J 50 [December, 



This insect's long antennae are curiously disposed of while the 

 nymph is still enclosed in tlie case. They are neatly wound in a double 

 spiral round the posterior part of the abdomen. Possibly all the long- 

 horned Leptocerid(JB have theirs rolled up in the like manner. 



It appears to me that Diplectrona felix also breeds within my 

 limits, but its larva has hitherto escaped detection. Those caseless 

 larvae are more diiScult to find, and more diificult to rear than case- 

 bearing ones. 



It is not to be thought that these four species exhaust the list of 

 spring-frequenting TrlcJiopiera of even this neighbourhood. I believe, 

 however, they represent the complete Trichopterous fauna of the 

 spring I have had especially in view when writing these notes. 



Carluke, N.B. -. 



October, 1886. 



NOTE ON SOME BRITISH COCCIDM (No. 5). 

 BY J. W. DOUGLAS, F.E.S. 



ASPIDIOTTJS ZONATUS. 



Aspidiotus zonatns, Frauenf., Verhandl. z.-b. Gcsells. Wien, 1868, p. 888. Sign., 



Ess. Cochin., p. 109. 

 Aspidiotus qnercus, Sign., Ess. Cochin., p. 106. 



$ . Scale flat, long-oval, sides somewhat parallel, ends broadly rounded, dingj 

 whitish, the exuvise darker or yellowish, oval, slightly raised, situated towards one 

 end, usually not reaching the sides, of which the margin is in the least degree 

 recurved. The length varies from 1"45 down to 1'075 mm. 



? . Scale whitish, rounded, diam. "50 mm. or less, the insect without abdominal 

 agglomerated spinnerets, according to Signoret. 



(J imago lemon-yellow, wings white. 



On the 27th September last, near here, I found common, close to 

 the ribs on the under-side of the young terminal leaves of short, lateral 

 shoots of a stunted, weather-beaten oak {Quercus robu?'), growing in a 

 very exposed situation, the scales of an Aspidiotus ; and on referring to 

 Signoret's translated description of Frauenfeld's A. zonatus (J. c), an 

 oak feeder, it was seen that these agreed therewith, except as to the 

 length and colour, the former being given as " d'un huitieme de milli- 

 metre," and the latter as " blanchatre, avec une zone entourant la cote." 

 Turning then to Frauenfeld's original description (Z. c), which is 

 illustrated by a figure, I saw that the length is given as 1"8 mm. (i 

 mm. being evidently an error of the translator), and this, though in 

 excess of that of my example, is much, more approximate ; still the 

 discrepancy as to the colour remained. 



