Pomona ('oi-i;K(ii'; Journal op Entomology 



765 



— nearly as \im^ as lii-dad, yellow. I'Ji/is — Lar^c, tiiiier-culatc, hrifjlit i-ardiiial 

 I'cd. .[iiliiiiKie — (Figure 1-4). Nearly as long as the body, reaching to, or 

 nearly to the bases of the eornieles; on slight frontal tiii)ereles; with few or 

 no hairs; apical hall' iiiibrieateil ; articles I and II color of the liead. Ill trans- 

 |iai'ently white with apical half dark, VI transi)arently white with apical third 

 dark, V white with apic;d half dark, Vi white with apical [lart of the base and 

 apical half of the sfjiir dark. The sensoria are large, circular and arranged in 

 a single row on III, and normal nuiiibcr on V and VI. On III there are from 

 4 to 6 (usually 4 or 5), all of which are more often conline<l to the apical half. 



Figure 243. Myzocallis alni (Fab.) Passerini 

 A, winged viviiiarous female; B, apterous viviparous female: 1, antenna of winged 

 female: 3-5, third-antennal articles of winged females showing the arrangement 

 of the seiisoria; 6, cornicle of winged female; 7, cornicle of apterous female: 8, 

 tarsi and chiws of apterous female: 9, anal plate of winged female; 10, style of 

 winged female; 11 and 12, anal plate and style of apterous female: 13, antenna of 

 apterous female. 



The areas around the lower two are darker than the surrounding areas. The 

 lengths of the articles are as follows: I, 0.045 mm.; II, 0.045 mm.; Ill, 0.35 

 mm.; IV, 0.1!) nun.; V, 0.16 nnn.; VI, 0.168 nun. (base 0.09 mm., spur 0.078 

 mm.) ; total (I.DSS mm. 1 and II are about equal, III is by far the longest, 

 being equal or nearly e(pial to IV and V together. The niea.surements of the 

 articles as given are less than those given by Davis,* but the comparative 



*Jr. Ec. Ent. Ill, p. 416. 1910 



