ON LEUCOSPIS. 215 



Ilymenoptera, for my example of this species, which I have 

 inscribed with his name. He beheves it to be of American 

 origin, as it came into his possession in company with various 

 insects from that country, including Pelecinus polijcerator, &c. 

 It ought to form a distinct section in the genus, from the 

 posterior femora having only six teeth, although, in certain 

 positions, a minute rudiment of a seventh tooth is just visible. 



Leucospis subnotata. Fem. Nigra, colore albido-jlavescenti 

 parce notata, femoribus posticis 9-dentatis, coxis posticis 

 immaculatis oviductu abdominis bashi superante. (Long. 

 Corp. 4| lin. ; expans. alar. 8 lin.) 



Caput nigrum, punctatum, immaculatum, canalicula frontali sub- 

 metallica : antennae nigrae articulo 1"^". subtus albido, 2'^^ 

 apice, 3, 4, et ultimo obscure rufescentibus : thorax niger, punc- 

 tatus ; collaris lateribus margineque postico toto, et antico abbre- 

 viate tenuiter flavidis ; mesothoracis scutum lateribus flavido 

 tenuiter vittatis, dorso immaculato ; mesothoracis scutellum apice 

 lunula angusta albida ; metathoracis praesentum inerme ; epi- 

 mera metathoracica linea flavida notata : abdomen nigrum, punc- 

 tatum, basi obscure rufescens, segmento l'"". versus apicem 

 flavido — (late et in medio interrupte) — fasciato, segmento 2''". 

 sequentibus multi^ angustiori ad latera linea tenui albida infere 

 notato, 3**°. apice flavido fasciato, (in medio supra angustiori et 

 interrupto) lunulisque duabus minoribus apicalibus flavidis, 

 oviductus piceus, abdominis basin superans : coxas omnes nigree, 

 posticas 2 apice rufescentes, interne albido vix notatae, femora 4 

 antica nigra, apice, albida ; tibiae anticae nigrae linea supera fulvA, 

 intermediae et posticae flavida linea infera nigr^, femora posfica 

 nigra, apice interne fulva, externe basi et apice macula parva 

 albidA notata, dentibus 9 brevibus nigris, 1™°. crassiori obtuso, 

 2*^°. parvo ; reliquorum 4 et 5 longioribus acutis ; tarsi omnes 

 fulvi : alae fuscescentes, costa saturatiori. 

 Habitat in America Septentrionali, apud Halifax, Novae Scotiae ; ubi 

 rare occurrit. Communicavit Dom. G. B. Sowerby. 



I will only add, that in a genus like the present, in which 

 the specific characters depend upon apparently trifling dis- 

 tinctions, it is almost an useless waste of labour to attempt to 

 identify the species so concisely described by the old authors. 

 Leucospis Hopei. Mas. Nigra, collari unifasciato, epimeris 

 metathoracicis nigris, antennarum apice tihiis tarsisqiic 

 rufis. fliOnQ-. Corp. 5 lin. ; expans. alar. 81 lin.) 



