LECANIUM HEMISPH/ERICUM. 117 



dorsal carinae, but smaller. The " whitish dots " men- 

 tioned by Douglas (1. c.) in his diagnosis of L. beaumontise 

 are secretionary, and are characteristic of the species, 

 but are rarely retained in old adults. Types of this 

 form, kindly given to me by Mr. Douglas, are small 

 and stunted, looking as if the food-supply had been in 

 some way suddenly checked, and hence the retention 

 of the strong " transverse ridges ; " or the examples 

 may have been young adults. 



. Form " broad-oval, very convex, . . . sides more 

 or less straight, margin not extended and flattened, 

 except anteriorly as far back as the region of the 

 primary lateral ridges, where it is greatly produced, 

 clypeiform, in some examples to an obtuse point, 

 mostly slightly recurved at the edge, and rough with 

 strong punctures ; sometimes also with a rough longi- 

 tudinal carina. Viewed from the side, the scale, in 

 the region of the previous dorsal carina, is more or less 

 level, but it then curves somewhat suddenly both to 

 the front and back." This is the description given by 

 Douglas (I.e.) of his L. dypeatum (figs. 1 c, 1 d). An 

 examination of the author's types shows no deviation 

 in the structural details from typical L. hemisphdericum. 



Parasitised examples (figs. 7, 8). In these the form 

 of the female is not appreciably changed, but the 

 colour is more or less black, especially on the dorsum 

 and towards the margins, while the immature examples 

 are often of a beautiful pale mauve (fig. 8). 



Puparium of male (fig. 10) very elongate, narrow, 

 with the extremities equally rounded ; dorsal carinaB 

 forming the coronet narrowly separated, the enclosed 

 space with a central series of angular projections ; 

 lateral carinae in three pairs, anterior pair slightly 

 curved outwards, with the ends almost reaching the 

 anterior margin ; second pair slightly anterior to the 

 centre ; posterior pair about midway between the latter 

 and the anal margin. 



Long, 1"25 mm. 



Male light orange-red or coral-red, with darker 



