NO. 1977. MONOGRAPH OF THE SIGNIPHORIN.E—GIRAILT. 203 



Like nigra, there is also a clear area proximad, but this is somewhat 

 more prominent with this species. (See beyond.) The male is 

 like the female. 



The species has not been mentioned again in the literatm'e; it is 

 variable, as will be shown later. 



I have studied the following specimens: The tag-mounted types 

 now remounted in xylol-balsam; these were and are labeled " Signi- 

 pTiora australiensis Ashmead, female. Type No. 4771, U.S.N.M. 

 Australia. Koebele. 12." The type consists of three females. 

 Also a sHde from the collections of the United States Department of 

 Agriculture, Washington, District of Columbia, bearing 2 males and 

 12 females and labeled "1849. Acanthococcid on Eucalyptus. 

 Gosford, N. S. W., Nov. 1899. A. Koebele." These specimens 

 varied considerably in the fumation of the fore wing and in the 

 length of the marginal frmges. In all of them the latter were dis- 

 tinctly shorter than in the type specimens, while the majority of the 

 specimens showed the clear, subhyaline band at the middle very 

 indistinctly, not clear cut as in the type specimens excepting with 

 several of them. Casually, in most of these specimens, the fore 

 wings appeared to be fumated throughout, the cloudiness gradually 

 fading out distad. I have since captured a female specimen of this 

 species on a xsnudow of a barn at Roma, Queensland, October 6, 1911. 



Hahitat. — Australia — New South Wales (Gosford); Queensland 

 (Roma). 



Host. — ^Acanthococcid on Eucalyptus. 



Types. — The tlu"ee females as indicated in foregoing. 



4. SIGNIPHORA DACTYLOPH Ashmead. 

 Signiphora dactylopii Ashmead, 1900, pp. 409, 410. 

 The original description runs as follows: 



Female. — Length, 0.5S mm. Blue-black, the mesonotum "n-ith an aeneoua tinge 

 anteriorly; legs concolorous with the body, except the tarsi, which are white; wings 

 hyaline, wdth a fuscous band across the middle from beneath marginal vein to the 

 hind margin. 



Type.— Cat. No. 4772, U.S.N.M. 



Habitat. — District of Columbia. 



Host. — Rhynch. Pseudococcus ephedra (Coquillett) . Bred at Department of Agri- 

 culture. 



The following descriptive notes are added, taken from the t^-pes 

 and the specimens mentioned beyond: Like nigra but differing in 

 that the vertex and mesonotum are metallic green, the former smooth 

 and shining but with scattered pin-punctures; the mesonotum is 

 finely transversely lined; the proximal joint of the posterior tibiae 

 is as long as the same joint of the intermediate tibiae; the fore wings 

 are hyaline with the exception of a broad band across them somewhat 

 before the middle, from the marginal vein; the proximal margm of 



