19G MYTTLASPIS POMORUM. 



Formula of fifteen examples from apple : 



57888 



1517 . 1313 . 1313 . 1515 . 1419 



1012 . 11-- 9 . 1210 . 1416 . 1213 



8 8 9 10 10 



1517 . 1717 . 1113 . 911 . 1411 



g_13 . 1214 . 1012 . 14^12 . 1310 



10 10 11 12 13 



1411 . 17 1C . 1513 . 1517 . 917 



1310 . 1512 . 14 9 . 1012 . 12 8 



Formula of six examples from Cassia (under glass) : 



9 9 10 10 



1G 12 . 1817 . 1723 . 1815 



1114 . 1612 . 1812 . 14 is 



11 12 



1920 . 1717 



1312 . 1411 



Dorsal tubular spinnerets, small and cylindrical, are 

 arranged in three series: the first, opposite the In 1 mil 

 ventral glands, form a long scattered band trrniinatiiig 

 near the anus ; intermediate series in a single row l'< H-m- 

 ing an incomplete arch, with nn outward lateral scries 

 extending from the middle almost to the margin; thin I 

 series following the articulation of the pygidium with 

 the segment. On each side of median lobes nlouo- 

 the margin (PI. XXVII, fig. 5) are six large tubular 

 spinnerets, of which the second and third, and fourth 

 and fifth are arranged in pairs. Anus a little in front 

 of the anterior group of ventral glands. Vaginal 

 opening almost central. Median lobes almost as broad 

 again as long ; lateral margins usually straight ; pos- 

 terior margin centrally lobate, with one or two note-lies 

 on either side. Second and third pairs of lobes small, 

 almost touching, have their margins rounded and 

 entire, or bluntly and irregularly dentate. Plates long 

 and spine-like, usually one median and four lateral pai rs. 



Male puparium narrowly elongate, sides almost 



