48 iKNIIllil.l'IMl! i . 



22. Ptilia soror. 

 (Plate III. fig. 14.) 



Exp. al. 6 lin., long. Corp. '.\ lin. 



Verj Bimilar to P. pumilio, but twice the size. "Wholly },] 

 except the middle of tin- thorax, which is rufous ; but the scapulae, 

 scutellum, and a large triangular spot in front of the thorax are 

 black. Wings smoky hyaline, with black nervures; darker towards 

 the base of the fore w ings. Third cubital nervure strongly an^ulated 

 outwards on its upper portion. 



Hub. Amazoi 

 a, 2- (Type of species.) Amazons. II. W. Esq. 



Ptilia (?) melanalis. 



Tenthredo melanalis, S -/' rg. Men. Tenthr. y. 11"». a. 136 (1823). 



I hint a analis, Fabr. ;•. l'7. d. l'7 i 1804). 



Hob. South A iiK-i 



27. TOPOTHITA. 



Hylotoma, . <■. Kluff, Ja b. d. I 248 I L834). 



Fore winga with three 3ubmarginaJ cells, tip' second receiving 

 liuth recurrent nervures ipendiculate cell; tibiaa 



unarmed. 



1. Topotrita leucocephal i. 



Il\ ! 



n. A,,,,. 



Hah. Cayenne. 



HEMIDIANEURA. 



Ptili ,2 ■ i 



i 1867). 

 Hylotoi 240 



Wings with oi 

 cells: the first recurrent nervun 

 second Bubmarginal cell ; 1 



the junction of the second and third submar lis. Antennae 



3-jointed, first two joints very short : third joint bifui 

 in the males, simp] 



1. Heinidianeura filifonnis. 

 Ptilia filiformis, Kort. 

 Hub. Mexico. 

 a. 2- NI ' V "-'He. 



