Hood—Studies in Tiibuliferous Thysanoptera. 
163 
1910. Liothrips mcconnelH Crawford, romona Coll. Joiirn. Ent., vol. II, 
p. lOd, fig. 68, A-G. 
1911. Cruptothrips californicus Moulton, Tech. Ser. 21, Bur. Ent., U. S. 
Dept. Agr., p. 32, PI. VI, figs. 45, 46. 
1911. Leptothrips aspersus Idem, ibidem. 
1911. Liothrips mcconnelU Idem, ibidem, p. 33. 
1911. Phyllothrlps aspersus I’ub. 4, Midi. Geol. and Biol. Surv., 
p. 213. 
1912. Leptothrips aspersus Back, Ent. News, vol. XXIII, p. 73. 
1912. Leptothrips aspersus Hood, Proc. Biol. Soc. Wash., vol. XXV, 
]i. 62. 
1913. Leptothrips aspersus Hood, Psyche, vol. XX, p. 121. 
1913. Leptothrips aspersus macro-ocellatus IVatson, Ent. News, vol. 
XXIV, p. 148. 
1913. Leptothrips aspersus Morgan, Proc. U. S. Nat. Mus., vol. 46, pp. 
38, 46. 
A study of Fitch’s description of Phlceothrips mali has convinced the 
writer that Leptothrips aspersus (Hinds), with its several synonyms, is 
identical therewith. The description is of a blackish purple Phloeothripid 
on apple, 1.5 mm. in length and oidy one-sixth as broad, with the third 
antennal segment white, and the head longer than wide. Leptothrips 
aspersus agrees perfectly with 'uiali in these several particulars, and, fur¬ 
thermore, is the only known member of its suborder in the United States 
which could possibly be described as “blackish purple” in color. It is 
very common on apple leaves in Illinois, and is the only external feeder 
which I have ever seen on that tree. 
The type of Phlceothrips mali has evidently been lost, and Doctor 
Hinds’ type of Cryptothrips aspersus may properly be considered the 
neoholotype. 
Doctor Fitch’s account of this insect is no doubt inaccessible to most 
Thysanopterists and so is reproduced below: 
In the month of August several apples were noticed upon the trees, 
which were small, withered, and ready to fall, yet without any of those 
worms in them which occasion the destruction of so much fruit at this 
season of the year. Gn searching for the cause of this withering of these 
apples we found a small cavity or little hollow at the tip end, commonly 
close beside the relics of the flower. This cavity had the appearance of 
having been gnawed; it was about the size of a pea, and its surface of a 
black color. Several of these cavities were occupied by a minute slender 
insect; and from appearances I inferred that the young of these insects 
had taken up their residence upon the api>les whilst they were quite 
small and by wounding them slightly day after day, had retarded their 
tfrowth and finally caused them to witlier. It is possible that some other 
msect had originally produced these wounds, and that these which were 
now there had been attracted to the wounds to suck their juices; but 
every appearance indicated tliat these were the real culprits. . . . d his 
which occurs in wounded spots upon young apples, appears to pertain to 
the genus named Phlxothrips by Mr. Haliday, and I propose for it the 
spectfic namie Mali, or the Apple Thrips. •, 
This insect measures only six-hundredths of an inch in length and one- 
