in the Collection of W. W. Saunders, Esq. 297 



in front and beneath ; frontalia i\ee]-> Mack, widening in front ; 

 facialia without bristles ; epistoma hardly prominent ; palpi black ; 

 antennae black, not reaching the epistoma; third joint ferruginous 

 at the base, convex above, rounded at the tip, a little longer than 

 the second ; arista stout for nearly half its length ; scutellum with 

 very long stout bristles ; abdomen with two spines in the middle 

 and many towards the tip ; legs stout, black ; wines dark grey, 

 with a blackish spot near the base ; veins black ; praebrachial 

 transverse vein clouded with black ; praebrachial vein forming 

 a right angle, very slightly curved from thence to its tip, which 

 is somewhat in front of the tip of the wing; discal transverse 

 vein hardly undulating, parted by a little less than its length from 

 the border, and by hardly more than half its length from the 

 flexure of the praebrachial ; alulae blackish. 



Length of the body 4^ lines; of the wings 9 lines. 



Mexico. 



Genus Nemor;EA, Desv. 



Nemorcca intrita. 



JVew!. — Nigra, robusta, pilosa, capita albido-testaceo, frontalibus 

 piceis, palpis fulvis clavatis, antennarum articulo 3° obtuso, 

 arista valida, thorace cinereo non vittato, abdomine nitente, 

 alis obscure cinereis, vena praebrachiali angulum rectum fin- 

 gente, vena transversa discali subrecta, aluiis nigricantibus. 



Female. — Black, stout, pilose : head wdiitish testaceous, cine- 

 reous above; frontalia piceous ; facialia without bristles; epistoma 

 rather prominent ; palpi tawny, clavate ; antennae nearly extending 

 to the epistoma ; third joint obtuse at the tip, a little longer and 

 broader than the second ; arista stout, gradually tapering, very 

 much longer than the tiiird joint ; thorax with cinereous tomentum, 

 not striped; scutellum with very long bristles; abdomen shining, 

 spinose towards the tip ; wings dark grey, blackish towards the 

 base ; veins black ; praebrachial vein forming a right angle at its 

 flexure, near which it is slightly curved, and is thence straight to 

 its tip, which is at some distance in front of the tip of the wing; 

 discal transverse vein nearly straight, parted by much less than its 

 length from the bordrr, and by little more than half its length 

 from the flexure of the praebrachial ; alulae blackish. 



Length of the body 5 lines; of the wings 10 lines. 



Mexico. 



VOL. V. N. S. PART VIII. FEB. 1861. 



