UPON SCALE-INSECTS. 23 



be somewhat longer. Berkeley and Broome's species. N. 

 auranliicola, is described as having multiseptate conidia 

 94/** long, very near the above average for the Ceylon N. 

 cocci dophthora. A smaller variety of conidium is also men- 

 tioned by these authors, only 3-septate and 20/* in length. 

 Such have not been found as a distinct feature of any of the 

 sporodochia examined by me. There is the possibility of 

 these shorter and less septated conidia being immature. 



Ascus-stage. 



The perithecia appear later grouped around the stalks 

 of the old and disappearing sporodochia. Thus both types 

 of fructification may be considered as borne on a feebly 

 developed stroma (fig. 8). As many as seven perithecia have 

 been counted clustered round the stalk or base of a sporo- 

 dochium. They are deep pink nearly spherical bodies 

 with an average diameter of 200-225/*. The ascus is of 

 the usual Nectria pattern (120 x 9/*) (fig. 15). The two- 

 celled oval ascospore measures 12-15 x 7-9/* (fig. 16). 

 The perithecia described by Zimmerman n are very similar. 

 His measurements make the perithecium rather bigser 

 and the ascospore somewhat longer. Those of N. auran- 

 liicola are also very similar, except in colour which is given 

 as orange. 



This Ceylon Nectria has been collected by Mr. Green and 

 the author on five species of coccids belonging to three 

 genera, all included in the Diaspidinese. Further details 

 respecting these specimens are to be gathered from the 

 Table at the end of the paper. 



Till a comparison can be made with fresh examples of 

 the Java species it does not seem at all advisable to make 

 a new species or even variety of this common Ceylon 

 Nectria. My own observations and measurements differ so 

 little from those of Zimmermann that at present I am 



* In their paper Qoc. cif.) the measurements are given in fractions of 

 the inch. They hare been converted into the metric scale for the sake of 

 comparison. 



