138 PERLIDES. 



Genus 1. KOLLARIA. 



Palpi setacei. Alae reticulatge. Maxillae capite longioies. 

 Palpi maxillares longissimi. 



Kollaria, Pictet, Hist. Nat. Perl. 114. 



Maxillary palpi very long and slender: mandibles small: 

 maxillae formed of two processes ; one internal, small, slender, ter- 

 minated by three bristles ; the other external, large, curved, longer 

 than the head, dentated at the tip : labium very slender : wings 

 large, strongly reticulated over nearly the whole surface : tail- 

 bristles long. 



1. Kollaria insignis. 

 Kollaria insignis, Pictet, Hist. Nat. Neur. Perl. 123, pi. 4. 



Genus 2. EUSTHENIA. 



Palpi setacei. Alae reticulatae. Maxillse mediocres, capite 

 breviores. Palpi maxillares mediocres, non dilatali, articulis lo et 

 2o brevissimis. 



Eusthenia, Westw. ; Gray, Griff. Anim. Kingd. xv. 348, pi. 72, f. 4. 



Maxillary palpi of moderate length ; their 1st and 2nd joints 

 very short ; 3rd and 4th lung, not dilated ; 5th ovate, straight : 

 mandibles of moderate length : maxillae large, not altogether ex- 

 lending beyond the mouth: wings large, strongly reticulated over 

 nearly the whole surface ; 8th abdominal segment "furnished beneath 

 in the female with a large median and slightly recurved prolonga- 

 tion : tail-bristles long. 



1. Eusthenia spectabilis. 



Eusthenia spectabilis (Westw. 3ISS.), Gray, Griff. Anim. Kingd. 

 X. 348, pi. 72, f. 4. Pictet, Hist. Nat. Neur. Perl. 139, pi. o, 

 f. 1—5. 



a. New Holland. Presented by the Entomological Club. 



b. Van Dieman's Land. Presented by R. Butler, Esq. 



c. Van Dieman's Land. Presented by R. T. Ewing, Esq. 



d. New Holland. From the Rev. J. Wenham's collection. 



e. Van. Dieman's Land. From Mr. Westwood's collection. 

 /. Van Dieman's Land. From Lieut. Ross's collection. 



