. Bulletin. Natural history; Natural history. 362 'ciis Naiikai. 1IIS^I>K^• Si kvia \'(.l. 2'K Art. 1 Prothorax with scattered dorsal se- tae, with only two pairs of posterior setae between the major epimeral se- tae. Fore tarsi each with an apical tooth. Fore wings with three, four, or five distal setae on fore vein. Abdominal sternites without acces- sory setae in addition to posterior ones. Abdominal tergite VIII with posterior comb complete. Abdominal tergite X split for about one-half its length. Male.—Not in North America; present in Europe (Bagnall 19096; Williams
. Bulletin. Natural history; Natural history. 362 'ciis Naiikai. 1IIS^I>K^• Si kvia \'(.l. 2'K Art. 1 Prothorax with scattered dorsal se- tae, with only two pairs of posterior setae between the major epimeral se- tae. Fore tarsi each with an apical tooth. Fore wings with three, four, or five distal setae on fore vein. Abdominal sternites without acces- sory setae in addition to posterior ones. Abdominal tergite VIII with posterior comb complete. Abdominal tergite X split for about one-half its length. Male.—Not in North America; present in Europe (Bagnall 19096; Williams 1916). To the good fortune of our orchard- ists, this pest has not yet reached Illi- nois. The pear thrips, a native of Europe, was introduced as early as 1904 to California and probably later on the East Coast. Either this thrips spreads extremely slowly or there is a biological barrier in the Midwest that prevents its entry here. In America the pear thrips repro- duces entirely by parthenogenesis, since only the female was imported. After a brief but destructive foray on the blossoms and young fruits, the larvae drop to the ground and form pupal cells in the soil. For the next 10 months the larvae, which later change to prepupal and pupal forms, remain hidden in the soil. Then in the spring the pupae transmute and the resultant adults emerge to lay eggs and start the cycle again. Taeniothrips simplex (Morison) Gladiolus Thrips Physothrips simplex Morison (1930a: 12). 9. Type-locality.—Urrbrae, South Australia. Taeniothrips gladioli Moulton and Steinweden (1931:20). 9, cf. Type- locality.—Vineland Station, Ontario, Canada. Synonymized by Steele (1935). Female (macropterous).—Length distended over mm. General color dark brown except antennal segment III and tarsi which are yellowish brown. Fore wings brown except basal portion which is white. Ocellar pig- ment red. Body with yellow to orange subintegumental pigment. Head not elongate or especially bulged (Fig. 13
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Keywords: ., booka, bookcentury1900, bookdecade1910, booksubjectnaturalhistory
