentisque 2 et 



3 Jlavis, antennis basin ver-sus falvo rufis, pedibus Jlavis, nigro maculatis. 

 (Long. corp. 4—5 lin.; Exp. Alar. 7 — 10 lin.) 



Ic fulvicornis. Gravenhorst, i. 422. — Stepli. No7nen. 2d edit. col. 135. 



Black : mouth and face yellow ; antciiua; with the basal joint black, yellow 



