90 BULLETIN 536, U. S. DEPARTMENT OF AGRICULTURE. 



collected in the fruits of Chrysobalanus on August 2-3, 1912, at 

 Dakar, Senegal. Silvestri later reared specimens from C. giffardi and 

 0. tritea at Olokomeji, Southern Nigeria, and from C. giffardi at 

 Kokoulima, French Guinea. He was also able to rear this parasite 

 at Dakar from pupae formed by larvae of C. giffardi parasitized ex- 

 perimentally during the period September 6 to 8, 1912. He was 

 unable, however, to arrive at Honolulu with living specimens and it 

 remained for the Fullaway-Bridwell expedition of 1914 successfully to 

 introduce D. fullawayi into Hawaii from Olokomeji via Teneriffe, 

 Habana, and the southern United States. Fullaway arrived at Hono- 

 lulu on October 27, 1914, with 12 female and 19 male specimens. 

 These had multiplied in the laboratory to 419 females and 1,000 males 

 by December 31, and of this number 35 and 160 specimens were 

 liberated during December at Maunawili, Oahu, and Kona, Hawaii, 



respectively. Although many 



/^V^— — ~/\. specimens have been and are still 



J^y^^k-^C^s being reared andliberated, this par- 



l^—\ ^^ ^i^"\ asite appears to be well established 



/ / ) \ on the Island of Oahu. In the 



/ '" \ Kona District of Hawaii, however, 



/ \ where it should have become estab- 



/ \ lished with greater ease, only two 



/ \ specimens have been reared from 



/ \ larvae emerging from coffee cherries. 



^ — ■ , . These two specimens of D.fuUawayi 



Fig. 23— Diachasma fullawayi: Ventral aspect of On Hawaii Were reared by the 



head of newiy hatched larva; greatest width, writers from larvae collected at 



Kainaliu on January 15, 1915, and 

 February 13, 1916, or about 1 and 13 months, respectively, after the 

 original liberations at this point. 1 



On Oahu, particularly in and about Honolulu, this parasite has 

 multiplied with rapidity and was found well established in all parts 

 of the city during September and October, 1915. 



DESCRIPTION. 



Adult. — The original description of the adult is as follows : 



9 . Body ferruginous or ochraceous-ferruginous with the antennae fulvous brown, 

 the wings hyaline, with the veins fulvous brown and the stigma, in part fulvous- 

 ferruginous, tarsi of the posterior legs slightly brownish. Head somewhat broader than 

 long, densly covered with piliferous points, with the face slightly inflated in the 

 middle to form a carina, antennae longer than the body, with 44 segments. Eyes 

 small, about twice as long as wide. Mesothoracic scutum with deep converging 

 parapsidal furrows which meet a little before the posterior margin in a deep common 

 pit; from this pit a median furrow proceeds directly forward, at first deep but gradu- 

 ally disappearing on the surface near the middle of the scutum; the entire surface 



1 Examinations made by C E . l'emberton in Kona during May and June, 1916, found it to be established 

 beyond question, 



