62 



NATURAL HISTOHY SOCIETY OF DUBLIN. 



comes to sugared flowers in the evening; and once, about 

 midnight, it tapped for admission at the lantern of the Bailey 

 Lighthouse, and was secured. 

 Macroglossa Bombyliformis. — Common in suitable localities, especially 



in the county of Wicklow. 

 Sesia Bembeciformis. — Common in the county of "Wicklow ; also occurs 

 at Howth. 

 ,, Apiformis. — Cork and Waterford, but has not been observed fur- 

 ther north. 

 ,, Myopasformis. — Dublin and Cork. 



,, Eormiciformis. — Mr. Halliday. No information as to locality. 

 ,, Tipuliformis. — Common near Dublin. 



,, Scoliseformis ? — I have observed traces of a Sesia in the trunks 

 of the birch trees atKillarney, which I believe to be this species, 

 but have not yet obtained the insect. 

 Cossus Ligniperda. — Wicklow. Apparently scarce. 

 Hepialus Hectus. — Wicklow and Killarney. Common. 

 ,, Lupulinus. — Common everywhere. 

 ,, Sylvinus. — County of Wicklow, by Mr. Bristow. 

 ,, Velleda. — Common everywhere. 

 ,, Humuli. — Do. 



Procris Statices. — Generally distributed, and common. 

 Zygsena Minos (type). — Galway. I captured a considerable number of 

 this insect in a pasture near Galway in July, 1860. 

 ,, Nubigena (variety). — Galway and Clare; local, but in profu- 

 sion wherever found. 



The differences between Minos and Nubigena are, I think, sufficient 

 to justify the separation which has been made by Continental entomolo- 

 gists, and may be thus stated : — 



Minos (Plate I., Fig. 5). 



Imago appears middle of July ; frequents 



pastures. 

 Expansion of wing, l£ to 1^ inch. 

 Abdomen, velvety; colour, steel-blue. 

 Fore wings — the red costal streak never 



meets or overlaps the point of the discal 



or central streak. 

 Tendency of variation is towards division 



of the streaks into spots. 



Nubigkna (Fig. 6). 

 Imago appears end of June ; frequents 



rocky places. 

 Expansion of wing, 1 inch 2 lines. 

 Abdomen covered with long, shaggy, 



dead black hair. 

 Fore wings — the costal streak always 



meets or overlaps point of discal streak. 

 Tendency of variation towards a suffusion 



of the whole wing with red. 



The specimens of Zygsena taken in Argyllshire, and noticed in the 

 " Zoologist" for 1861, p. 7716, as Minos, are Nubigena. I possess a pair 

 of them, through the kindness of Professor Wyville Thomson. 



Zygsena Trifolii. — Galway. Local. 



,, Filipenduke. — Everywhere, but most common on the eastern 

 side of the island. It occurs on the same ground as JSTubi- 

 gena, but in comparatively small numbers. 



Nola Cucullatella. — Common. 



