Bramble-bees and Others 



They include members of very diverse cor- 

 porations. Some, more industrious and 

 equipped with better tools, remove the pitch 

 from the dry stem and thus obtain a vertical 

 cylindrical gallery, the length of which may 

 be nearly a cubit. This sheath is next divided, 

 by partitions, into more or less numerous 

 storeys, each of which forms the cell of a larva. 

 Others, less well-endowed with strength and 

 implements, avail themselves of the old gal- 

 leries of other insects, galleries that have been 

 abandoned after serving as a home for their 

 builder's family. Their only work is to make 

 some slight repairs in the ruined tenement, to 



Flant-Vice) .—Tripoxyl on figulus, Lin. (provisions, Spid- 

 ers). — A Pompilus unknown (provisions, Spiders). — Ody- 

 nerus delphinalis, Giraud. 



3. PARASITICAL HYMENOPTERA.— A Leucospis, 

 unknown (parasite of Anthidium scapulare). — A small 

 Scoliid, unknown (parasite of Solenius vagus). — Omalus 

 auratus (parasite of various bramble-dwellers). — Cryptus 

 bimnculatus, Grav. (parasite of Tripoxylon figulus).— 

 Ephialtes divinator, Rossi (parasite of Cemonus uni- 

 color). — Ephialtes mediator, Gray, (parasite of Psen atra- 

 ttis). — Fa'nus pyrenaicus, Guerin. — Euritoma rubicola, J. 

 Giraud (parasite of Ostnia detrita). 



4. COLEOPTERA.— Zo«//ij miitica, Fab. (parasite of 

 Osmia tridentata). 



Most of these insects have been submitted to a learned 

 expert, Professor Jean Perez, of Bordeaux. I take this 

 opportunity of renewing my thanks for his kindness ia 

 identifying them for me. — Author's Note. 



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