TRIBE LEPIDOSAPHINI 291 



dd. Median pair of lobes uiformly rounded, entire, not notched, 

 scarcely adjacent, mesal margins divergent; second pair of 

 lobes similar to first, entire, not notched; small rounded 

 lobelet caudad of second lobe may be lateral lobelet of sec- 

 ond lobe; plates arranged 0, 1, 3, those of each lateris sit- 

 uated, one near second lobe, one at middle, one at cephalic 

 end; genacerores 6-6(16-17)11-12; mesospiracerores 7-10. 

 Java on Ilex. javanica Leon. 



SPECIES OF HEMIASPIS 



Pygidium of median pair of lobes adjacent, semicircular in form, mar- 

 gins entire, lateral margin entire or with faint notch; other lobes 

 wanting; plates flattened, caudal one not as long as lobes, arranged 

 0, 1-1-1-1, cephalic plate very broad; minute paraphyses, two pairs, 

 or thickenings located between caudal, first and second, and second 

 and third plates; dorsal octaceratubae few; genacerores 4-4(6-6)4-4. 

 Lepidosaphes hemichionaspiformis Green. North Australia on Mela- 

 leuca. hemichionaspiformis Green. 



SPECIES OF ISCHNASPIS 



a. Pygidium with two plates in each second incisura; plates arranged 

 0, 2, 6, those of each lateris two, distant, at caudal end, two sub- 

 adjacent one-third from caudal end, and two subadjacent near 

 cephalic end; median pair of lobes broadly rounded, widely sepa- 

 rated, not oblique, finely serrate; second pair of lobes incised, each 

 lobelet similar to median, entire, broadly rounded, mesal lobelet 

 larger than lateral; large oraceratubae in each second incisura 

 laterad of its plates and another laterad of each second lobe; mar- 

 gin of pygidium broadly concave between caudal oraceratubae; 

 genacerores in three groups, median group 3-4 and each lateral 

 group 4-6. Lepidosaphes ritsema-bosi Leon. United States, West 

 Indies, Brazil, Great Britain, Japan, Australia on Pandanus, Latania, 



Magnolia, Jasminum, Monstera, palms, coffee, etc 



longirostris Sign. 



aa. Pygidium with single plate in each second incisura; plates arranged 

 0, 1, 3, those of each lateris situated, one near second lobe, one near 

 middle, and third near cephalic end; median pair of lobes large, 

 broadly rounded, strongly oblique, distinctly separated, finely ser- 

 rate; second pair of lobes small, incised, mesal lobelet much larger 

 than lateral, bluntly rounded, serrate; oraceratubae in each second 

 incisura adjacent to second lobe, two adjacent ones cephalad of 

 caudal plate of each lateris and one cephalad of each of other 

 plates; pygidial margin deeply concave between plates of second 

 incisurae and median lobes situated in concavity; genacerores ar- 

 ranged in five groups, 2-3(6-12)4-4; mesospiracerores 0-1. South 

 Africa on Cyclostomum, Strychnos. Mpindensis Lindgr. 



SPECIE'S OF MYTILELLA 



Pygidium with median pair of lobes inconspicuous, tooth-shaped, faintly 

 notched on lateral margin, distant; second pair of lobes incised, 

 mesal lobelet slightly larger than lateral, notched on lateral margin, 



