I . t<. 1). A., B. E. Tech. Ser. 12, Pt. IV. Issued July 12, 1907. 



MISCELLANEOUS PAPERS. 



NEW GENERA AND SPECIES OF APHELININ^, WITH A REVISED 



TABLE OF GENERA. 



Bv L. <). Howard. I'li. I). 



INTRODUCTION. 



Technical Series, No. 1, published in June, 1805, comprised a con- 

 sideration of the Aphelinina^ of North America, together with some 

 mention of the insects of this group found in other parts of the 

 world. In that publication the species of thirteen genera were con- 

 sidered, and twenty-six species were described. The economic im- 

 portance of the groujD was pointed out and tables of host relations 

 were printed. It was shown that economically these minute para- 

 sites are by far the most important of the parasites of the Diaspin*. 

 and in the twelve years that have elapsed since the publication of 

 the bulletin their economic importance has become even more evident. 

 It is claimed in California that the San Jose scale is held in subjec- 

 tion by these creatures, and in point of fact observations by Johnson 

 and others in the East have shown that under certain conditions 

 ApJielinus fuscipennis How. may multiply to such an extent as to 

 produce a very high percentage of parasitism of this scale isect. 

 Whether these parasites in the eastern United States wdll ever become 

 as etfective as in California, however, seems doubtful, on account of 

 the longer breeding season on the Pacific coast, and as a matter of 

 fact the opportunity to test the question does not exist, so universal 

 and so eifective has become the use of the lime-sulphur sjirays in the 

 ea.stern States. 



In the twelve years since the publication of Technical Series, No. 1, 

 many different species of Aphelinina^ have been reared in one part 

 of the world or another, and most of them have been referred to the 

 writer for study. Very few, however, have been described; these 

 are as follows: 



^lyioeneniu (n. g. ) pallidu Ashnie;ul. ("anndian Entomologist. XXXII. No. 11, 

 Nov., 1900, p. 349. Reared by A. Craw from Saissetia olew Bernard 

 {Lccaiiium oica), collected by Geo. Compere, Brisbane. Queensland. 



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