MYTILASPIS FICUS. 203 



a single row as in M. pinna&formis. Anterior laterals 

 from 8 to 14; posterior laterals from 7 to 9. 

 Formula of three examples : 



5 45 



1410 . 119 . 98 

 7 8 . 79 . 66 



Dorsal tubular spinnerets in three series ; subdorsal 

 group consists usually of 8 9, arranged in an inter- 

 rupted line ; the intermediate series consists of about 

 the same number, form two distinct groups, the lesser 

 group being nearest the margin ; the anterior group 

 extends within the preceding segment. There are 

 also a series of marginal tubular spinnerets of the same 

 character and arrangement as in M.pomorum; but there 

 are four additional long, slender, tubular spinnerets 

 on each side of the meson, which afford an excellent 

 character for separating this species from its allies ; 

 the median pair are connected at the margin with the 

 minute plates, as also are the next pair with the 

 second pair of plates. Anus and vaginal opening as 

 in the preceding species. Median lobes (PL XXVII, 

 fig. 7) large ; lateral margins short and straight ; pos- 

 terior margin outwardly strongly bidentate, inwardly 

 with a single notch, subcentrally lobate ; second and 

 third pairs rudimentary. Plates in five pairs, of which 

 the median and second pairs are very small. Dorsal 

 median spines long and stout, and there is one of a 

 similar character betAveen the second and third lobes. 



Puparium of the male is said to resemble that of the 

 female, but is smaller and whiter. 



Habitat. Mr. Morgan (Ent. Mo. Mag., 1890, p. 230) 

 says, " I received this species from Mr. Douglas, who 

 received it from the Royal Horticultural Society's 

 Gardens at Chiswick, where it was found on fig trees 

 imported from the south of France fifteen years ago, 

 and kept in pots under glass ; the scales were at one 

 time abundant, but careful treatment in brushing and 

 washing them off has nearly extirpated them." My 



