NO. 1977. MONOGRAPH OF THE ySIONIPHORIN^—GIRAVLT. 197 



Species. Hosts. 



16. basilica Aspidiotus latanix. 



17. pulchra .Aspidiotus uvse. 



Diaspis pentagona. 

 Aulacaspis rosx. 

 Chionaspis americana. 



18. maxima Unknown. 



19. vulancholica Unknown. 



20. fasdata Pulvinaria sp. on ash. 



Inglisia sp. on cotton. 

 Aleyrodes on Hydroxylon. 



21. hyalinipennis Capulinia jahoticahx. 



22. maculata Lepidosaphes alba. 



23. nigrella Chrysomphalus tenebricosus . 



24. fax Chrysomphalus personatus. 



From the above it is readily seen that the species do not confine 

 themselves to a single host but may attack many of them. The hosts 

 of any one species are usually closely related, though in some cases 

 a species attacks one or two hosts in a different family from that of 

 most of its hosts which are usually of the same genus. The hosts of 

 the new Australian species are not known. 



Three closely related families in the Hemiptera-Homoptera furnish 

 food for the young of this subfamily, the Coccidse, however, supply- 

 ing most of it. 



SYSTEMATIC TREATMENT. 



Genus SIGNIPHORA Ashmead. 



Signiphora Ashmead, 1880, p. 30, pi. 2, figs. 2-3, 6, 8, 12, and 15.— Howard, 1881, 

 p. 371; 1894, p. 235.— Dalla Torre, 1898, p. 217 and footnote.— Ashmead, 

 1900, pp. 409-412; 1904, pp. 311, 388, 497.— Schmiedeknecht, 1909, p. 261. 



No synonyms. 



Type. — S. jlavopalliata Ashmead. 



1. SIGNIPHORA FLAVOPALLIATA Aslimead. 



Signiphora fiavopalliatus Ashmead, 1880, pp. 29-31, pi. 2, figs. 2-3, 6, 8, 12, and 



15.— Howard, 1881, p. 371. 

 Signiphora Jlavopalliata Ashmead, Howard, 1894, pp. 233, 235. — Dalla Torre, 



1898, p. 217 and footnote 1.— Ashmead, 1900, pp. 409, 411; 1904, x^p. 311, 388. 

 Signiphora -occidentalis Howard, 1894, pp. 233-235, fig 10. — Dalla Torre, 1898, 



p. 217 and footnote 2.— Ashmead, 1900, pp. 409, 411. 



The original description of this species is quoted forthwith: 



The Blue Yellow-cloaked Chalcid. 

 {Signiphora flavopalliatus, N. Sp.) 

 [Ord., Hymenoptera. Fam., Chalcididae.] 

 This is a very anomalous chalcid fly, discovered by me in September, running over 

 the leaves of orange trees infested with the oval scale. ^ ^ 



1 The next three paragraphs are omitted here, as they contain an account of habits and the generic descrip- 

 tion. In the paragraph immediately following this opening sentence, however, Ashmead wrote: The fly 

 is a beautiful little creature, less than .02 of an inch long, robust, with head wider than thorax, three ocelli, 

 three-jointed antennae, first joint being long, second small and round, third long and wide, club-shaped; 

 the abdomen is somewhat shartsly pointed, with a rather long ovipositor in the end ; the head and abdomen 

 are bluish-black, while the thorax is orange yellow; the wings are clear, iridescent, and strongly fringed 

 or ciliated with long hairs, with shorter ones on their surface; the legs are pale yellow, and the hinder pair 

 isfumished with an anomalous five-lobed appendage, where usually is the tibial spur. (p. 30.) 



