124 MUSGID.E. 



nescente-tomentosa, thorace nigro-quadrivittato, alls cinereis, maris basi 

 et antice vix fuscescentibus, abdomine cinereo nigro-quadrimaculato. 

 Long. 2-i-3; alar. 5-6 lin. 



Black, with grey tomentum. Head hoary. Thorax with four black 

 stripes. Wings grey, of the male very slightly brownish at the base and 

 in front ; cubital and prsebrachial veins slightly diverging from the 

 prsebrachial transverse vein to the border ; discal transverse vein ob- 

 lique, slightly undulating, parted by hardly more than its length from 

 the prsebrachial transverse vein, and by less than its length from the 

 border. AlulaB grey, with testaceous borders. Abdomen long-obco- 

 nical, with cinereous tomentum, as long as the thorax ; second and 

 third segments with two black spots on each. 



Common. (E.) 



17. pallida,r.E.S.iv.320.33(1792); Gmel.; Fal.; Meig.; Mcq. ; 

 Zett. testacea, D. G. Testacea, antennis articulo tertio apice fusco, 

 alis subcinereis, tarsis nigris. Long. 2-^-3 ; alar. 5-6 lin. 



Testaceous. Head whitish in front ; third joint of the antenna 

 brownish at the tip. Wings slightly grey; cubital and prsebrachial 

 veins diverging from the praBbrachial transverse vein to the border; 

 discal transverse vein slightly oblique, very slightly undulating, parted 

 by a little more than its length from the praebrachial transverse vein, 

 and by less than its length from the border. Alulas whitish, with pale 

 testaceous borders. Abdomen subelliptical, as long and as broad as 

 the thorax. Tarsi black. Male. Discal transverse vein parted by about 

 its length or a little less from the prasbrachial transverse vein, and 

 by a little less than its length from the border. Far. Thorax with 

 three short brown stripes. Wings slightly testaceous at the base and 

 in front. 



Not rare. (E.) 



18. Populi, Meig. Zw. v. 115. 55 (1826); Mcq.; Zeit.pallida 

 var., Fal. Nigra, canescente-tomentosa, palpis testaceis, thorace nigro- 

 quadrivittato, humeris scutello abdomine pedibusque fulvis, alis subci- 

 nereis basi subluridis, venis cubitali et prabrachiali apices versus diver- 

 gentibus, vena prcelrachiali transversa non nebulosa, tarsis nigris. Long. 

 3-3 J; alar. 6-7 lin. 



Black, with grey tomentum. Head white. Palpi testaceous. Thorax 

 with four black stripes. Humeri and scutellum tawny. Wings slightly 

 grey, pale lurid at the base ; cubital and prcebrachial veins slightly di- 

 verging from the unclouded prccbrachial transverse vein to the border ; 

 discal transverse vein clouded with pale brown, a little oblique, slightly 

 undulating, parted by almost its length from the prtsbrachial transverse 

 vein, and by little more than half its length from the border. Alula3 

 whitish, with pale testaceous borders. Abdomen tawny, subelliptical, 

 as long and as broad as the thorax. Legs tawny ; tarsi black. 



Common. (E.) 



