Hymenoptera aculeata. 



ibique segmento 2 do rotundate-campaniformi saltern duplo an- 

 gustius. 



Clypei apex triangulariter excisus. Pronotum angulis iner- 

 mibus. Scutellum longum, fere quadratum. Postscutellum fere 

 in formam cristas elevatum. Propodeum in medio late ac pro- 

 funde excavatum, arese eiusdem laterales postice conice eminentes 

 et sub apicibus suis breviter quidem sed acute denticulatse. Ab- 

 dominis segmenti 2 di pars ventralis tumidissima, quam dorsum 

 non minus convexa, sulco costato basali psene nullo. 



Clypeus, mandibular, scapus antice, pronoti anguli interni, 

 macular duo postscutelli psene confluentes, pedes infra cum tibiis 

 tarsisque totis flava. Tegulae flavse, nigro-notatse. Abdominis 

 segmenti primi apex (in dorso) anguste, secundi (et in dorso et 

 in ventre) latius, flavo-fasciati. Reliquorum segmentorum apices 

 plus minusve obsolete flavo picti, vel omnino nigrantes. 



Caput, thorax cum propodeo, abdominisque 3 segmenta 

 basalia satis crasse denseque punctata, subopaca: segmentorum 

 reliquorum punctatura magis obsoleta. Latera petioli pilis albi- 

 dis erectis fimbriata, dorsum eiusdem nudum. Facies et pectus 

 strato-argente-subpilosa. Abdominis segmentum secundum bre- 

 vissime strato-sericeo-pubescens. — Long. circ. 7 mill. 



I feel some hesitation in treating this curious little species 

 as an Ancistrocerus, but I do not know where else to place it. 

 Herr Kohl, who kindly examined it at my request, suggests 

 that it may be a new species of Nortonia, Sauss. It does not, 

 however, appear to me to agree at all with De Saussure's dia- 

 gnosis of his genus, and is utterly unlike the species which he 

 names as his "type" of it, viz. 0. intermedins, Sauss. The latter, 

 besides differing completely from aberrations in general facies, 

 size, and coloration, has no trace of the transverse crest near 

 the base of the petiole, which is so conspicuous in aberrations, 

 and which is generally thought, when occurring together with 

 hook-tipped male antennae, to mark a species as an Odynerns of 

 the Ancistroeerus group. I am unable to follow De Saussure in 

 considering the characters on which he founds Nortonia as generic, 

 and must own that, personally, I regard intermedins, in spite of 

 its peculiarities, as a Lionotns. At any rate, I cannot see my 

 wav to grouping aberrations with it on the characters by which 

 &e Kumenidse are at present classified. 



