176 Rev. F. D. Morice on the 6th $ ventral segment 



it, rather than the Algerian species, with loti Morawitz. 

 But it is merely a question of degree. 



On the whole, in spite of the points of agreement 

 between loti, Mor., and moraivitzi, Perez, I think that the 

 former insect is probably not identical with the latter, but 

 rather with my specimens from the Petit Saleve. And 

 (pace Gerstsecker) I do not see why it should not keep the 

 name of loti, Mor. (I am not at all satisfied as to 

 Morawitz's females being really ciementaria, however 

 closely to Gerstaecker's eye they may have resembled them.) 



Accordingly in my opinion we have four distinct species, 

 as follows — 



1. loti, Mor. ($ ! $ ?) (= morawitzi, Gerst. !). 



2. morawitzi, Perez (nee Gerst. ? nee Ducke !). 



8. difformis, Perez (nee Ducke ! = moraivitzi, Ducke). 

 4. pallicornis, Friese ( = difformis Ducke ! nee Perez !) 



I sincerely hope that this note will not be taken as an 

 impertinent attack on Heir Ducke's most suggestive and 

 valuable work. Although my conclusions differ from his, 

 I should never have been in a position to draw any 

 conclusions at all about these bewildering species without 

 the materials he has collected. And it is certain that his 

 book goes far beyond anything yet published towards 

 facilitating the study of Osmia for ordinary entomologists. 



Specierum g/iias pro novis habeo diagnoses. 



1. 0. manicata, n. sp. (Figs. 3, 3a, 23, 23a.) 

 £ niger ; facie pedibus subtus que pallido-, superne fulvo-pilosus 

 abdominis fimbriis stratis apicalibus concoloribus. Exemplaribus 

 permagnis aduncse simillimus : differt antennis basi fortius dilatatis, 

 articulis intermediis pro latitudine longioribus subquadratis, tarsis 

 anticis multo densius fimbriatis, calcaribus posticis pallidis, punctis 

 sculp turaque fortioribus, prsecipue autem segmento ventrali sexto 

 nee ante apicem bipenicillato nee in spinam deflexam producto, sed 

 ante incisuram marginis medii profundam carina alta dentiformi 

 instructo. Long. 16 mm. 

 $ nobis ignota. 



Habitat. Algeria; Insula Ionise. 



2. 0. romana, n. sp. ? (Figs. 8, 26.) 

 £ antennarum articulo ultimo ut in acuticomi etc. paene monstrose 

 hamiformi. Ceteroquin vix a csementaria distinguenda, nisi forte 

 segmento dorsali sexto acutius bidentato : margine huius medio sat 



