68 THE CANADIAN ENTOMOLOGIST. 



Thomas, and we therefore propose for it tlie name of Lachnus ausiraii, 

 and submit the following description : 



Lachnus australi, n. sp. 



Wingless ^ : Length .08 to .16 of an inch. Uniform light brown ; 

 head small, eyes large and round, bulging out on each side ; beak 

 extremely long and slender, reaching to last ventral segment ; antennae 

 six-jointed, reaching to hinder part of thorax ; joints i and 2 bead-like ; 

 3rd longest, widest at apex ; thorax twice as wide at hinder part as head ; 

 abdomen very broad, wider than long, with numerous black spots on top, 

 arranged in transverse rows ; nectaries black, tuberculous, nearly obso- 

 lete ; legs very long, setaceous and black, excepting basal third of tibiae, 

 which are yellowish. 



Wi?tged individual ^ : Blackish, length .08 to .10 of an inch ; ala. 

 expanse about .35 of an inch. Head black, punctate, outer margin pale 

 yellowish ; prothorax dark brown or blackish, greenish yellow along suture 

 next the head ; antennre short, reaching below middle of thorax ; meso- 

 thorax is beautifully marked with pruinose bands, starting from each corner 

 of scutellum, which is transverse and pruinose ; they curve inwards and 

 meet on top of mesothorax, forming one band which runs straight for- 

 wards, dividing again obliquely into two bands to juncture with 

 prothorax ; two dots of pruinose on either side of this band ; wings 

 hyaline, front pair with a very long, thick stigma, with the third vein 

 remarkably thin and three-branched ; hind wings with two oblique veins ; 

 abdomen with a dorsal row of whitish or pruinose spots on 5 abdominal 

 segments, also along each side, and 12 brownish subdorsal round spots ; 

 under surface uniformly pruinose ; legs black, excepting tibiae, which are 

 partly yellowish ; beak long, reaching to last ventral segment, pale in color 

 to near the tip, which is black. 



ENEMIES. 



We have bred from this species three ichneumon flies, two belonging 

 to the Aphididae family and one to the Chalcidida;, which we shall 

 describe in a future paper. 



