Apes boreales. 105 
Osmia fulviventris Latr. Gen. Crust. et Ins. 4. 165. Enc. 
Meth. VIII. 578. est synonymon Osmie Lediana. S 
In Osmice coerulescentis mari segmentum 6:tum in medio 
pauxillum vel vix emarginatulum. 
Osimic leucomelane referendus videtur mas elongatus 
vultu fere Heriadis, cui generi transitum ab hoc indicat, seg- 
mentis abdominis striga pilorum adpressorum utrinque, valvula 
anali dorsali supra visa subtriangulari fovea impressa in medio, 
segmento 6:to utrinque in margine dente parvo; thorace capite- 
que pallide pilosis; longit. circa 10 mm., ala ant. 6 mm. — (Fe- 
mina Ösrmice leucomelane variat clypeo infra subintegro). 
Sed adest in Museo Holmiensi ex Holmia et Bottnia se- 
ptentrionali mas alius sat similis priecedenti, fere major, differens 
pilositate pallida 'abdominis non adpressa et subfasciata, fovea 
valvule analis dorsalis minus profunda planiore, thorace et occi- 
pite fulvo-pilosis in integris. 
Osmic tuberculatcee nostre forsan est mas, qui preser- 
um distinguitur valvula anali dorsali producta in apicem latiuscu- 
lum truncatum nitidum, basi fovea impressa sub segmento 6:to 
suboccultata (in mortuo). Ceteroquin pilositate tinerascente, in 
vertice et thorace supra rufa vel rufescente, in abdomine pärca 
önerascente, in marginibus segmentorum subfimbriata albida. 
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