SIGNORETIA LUZULJE. 29 



last three abdominal segments bears a single tubercle 

 at the margin, of which the central one is much the 

 largest, the smaller ones being imperceptible in some 

 of the mounted specimens. Stylus or genital sheath 

 very short, flat, and obtusely pointed at the apex. 

 Dermis forming the genge, and transverse band which 

 connects them, finely reticulated ; thorax with a few 

 fine, scattered hairs, and there is a row of widely 

 separated hairs along the margins of the abdominal 

 segments. 



Long, 1 mm. 



Puparium of the male (figs. 1 c? and 12) glassy, 

 semi-opaque, white, elongate, sides almost parallel, low 

 convex above, with a faint central carina ; there is also 

 a faint curved carina in front, arising from each of the 

 anterior spiracular areas, and at about the same dis- 

 tance from the posterior extremity is another carina 

 which is more sharply defined, and gives the puparium 

 the appearance of being hinged at this point ; sides 

 perpendicular, or slightly sloping inwards, highest in 

 front, and terminating just beyond the posterior trans- 

 verse carina. Anal cleft as in Lecanium. 



Long, 1 mm. 



Second-stage male (fig. 11), immediately prior to 

 the formation of the puparium, very elongate, sides 

 parallel, ends equally rounded ; margins slightly con- 

 stricted at the stigmatic openings ; yellow, or greenish 

 yellow, with two broad subdorsal bands of crimson 

 formed of small, and more or less confluent spots, 

 interrupted by five transverse bands of the ground 

 colour, extending from the central greenish-yellow 

 carinae. 



Long, 1 mm. 



Habitat. This species is apparently confined to the 

 field wood-rush (Luzula campestris) , and loves a shaded 

 and rather moist situation. 



I have found it abundant on a high sloping embank r 

 ment, having a north aspect, at Ince, Cheshire, where I 

 discovered it for the first time in this country in May, 



