130 MUSCID.E. 



34. tetrastigma, Meig. Zw. v. 120. 66 (1826). Cano-tomentosa, 

 thorace nigro-quadrivittato, alls cinereis, venis tramversis infuscatis, ab- 

 domine longi-obconico cinereo-tomentoso nigro-quadrimaculato, pedibus 

 fulvis, femoribus anticis et tarsis nigris. Long. 3|-4 ; alar. 7-8 lin. 



Black, with hoary tomentum. Head white. Thorax with four blackish 

 stripes. Wings grey ; transverse veins clouded with brown ; cubital and 

 prsebrachial veins slightly diverging from the preebrachial transverse 

 vein to the border ; discal transverse vein slightly oblique, a little curved 

 inward, parted by hardly its length from, the prsebrachial transverse 

 vein, and by much less than its length from the border. Alula3 white. 

 Abdomen long-obconical, with cinereous tomentum, a little longer and 

 narrower than the thorax ; second and third segments with two black 

 spots on each. Legs tawny ; tarsi and fore femora black. 



Not common. (E.) 



35. transiens, n. Obscure tomentosa, capite cano, alis fuscis, 

 abdomine nitente, pedibus obscure fulvis, tarsis nigris. Long. 2^ ; alar. 

 5 lin. 



Black, with dark grey tomentum. Head hoary. Wings dark brown ; 

 cubital and prsebrachial veins slightly diverging from the prsebrachial 

 transverse vein to the border ; discal transverse vein slightly oblique, 

 nearly straight, parted by nearly its length from the prsebrachial trans- 

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

 Alulse grey. Abdomen shining, nearly elliptical, a little longer but not 

 broader than the thorax. Legs dark tawny, slender, with very few 

 bristles ; tarsi black. 



Not common. (E). 



36. quadruxn, F. S. A. 297. 67 (1805); Meig.; Mcq. ; Zett. 

 subpuncta, Fal. dispar, Desv. Cinereo-tomentosa, thorace nigro- 

 quadrivittato, alis subcinereis, abdomine ovato nigro-quadrimaculato, 

 femoribus apice tibiisque runs. Long. 2|-3 ; alar. 5-6 lin. 



Black, with pale cinereous tomentum. Head whitish. Thorax with 

 four blackish stripes. Wings greyish ; cubital and prsebrachial veins 

 slightly diverging from the prsebrachial transverse vein to the border ; 

 discal transverse vein slightly oblique, very slightly undulating, parted 

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

 and by a little less than its length from the border. Alulse white. 

 Abdomen oval, as long and as broad as the thorax ; second and third 

 segments with two black spots on each. Tibise and tips of the femora 

 red ; posterior femora red for one-fourth of the length from the tips. 



Common. (E. S. I.) 



37. impulsa, n. Pallide cinereo-tomentosa, thorace nigro-quadri- 

 vittato, alis subcinereis, venis transversis sat approximatis, abdomine longi- 

 ovato nigro-quadrimaculato, femoribus apice tibiisque runs. Long. 3 ; 

 alar. 6 lin. 



Black, with pale cinereous tomentum. Head whitish. Thorax with 



