210 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.45. 



Habitat — West Indies (Trinidad) ; Mexico — Morelos and Vera Cruz. 

 United States — Pennsylvania (Westgrove). Peru — (Lima; Payta; 

 Saman). 



Hosts. — Aleyrodes sp. on orange (Trinidad) ; Lepidosaphes carinata 

 Cockerell on lime and Aspidiotus camellise on acacia (Mexico); 

 ChrysompJialus aonidum Linnaeus and C. dictyospermi on Kentia 

 (Pennsylvania); Aspidiotus sp. on Myrtus (Mexico). 



Types. — The three females indicated above. 



Homotypes. — Accession No. 45094, Illinois State Laboratory of 

 Natural History, Urbana, 2 females on a slide (Saman, Peru). 



The following additional specimens : A slide from the collections of 

 the United States Department of Agriculture bearing a single female 

 and labeled "14°3a. Payta. Gen. Nov. 2d. sp.3d. C. H. T. Jan. 

 2, '10. T." and taken in Peru by C. H. Tyler Townsend. A male 

 specimen on a slide with an Aphelinus from the same collection, 

 labeled " 1705. Aspidiotus sp. on Myrtus sp. Orizaba, Vera Cruz, 

 Mex. July 15, '97. A. Koebele." 



11. SIGNIPHORA COQUILLETTI Ashmead. 

 Signiphora coquilletli Ashmead, 1900, pp. 409, 412. 

 The original description is as follows : 



Female. — Length, hardly 0.50 mm. Bright golden-yellow; vertex of head fuscous; 

 thorax entirely, and abdomen, except a dark brown band at base which occupies fully 

 one-thicd or more of its length, yellow; otherwise as inAleyrodis. 



Type.— Cat. No. 4857, U.S.N.M. 



Habitat. — Rhynch.: Aleyrodes sp. on Quercus agrifolia. 



Easily distinguished from S. aleyrodis by the fuscous vertex and the absence of 

 the brown blotch on the anterior part of the thorax. 



This species is like aleyrodis nearly but differs more than merely 

 having the brown band across the abdomen slightly longer. Colora- 

 tionally, it may be distinguished from aleyrodis thus and not other- 

 wise: The latter is pallid or lemon yellow whereas coquilletti is deep 

 orange in color, a striking difference when compared side by side; 

 consequently, the brown band of the abdomen is more striking in 

 coquiUetti and has more black in it. Structurally, I am unable to 

 separate the two species with the exception that the body of this 

 species is a little more compact, slightly more robust and the wings 

 perhaps a trifle broader. T.he mandibles are bidentate and black at 

 tips. It varies considerably in size and some specimens may be 

 twice the size of others. I have seen one specimen (female) among 

 other typical ones which had all the abdomen black. 



I have studied the following specimens: The single type female 

 specimen mounted on a thick common glass slide in the United States 

 National Museum collection, labeled " Signipliora coquiUetti Ashm., 

 female. Bred from Aleyrodes on Quercus agrifolia. Type 4857. 

 Oct. 4, 1887. (72." and probably reared in California by Coquillett 



