LIST OF IIOMOPIEUOUS INSECTS. 5til 



length of the head : fore-chest roughly punctured, indistinctly 

 ridged, slightly flattened and almost triangular in front, keeled be- 

 liind the shoulders, wliich are slightly prominent and very obtusely 

 angular ; keel slightly concave and with a semicircular furrow on 

 each side, where there are a few black spots, concave beneath and 

 attenuated towards the lip, which is acute and extends beyond the 

 tip of the abdomen : breast and abdomen partly pitchy : oviduct 

 luteous, pitchy towards the base : legs tawny : wings colourless ; 

 veins yellow : fore-wings slightly marked with black towards the 

 base, which is punctured ; two discoidal areolets. Length of the 

 body 3 lines ; of the wings 7 lines. 



o. Mexico. Presented by E. P. Coffin, Esq. 



16. Thelia semifascia, Mas et Fem. , 



Mas. Flava, fusco-bifasciata ; pectus et abdomen nigra ; femora 

 supra nigra ; alar limpida ; alee antic/e baxi fulvte, apice 

 fiiscte. Fem. Carina luteo et albido fasciatu ; pectus, abdo- 

 men et femora fulva. 



Verj' near allied to T. tumida. Male. Yellow : head and fore- 

 chest shining : head punctured, transverse, almost triangular, nar- 

 rower than the fore-chest, slightly undulating along the sides, 

 somewhat impressed on each side ; hind border of the face almost 

 semicircular, occupying much less than half the length of the head : 

 fore-chest convex, slightly ridged in front, keeled behind the 

 shoulders, which are rounded and hardly prominent ; keel slightly 

 undulating on each side, with two broad, irregular brown bands, 

 not attenuated, but embracing the sides of the abdomen and ex- 

 tending far beyond its tip : breast and abdomen black, tip of the 

 latter ferruginous : thighs black above : wings colourless ; veins 

 tawny : fore-wings tawny at the base, punctured at the base and 

 along the veins to the disk, brown at the tips and on the hind 

 border at the base ; two discoidal areolets. 



Fem. Keel with alternate luteous and whitish bands ; breast, 

 abdomen and tliighs tawny. 



Length of the body 2i lines ; oi the wings 6 lines. 

 a—d. St. John's Bluff, E. Florida. Presented by E. Doubleday, 



2 D 



