TRIBE ASPIDIOTINI 455 



dian and second pairs of lobes similar, entire, truncately 

 rounded, constricted, subequal in size; third pair of lobes 

 minute, described as obsolete, pointed; pectinae subequal in 

 length to lobes, arranged 2, 2, 3, 1, those of each third in- 

 cisurae and each lateris broad, unapectinae, consisting of 

 long distal projection and remainder broad area with short 

 teeth; dorsal oraceratubae small, numerous, scattered; anus 

 located slightly caudad of tongue-shaped area; lateres crenu- 



late. South Africa on Euphorbia euphorbiae Newst. 



dd. Pygidium never with strongly chitinized tongue-shaped area; 

 median pair of lobes oval, not very large; second pair of 

 lobes subequal to median; third pair of lobes small; pectinae 

 or plates arranged 2, 2, 3, 2, those of incisurae furcapectinae, 

 those of each lateris broad obliquely truncate plates; lateres 

 without teeth; dorsal oraceratubae numerous, arranged in 

 rows; calles divided into four parts. Cape Town, South 

 Africa on Mesembryanthemum lounsburyi Marl. 



cc. Pygidium with four pectinae on each lateris, pectina arranged 

 2, 2, 3, 4, all trilacinate; lobes four pairs, similar, median pro- 

 jecting, others decreasing regularly in size; lateris with teeth 

 in three areas; spiracerores 7-8; dorsal oraceratubae large, con- 

 spicuous, arranged in rows; calles wanting. Java on mango- 

 steen and mango greeni Marl. 



aa. Pygidium with median pair of lobes notched. 



b. Pygidium with three or more pectinae on each lateris adjacent 

 to third lobe. 



c. Pygidium with median pair of lobes distinctly longer than 

 broad, distal end bluntly rounded, mesal and lateral notches 

 broad and shallow; second pair of lobes similar in form, 

 smaller, distinct mesal and faint lateral notches; third pair of 

 lobes longer than broad, dagger-shaped; pectinae subequal in 

 length to lobes, arranged 2, 2, 3, 6-7, mesal projection of third 

 incisurae spine-like plate, others unapectinae, those of each 

 lateris irregular unapectinae; dorsal oraceratubae few. 

 Kamerun, Africa on Agelaia, Tricalysia. gracilis Lindgr. 



cc. Pygidium with median pair of lobes distinctly broader than long, 

 d. Pygidium with width of third incisurae distinctly greater 

 than total width of median pair of lobes and median in- 

 cisura; median pair of lobes broader than long, disital end 

 bluntly pointed, mesal and lateral notches deep; second pair 

 of lobes longer than broad, lateral margin slightly oblique, 

 mesal and lateral notches deep; third pair of lobes sharply 

 pointed, spine-like; pectinae slightly longer than median 

 lobes, arranged 2, 2, 3, 4, those of third incisurae, particu- 

 larly two cephalic, broad distapectinae, those of each lateris 

 very irregular; dorsal oraceratubae numerous. Kamerun, 

 Dutch East Africa and south Africa on Anacardiaceae, Bandei- 

 raea, Rinorea, Ficus, Aberia, Euonymus, Berberis, Chrysophyl- 

 lum, tea, citrus, palms. _ silvaticus Lindgr. 



