TRIBE ASPIDIOTINI 431 



second incisurae broad; plates shorter than second pair of lobes, ar- 

 ranged 0, 2, 2, 0; setae small; oraceratubae small, numerous; anus 

 longer than broad, six times its width from caudal margin. Kansas 

 on roots of Helianthus. helianthi Parrott. 



SPECIES OF TRUNCASPIDIOTUS 



Pygidium of adult female with three pairs of lobes, similar in size, 

 stout, prominent, truncately rounded, entire; some of lobes some- 

 times missing; pectinae broadly truncated, without pectinations, ar- 

 ranged 2, 2, 3, 0, resembling lobes; each lateris thickened and coarsely 

 dentate; paraphyses wanting; dorsal oraceratubae few in number; 

 ventral aspect of preabdomen on each side with four to six short, 

 stout, conical setae inserted in calices with thickened rims; head and 

 thorax on each side with row of long stout submarginal setae. Algoa 

 Bay, Cape Colony, Transvaal, Africa on Aloe capensis Walker. 



SPECIES OF VARICASPIS 



Scale of adult female elongate, sides compressed, meson rather sharply 

 keeled, exuviae central, superimposed, secretionary portion broad, at- 

 tached to edge of leaf with equal portions on each side; body with 

 dorsum strongly convex, venter flat; rostrum located nearly midway 

 between cephalic end of body and caudal end of preabdomen, far 

 caudad of cephalic margin; body densely chitinized except pygidium; 

 pygidium with median pair of lobes quadrangular, distinct mesal and 

 lateral notches, as broad as long, bluntly rounded between notches; 

 second pair of lobes smaller than median, longer than broad, distinct 

 lateral notch; third pair of lobes minute, distinct, lateral notch; pecti- 

 nae or plates subequal in length to lobes, arranged 2, 2, 3, 3-4, one next 

 to third lobe a pectina, others plates ; vulva located near middle of pygi- 

 dium and anus almost half way between vulva and caudal margin. 

 Uganda, Africa on Coffea. florineides Newst. 



SPECIES OF GONASPIDIOTUS 



a. Body with cephalic margin entire and never uniformly crenulate. 

 b. Pygidium with two pectinae or plates in median incisura. 



c. Pygidium with pectina on each lateris, median pair of lobes 

 with mesal and lateral notches, subquadrangular, prominent, 

 broadly rounded; second pair of lobes about one-half size of 

 median, bluntly pointed between mesal and lateral notches; 

 pectinae subequal in length to lobes, narrow distapectinae, ar- 

 ranged 2, 2, 3; each lateris with three spine-like projections 

 equidistant from each other and a second lobe, one adjacent to 



pectinae of lateres. Italy on Quercus minimus Leon. 



cc. Pygidium without pectinae or plates on lateres. 



d. Pygidium with setae small, subequal in length to median 

 pair of lobes; median pair of lobes broader than long, mesal 

 margins parallel, distal end bluntly rounded, lateral 

 margin oblique, lateral notch; second pair of lobes similar 

 to median, smaller, lateral notch; second incisurae normal 

 in width, plates arranged 2, 2, 0, short, much shorter than 



