in the Collection of W. W. Saunders, Esq. 299 



stripes ; sides and pectus cinereous ; abdomen longer than the 

 thorax, with a broad cinereous band on the fore-border of each 

 segment; two spines on the disk and a few towards the tip; legs 

 stout, setose; wings greyish, a little darker at the base and along 

 the costa ; veins black ; praebrachial vein forming a right angle 

 at its flexure, hardly curved from thence to its lip, which is much 

 in front of the tip of the wing; discal transverse vein almost 

 straight, parted by much more than iialf its length from the 

 border, and by a little more than half its length from the flexure 

 of the praebrachial ; alulae whitish. 



Length of the body 5 lines ; of the wings 8 lines. 

 Mexico. 



Earigaster desita. 



Fcem. — Nigra, robusta,setosa,cinereo-tomentosa,capiteargenteo, 



frontalibus piceis, p dpis fulvis, antennarum articulo 3° lon- 



gissimo, abdominis apice aurato, pedibus validis, alis alulisque 



nigro-cinereis. 



Female. — Black, stout, setose, slightly covered with cinereous 



tomentum : head silvery-white, with the exception of the vertex ; 



frontalia pictous; facialia bristly along most of the length; palpi 



tawny; antennae extending to the epistoma, which is very slightly 



prominent; third joint six times longer than the second; arista 



stout, slightly tapering, a little longer than the third joint; scu- 



tellum with many long stout bristles ; abdomen pale, gilded at the 



tip; legs stout; wings and alulae blackish-grey; veins black; 



praebrachial vein forming a right angle at its flexure, slightly 



curved from thence to its tip, which is at a little in front of the 



tip of the wing ; discal transverse vein forming an obtuse angle 



near its base, straight from thence to its tip, parted by half its 



length from the border, and from the flexure of the praebrachial. 



Length of the body 4| lines ; of the wings 8^ lines. 



Mexico. 



Eurigasler commetans. 

 Fcem. — Nigra, robusta, capite aurato, frontalibus atris, palpis 

 fulvis, antennarum articulo 2° rufescente, 3° longo apice 

 rotundato, aristae triente basali valido, thorace sub-aurato 

 vittis quinque nigris, pectore cinereo, abdomine sub-aurato, 

 basi et segmentorum marginibus nigris, alis cinereis, costd 

 strigisque apud venas obscuiioribus, vena praebrachiali an- 

 gulum obtusum fingente, vend discali transversa angulum 

 obtusum fingente, alulis obscure cinereis. 

 Female. — Black, stout, slightly setose : head gilded, paler be- 



X 2 



