136 MUSCIDyE. 



oblique, slightly undulating, parted by about half its length from the 

 border. Alulae white. Abdomen as long as the thorax, with two 

 Hack spots on the first segment, and three on each of the following 

 segments to the fourth. Male. .Discal transverse vein parted by its 

 length from the praebrachial transverse vein. Abdomen linear.- Jem. 

 Discal transverse vein parted by rather more than its length from the 

 prsebrachial transverse vein. Abdomen elliptical. 

 Generally distributed. (E. S. I.) 



53. canicularis, L. Fn. 1841 (1761); F. ; Gmel. ; Schr. ; Fal. ; 

 Meig. ; Mcq. ; Zett. Cinereo-tomentosa, thorace fusco-quadrivittato, 

 alis subcinereis, abdomine fusiformi lateribus basi testaceo-semipellucidis. 

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



Black, with cinereous tomentum. Head silvery white ; sixth joint 

 of the antennas very minutely pubescent. Thorax with four brown 

 stripes. Wings greyish ; cubital and praebrachial veins slightly diverg- 

 ing along three-fourths of the length from the prsebrachial transverse 

 vein, and thence very slightly converging to the border ; discal trans- 

 verse vein slightly oblique, curved inward in the middle, parted by a 

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

 about half its length from the border. Alula3 whitish. Abdomen sub- 

 fusiform, testaceous and semi-diaphanous towards the base, with the ex- 

 ception of a dorsal stripe which is dilated on the hind borders of the 

 second and third segments. 



Generally distributed. (E. S. I.) 



54. elapsa, n. Cinereo-tomentosa, thorace fusco-quadrivittato, alis 

 sublimpidis, abdomine ovato ceneo-cinereo. Long. 3 ; alar. 6 lin. 



Black, with pale cinereous tomentum. Head white in front and 

 beneath. Thorax with four slender indistinct brownish stripes. Wings 

 nearly limpid ; cubital and prsebrachial veins diverging from the prae- 

 brachial transverse vein to the discal transverse vein, from whence to 

 the border they are nearly parallel, but the cubital is very slightly 

 curved ; discal transverse vein slightly oblique, hardly curved inward, 

 parted by very much more than its length from the praebrachial trans- 

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

 slightly greyish, with testaceous borders. Abdomen oval, with a slight 

 aeneous tinge, a little broader and longer than the thorax. 



Not common. (E.) 



55. desulans, n. Cano-tomentosa, thorace nigro-quadrivittato, 

 alis subcinereis, abdomine ovato. Long. 3 ; alar. 6 lin. 



Black, with hoary tomentum. Head white ; frontalia deep black ; 

 sixth joint of the antennas pubescent. Thorax with four blackish stripes. 

 Wings slightly grey ; cubital and praebrachial veins slightly diverging 

 from the praebrachial transverse vein to the border ; discal transverse 

 vein slightly oblique, hardly curved inward, parted by much more than 

 its length from the praebrachial transverse vein, and by much less than 



