ON LEiTcospis. ;217 



From Spiiiola's observations, the economy of this insect 

 appears to be very different from that of the other species 

 which have been observed. " Foeminam inveni in galla fun- 

 gosa coronata mespiUformi Quercus ramulorum, in montibus 

 Orerii." 



Leucospis assimihs. Westio. $ (nova species.) Nigra, 

 abdoinine thorace dimidio fere longiore, coUare jlavo- 

 marginato, margine antico abhreviato, scuto mesothoracico 

 toto iiigro, abdomine utrinque macula minuta flava inter 

 fascias 1 et 2, tihiis intermediis flavis. (Long. corp. 

 3| — 4 lin. ; expans. alar. 6f — 7|. hn.) 



Leuc. dorsigerce affinis. Corpus gracile : caput nigrum, immacu- 

 latum : antennae nigrse, articulo 1™°. in medio subtus flavescenti : 

 collate nigrum, bifasciatum, fascia antica abbreviata, postica 

 elongata, et per margines laterales collares paullo producta? : 

 mesothoracis scutum totum immaculatum, ejusdem scutellum 

 apice lineA, transversa, Integra, antice fere recta : metathoracis 

 prasscutum obtuse bidentatum : epimera metathoracica flavo- 

 notata: abdomen thorace dimidio fere longius, subcompressum, 

 ad secundum segmentum angustius, flavo 3-fasciatum (fasciis in 

 medio supra interruptis) 1™^. utrinque abbreviata, inter fascias 



1 et 2 utrinque macula minuta flava ; fasciis 2 et 3 longitudine 

 aequalibus : oviductus ad basin abdominis productus : coxae 

 4 anticse nigrse, femora 4 antica nigra apice pallida tibiae anticae 

 flavescentes extus nigrescentes, tibiae intermedias flavae : coxae 

 posticse nigrae, apice subtus macula minuta flava notatae ; femora 

 postica interne nigra, externe nigra, basi subtus margineque 

 apicali supra flavis ; dentibus 12-armata, 1"^°. maximo, e dentibus 

 reliquis in femore uno dentes 3 et 4, in altero dentes 5 et 6 sunt 

 majores ; tibiae posticse flavae, intus nigrae ; tarsi omnes flavidi : 

 alae subfuscae, costa saturation. 



Var. ? . — Articulo 1™°. antennarum subtus flavido vix notato, collaris 

 lateribus totis flavo tenue marginatis, coloreque flavo femorum 

 posticorum minus extenso, femoribus dentibus 16-armatis (dentes 



2 et 4 in uno femore fere obliterati), 1"^°. maximo, 6, 7 et 8 reliquis 

 majoribus : caeteris cum prsecedenti ad punctum convenit. 



Habitat in Europa — Germania ? In Mus. Hope. 



The remarkable difference in the denticulation of the pos- 

 terior /emora, in this species, is vi^orthy of observation. 



NO. II. VOL. II. F F 



