448 Mr, F. Smith on neio Species | 



margin of the second segment ferruginous ; the apical segment 

 white. 



Eab. Para. 



Agenia reversa. 



Female. Length 3| lines. Ferruginous, with the anterior 

 wings, beyond the second submarginal cell, dark brown. 

 Head rather wider than the thorax ; the three basal joints, and 

 a portion of the fourth, of the antennae ferruginous, the rest 

 black ; the joints of the antennje widest at their base, most 

 obviously so when viewed on the underside ; the scape of the 

 antennae beneath, the lower portion of the inner orbits of the 

 eyes, the clypeus, labrum, mandibles, and palpi white. 

 Thorax : the prothorax transverse, narrow, and very slightly 

 curved ; the anterior coxa3 white beneath ; the posterior tarsi 

 fuscous. Abdomen narrow, and acuminate both at the base 

 and the apex. 



Hob. Para. 



This species is very remarkable in having the base of the 

 antennal joints wider than their apex ; in this paiiicular it 

 agrees with the male of the British and European species, 

 Agenia variegata. 



Agenia gracilenta. 



Male. Length 3 lines. Black, covered with hoary pile; 

 wings hyaline ; the base of the second segment of the abdomen 

 yellow. Head : the mandibles and palpi pale testaceous ; a line 

 on the scape of the antennae and the third joint yellow beneath ; 

 three or four of the following joints obscurely ferruginous. 

 The posterior margin of the prothorax arcuate ; the anterior 

 femora in front, the tibite and tarsi, the tips of the inter- 

 mediate femora, and the tibiae nifo-testaceous ; the calcaria at 

 the apex of all the tibijB white ; wings hyaline and iridescent, 

 their tegulae testaceous, the nervures fuscous ; a faint cloud in 

 the second submarginal cell, and extending over the apical 

 portion of the third discoidal one ; there is also a slight fuscous 

 stain at the apex of the extemo-median cell. The first segment 

 of the abdomen forming a petiole, which is pale beneath. 



Hob. Para. 



Agenia modesta. 

 Male. Length 3i lines. Black, the legs variegated with 

 white ; the abdomen fuscous at the base, and with a wliite 

 fascia, which covers the apical margin of the first segment 

 very narrowly, and a broader portion of the base of the second 

 segment ] the apical segment also white. Head : the scape 



