ON LEUCOSPIS. 215 



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

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

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

 insects from that country, including Pelecinus polycerator, See. 

 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 jjosticis 9-dentatis, coxis jiosticis 

 immaculatis oviductu abdominis basin superante. (Long, 

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



Caput nigrum, punctatum, immaculatum, canalicula frontali sub- 

 metallica : antennas nigra? articulo l mo . subtus albido, 2 di . 

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

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

 viato 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 mo . versus apicem 

 flavido — (late et in medio interrapte) — fasciato, segmento 2 do . 

 sequentibus multo angustiori ad latera linea tenui albida infere 

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

 interrupto) lunulisque duabus minoribus apicalibus flavidis, 

 oviductus piceus, abdominis basin superans : coxae omnes nigra?, 

 postica? 2 apice rufescentes, interne albido vix notatae, femora 4 

 antica nigra, apice, albida ; tibia? antica? nigrae linea supera fulva, 

 intermedia? et posticae flavida linea infera nigra, femora postica 

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

 albida notata, dentibus 9 brevibus nigris, l mo . crassiori obtuso, 

 2 do . parvo ; reliquorum 4 et 5 longioribus acutis ; tarsi omnes 

 fulvi : ala? fuscescentes, costa saturation. 

 Habitat in America Septentrionali, apud Halifax, Novae Scotia? ; 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 tibiis tarsisqtic 

 rufis. fLon?. eorp. 5 lin. ; expans. alar. 8| lin.) 



