16 PROCEEDINGS OF THE NATIONAL MUSEUM vol.78 



36. Hind coxae usually yellow in sharp contrast to the blackish coloration. 



Middle femora with a distinct pale annulus at base. Tibiae of middle 

 and hind legs either entirely yellow or marl^ed with fuscous. (Hawaii, 

 Japan) 28. hawaiiensis Timberlake."" 



37. Middle tibiae entirely yellow or more or less uniformly faintly dusky 38 



Middle tibiae blackish or dark on the basal two-thirds, yellow or whitish 



at apex. Coxae, trochanters, and femora of all legs black or dark brown 

 except the femora of the fore and middle legs which are pale at the ends 

 and the latter with a distinct annulus at base. Hind tibiae completely 

 blackish or dark brown. Head and antennae blackish to dark browm. 

 (Philippine Islands) 29. tibialis, new species. 



38. Hind tibiae usually distinctly blackish on the basal third or more 39 



Hind tibiae usually entirely yellow, sometimes faintly dusky at the base. 



Fore wings usually faintly and uniformly smoky, densely and closely 

 ciliated with a small rounded hairless spot near the base. (Africa, Italy.) 



30. cowperi Glrault.'^ 



39. Face and cheeks usually blackish or brownish. Femora of fore and middle 



legs usually definitely and distinctly blackish in part 40 



Face, cheeks, and antennae yellowish; frontovertex orange, occasionally 

 more or less suffused with fuscous. Fore and middle femora rather 

 vaguely and distinctly dusky. (Natal, Africa) _31. isipingoensis, new species. 



40. Face and cheeks usually blackish or brownish ; frontovertex usually brown 



or fuscous. Scape usually fuscous in contrast to the yellow flagellum. 

 There are exceptions. Femora usually definitely blackish with the ends 



yellowish. (N. America) 32. lecanii (Fitch). 



32o. fuscipes Howard. 



In the female sex hardly separable from the foregoing species. (Consult 



key to the male forms.) (Eritrea, Africa) 33. eleapMlus Silvestri. 



41. Ovipositor concealed or shortly exserted 42 



Ovipositor exserted about one-fourth the length of abdomen. General color 



honey yellow. Axillae and center of pronotum blackish. (Australia.) 



34. big'uttatus Girault. 



42. Hind coxae and femora not abnormally swollen 43 



Hind coxae and femora abnormally swollen. Antennae parti-colored. Abdo- 

 men whitish with transverse brown bands. (Ceylon) _35. zebratus Howard. 



43. Scutellura without supernumerary setae scattered near the anterior pair 



of bristles 44 



Scutellum with a varying number of small setae scattered near the anterior 

 pair of bristles. Funicle joints all about as wide as long or occasionally 

 wider than long. A small species. Face and cheeks yellow : frontovertex 

 orange. Notum of thorax and abdomen black with conspicuous yellow 

 markings roughly defined as three cross bands: first band across the 

 posterior two-thirds of mesoscutum, parapsides, and tegulae ; second band 

 across base of abdomen ; third band across abdomen near apex. Scutellum 

 mostly black, the sides yellow. (Africa) 36. trifasciatus Compere. 



20 C. haiL-aiiensis Timberlake may be a synonym of O. japonicus Compere. Typical speci- 

 mens are strikingly different in the coloration of the legs but there are intergradations. In 

 the United States National Museum Is a series of specimens, all supposedly reared from 

 the same host taken from the same locality, which includes individuals that agree with 

 both the types of C. japonicus Compere and C. Mwaiiensis Timberlake. On the basis of 

 this evidence Gahan concludes that the two forms represent a single species. On the other 

 hand, Timberlake is inclined to the belief that two distinct species are involved. I have 

 spent considerable time comparing the two forms without being able to reach a decision. 

 In the case of C. pulvinariae, new species, and O. isipinaoensls, new species, we are again 

 confronted with two forms that co-exist and have at least one host in common. 



"Consult key to males on p. 60 for aid in recognition of species in tlie C. lecanii (Fitch) 

 group. 



