v. ESBEN-PETERSEN, NEUROPTERA AND MECOPTERA. 21 



in the apical half part. This line is also present in the hind- 

 wings; one row of cells in the area between M2a. and the 

 line. 



Body 26 mm; forewing 27 mm; hindwing 26 mm. 



One specimen from Kimberley district, N. W. Australia, 

 February. 



Myrmeleon loweri Tillyard, Proc. Linn. Soc. N. S. Wales, 

 p. 65, pl. 6, fig. 15, 1916. — One immature specimen present 

 from Kimberley district, N. W. Australia, April. 



This species may probably be the same as M. crocei- 

 collis Gerst. ; but as long as I know the species of Ger- 

 STAECKER only from the description, I should not like to say 

 anything about the question. 



Myrmeleon croceus, Myrm. loweri Till. and Myrm. nigro- 

 marginatus Esb.-P. form a very interesting and rather homo- 

 geneous group as to the shape of wings and to the strongly 

 yellowish colour of wings and of part of body. Common 

 characters are the blackish C and the blackish apical part of 

 hind margin of the wings; likewise the yellowish coloured 

 nervature. Their head, thorax and sometimes also abdomen 

 are more or less yellowish coloured and with blackish mar- 

 kings; but the markings are liable to vary. 



Below I give a single character in tabular form. 



1. Two rows of cells in the apical half part of the area be- 

 tween ilf2a and posterior Banksian line in hindwing, in the 

 basal half part one row nigromarginatus. 



— In the same area only one row of cells 2. 



2. Two rows of cells in the apical half part of the area be- 

 tween Cu\2, and posterior Banksian line in forewing, one 

 row in the basal half part loweri. 



— Three rows of cells in the apical half part of the area 

 between Ct^ia and posterior Banksian line in forewing, two 

 rows in the basal half part croceus. 



Callistoleon erythrocephalus (pl. 3, fig. 2). Leach, Zool. 

 Miscell. I, p. 70, pl. 30, 1814. — Of this species four speci- 

 mens were present, all from Queensland. 2 J^J^ from Her- 

 berton, 1 ^ from Atherton, and 1 J^ from Lamington Plåt. 



