DEXIA. 97 



the costal very near its tip ; praebrachial vein forming an obtuse and 

 not sharply defined angle at its flexure, very slightly inclined inward 

 from thence to its tip ; discal transverse vein with two distinct curves, 

 parted from the border by less than its own length. Alulas whitish. 

 Male. Lateralia ferruginous ; third joint of the antennas full twice the 

 length of the second ; sixth more than twice the length of the third ; 

 scutellum ferruginous towards the tip. Abdomen obconical, with 

 hoary reflections ; first, second, and third segments testaceous on each 

 side. Fern. Smaller than the male. Third joint of the antennae full 

 thrice the length of the second ; sixth nearly twice the length of the 

 third. Abdomen subfusiform ; foreborders of the second and third seg- 

 ments with a large white tomentose spot on each side. 

 Not rare. (E.) 



5. rustica, F. S. I. ii. 440. 26 (1781); Gmel.; Meig. ; Mcq.; 

 Zett. Nigra, ciuereo-tomentosa, capite albido, frontalibus atris, latera- 

 libus rufis, palpis pedibusque fulvis, antennis abdomineque testaceis, 

 thorace fusco-quadrivittato, alis subcinereis, venis subnebulosis, vena 

 prcebrachiali ramulum perbrevem ad flexuram emittente apicem versus vix 

 arcuata, abdominis vitta tarsisque nigris. Long. 6 ; alar. 12 lin. 



Fern. Black, with cinereous tomentum. Head with whitish tomen- 

 tum. Frontalia deep black, slightly widening in front ; epistoma not 

 prominent ; lateralia red ; proboscis and palpi tawny. AntennaB testa- 

 ceous, not near reaching the epistoma ; third joint little more than 

 twice the length of the second ; sixth stout at the base, nearly twice 

 the length of the third. Thorax with four brown stripes, the side pair 

 much interrupted. Wings slightly grey; veins indistinctly clouded; 

 costal vein ending at a little in front of the tip of the wing, with a 

 spine at the tip of the subcostal ; subcostal vein ending at beyond one- 

 third of the length ; mediastinal ending at beyond one-half of the 

 length ; radial vein ending at about four-fifths of the length ; cubital 

 vein joining the costal near its tip ; prabrachial vein emitting an ex- 

 tremely short branch, and forming a right angle at its flexure, very 

 slightly inclined inward from thence to its tip ; discal transverse vein 

 with a distinct inward hinder curve, parted by little less than its length 

 from the flexure of the prasbrachial, and by much less from the border. 

 AlulaB whitish. Abdomen testaceous, long-obconical, with a black 

 dorsal stripe. Legs tawny ; tarsi black. 



Not rare. (E.) 



6. vacua, Fal. Act. Holm. (1816); Meig.; Mcq.; Zett. Nigra, 

 cinereo-tomentosa, capite albido, frontalibus atris, lateralibus fulvis, 

 palpis antennis abdomine pedibusque testaceis, thorace quadrivittato, 

 alis cinereis basi albidis, vena praebrachiali ramulum brevem ad flexuram. 

 emittente apicem versus valde arcuata, abdominis vitta fasciis duabus 

 tarsisque nigris. Long. 3J ; alar. 8 lin. 



Black, with cinereous tomentum. Head with whitish tomentum; 

 VOL. n. o 



