xxxii. '21] ENTo.\ioi.o.;ir\i. NKVYS 213 



The only other record of this species the writer has been 

 able to locate is that of Cholodkovsky who reports having taken 

 a species which he believes to be this from "Der Krim" in 

 October. 



10. Dilachnus hyalinus (Koch). Buckton ; one slide (2 alate $ $, 

 1 apterous and 1 immature 99): "macrocephalus; Bramshot." Buck- 

 ton ; one slide (1 apterous 9) ; "abiclis Walker." 



This species from Picea e.vcelsa is the one described by 

 Buckton as Lachniis macrocephalus sp. n.. but which Cholod- 

 kovsky and Del ( iuercio place as a synonym of Lachnns hya- 

 linus Koch. Mordwilko states that it is possibly a synonym. 

 Buckton records it from Bramshot and Walthamston and Mor- 

 ley from Ipswich. 



11. Dilacjhnus juniperi (De Geer). Walker; three slides (5 alate, 

 10 apterous, several immature 99); "juniperi; juniper; Southgate; 

 June 4-47 (also June 25)." Buckton; three slides (2 alate, 7 apterous 



99). 



This is the species described by Del Guercio as Lachniella 

 jnnipcri ( Fabr. ) , ( De Geer first named and described this 

 species 1780), the sensoriation being typical. 



In the alate females secondary sensoria occur as follows, III 6-7, IV 

 2-5, V 1-2; in the aptera IV 1-2. V 1. Antennal measurements of four 

 alates are III 0.316-0.392 (0.364), IV 0.154-0.196 (0.168), V 0.210-0.238 

 (0.224), VI 0.210-0.252 (0.238) mm. The venation is irregular inas- 

 much as although the media is typically twice-branched, in two speci- 

 mens both wings show the media but once-branched. 



This species has been reported by Theobald from Kent and 

 by Jackson from Kent and Scotland. 



12. Dilachnus laricis (Walker). Walker; two slides (2 alate, 3 ap- 

 terous, and 1 immature 99); "laricis; larch; Southgate; July 25-47" 

 (also August 2-47). The aptcrae of this species are very characteristic 

 in that the body is covered with more or less distinct tubercles, these 

 being the most prominent on the front of the head. 



Without doubt this is the same species that Del Guercio 7 

 records from larch at Protolina, Italy, and describes as Lach- 

 niella nigrotuberculata n. sp., tin- body tubercles on tin- apter- 

 ous females being so very characteristic. 



(To be continued.) 



7 Redia, vol. 5, pp. 306-309, 1908. 



