GLEANINGS FROM MY NOTEBOOKS III. 221 



N. Durham and at Kippen, Stirling ; more freely at Achterneed, 

 Eoss-shire, and Forres. 



N. chaonia, Hb. Ova discovered on oak at Beamish, N. Dur- 

 ham, and Corbridge, S. Northumberland, the latter being the 

 first county record. On July 25th, when in search of certain 

 material for experimental work in Genetics, I found full-grown 

 larvae at Great Ayton, Cleveland. 



Poscilocampa pojjuli, L. Larvae regularly but in no great 

 numbers from oak, birch, and alder, N. Durham and in Lonsdale 

 and Kildale, N. Yorkshire. 



Eupithecia valerianata, Hb. Seemingly only recorded pre- 

 viously in our counties from Hesleden Dene, the observer 

 being Mr. Gardner. Since I commenced to study cecidology 

 I have found the larvae widespread in Durham on both Valeriana 

 sambucifolia and V. clioica. It is common at Billingham, 

 S. Durham, and far from rare at Chester-le-Street, N. Durham. 



E. pulrhellata, Stph. Of this " pug " there is uo Northumber- 

 land record given by Robson ; it swarms, however, as larvae in 

 the foxglove blossoms both in the ravines and in gardens in 

 West Allendale. In Ireland I found it ubiquitous in Tyrone 

 and Derry. 



E. pygmceata, Hb. This minute Geometer can be secured 

 in numbers on the outcrop of basalt just behind Kinghorn in 

 Fifeshire; it flies in the bright sunshine toward the end of July. 



E. tenuiata, Hb. Quite common, but local, as larvae in the 

 catkins of S. aurita, S. cinerea, and S. caprea; apparently 

 subalpine in its preferences as 1 have taken it at 800 ft. in the 

 Clevelauds, at 1200 ft. in West Allendale, Northumberland, at 

 lower altitudes in the Deywent Valley, Durham, and Forres. 



E. indigata, Hb. Common enough at Eston, and in Lons- 

 dale, Cleveland; rarer in Dipton Woods, Northumberland. 



Melanippe hastata, L. Found in spun leaves of birch in the 

 Cleveland Hills, and in leaves of Myrica gale, treated similarly, 

 on Kippen Moss. 



Melanthia alhicillata, L. Very local on liuhiis cccsius, etc., 

 in N. Durham, but on rasp, B. idceus, Cookstown, Co. Tyrone. 



Venmia camhrica. Curt. In South Northumljerland I used 

 to get very typical forms sitting on mountain-a^h trunks at 

 €orbridge. On July 25th I noted some very line-rayed melanic 

 forms seated similarly at Great Ayton, Cleveland. Why this 

 species and Melantlda hicolorata should be melanic in this 

 particular wood whilst it provides Oporabia dilutata and 

 Amphidasys hetularia with the only local habitat for forms 

 with a white-ground colour passes all understanding. In the 

 same way the Northumberland locality yields fine melanic 

 forms of Ypsipetes impluviata, whilst those found in the York- 

 shire wood are quite ordinary. 



Larentia olivata, Bkh. To be scraped in great numbers 



