94 MISC. PUBLICATION 42 4, U. S. DEPT. OF AGRICULTURE 



Head: Antenna 10-segmented ; formula (longest to shortest), (III, IV), (V, 

 VI), (VII, VIII, IX, X), (I), (II) ; antennal setae, I, 1; II and III, 8; IV-X, 

 approximately 15, X also with at least 2 very long setae ; basal bars transverse ; 

 approximately 25 setae anterior to ventral eyespots and along linear bar between 

 antennae, and 1 or 2 on dorsal surface. 



Thorax : Bar between wing bases rectangular, five times as long as wide, with 

 an indication of median longitudinal fold and with a small clear area in center ; 

 tibia very slightly shorter than tarsus. 



Abdomen : Four segments each with a pair of setae dorsally on lateral margin, 

 4 or 5 segments each with a pair of setae in ventral lateral area ; lobes indicated, 

 each with 1 long and 3 or 4 short setae; penis sheath with a few minute clear 

 areas (possibly setal bases) on each side of ventral opening. 



Male nymph. — Distinguishing characters similar to those of adult male. 



Third-stage male. — Resembling adult female, but smaller ; margin with 8-shaped 

 pores in a complete row terminating a pore's width from bases of apical setae ; 

 presence or absence of trilocular pores at anterior end indeterminable, but such 

 pores present elsewhere even between apical setae ; ventral surface with atrium 

 of spiracle apparently slightly enlarged but without pores ; 6 or 8 pores in each 

 spiracular pore band ; legs represented by 3 pairs of very small, sclerotized, raised 

 areas, apparently without claws ; other characters on ventral surface inde- 

 terminable ; apex of abdomen with broken apical setae, other characters 

 indeterminable. 



Data. — Described from unmounted material, and from mounted 

 specimens consisting of 18 females, 7 larvae, 2 adult males, 1 male 

 nymph, and 1 third-stage male on Flagella7 x m mdica, Botanic Garden, 

 Singapore, Straits Settlements; found in the Herbarium at Manila, 

 Philippine Islands, by E. D. Merrill, received from R. C. McGregor in 

 March 1921. 



This species, the first to be reported from the Flagellariaceae, is 

 rather similar to various species of Asterolecanium found on palm. 

 It can be segregated from any known species on palm, however, by 

 the presence of a well defined anal tube and anal ring in the adult 

 female. 



Asterolecanium florum, new species 



(Fig. 25, I-P; pi. 8, B) 



Habit. — Living on both surfaces of leaves. 



Test of female. — Nearly elliptical, posterior end slightly produced ; 1.9-2.40 mm. 

 long, 1-1.25 wide ; very slightly convex dorsally, sometimes with a faint longi- 

 tudinal median carina, flat ventrally ; bright brownish yellow, transparent, fairly 

 thin, punctate ; marginal filaments pale clear yellow or brownish yellow, longest 

 at anterior end, and fragmentary dorsal filaments pale yellow, sparse in sub- 

 marginal area ; larval exit a slit in margin. 



Adult female. — Similar to test in shape, 1.7-2.25 mm. long, 1-1.2 wide. 



Margin : 8-shaped pores in a single row terminating length of apical seta 

 from bases of setae, posterior pores 9 /x long and 7 wide, the others 12 /x long 

 and 7 wide, usually a pore's width apart ; quinquelocular pores in a single row 

 terminating near the posterior pair of 8-shaped pores, usually as numerous as 

 8-shaped pores ; disk pores dorsad of 8-shaped pores, terminating near the 

 posterior pair of those pores, about one-third as numerous. 



Dorsal surface : 8-shaped pores in a submarginal row of 10-20, placed at 

 uniform or variable intervals, about 16 fi long and 12 wide ; minute 8-shaped pores 

 rather sparse ; disk pores usually present near large 8-shaped pores, very sparse 

 elsewhere ; tubular ducts 32 fi long ; dorsal tubes present. 



Ventral surface : Antenna very short, with 2 setae longer and 2 shorter than 

 diameter of antenna ; beak without setae ; spiracular bar fairly broad ; derm 

 outside spiracular opening slightly sunken ; 11-15 quinquelocular pores extend- 

 ing from spiracle to body margin in a single row ; multilocular pores, with 9 or 10 

 loculi, in 5 complete and 3 interrupted rows, each of the posterior 3 rows with 

 7-14, next with 5-8, next with 3 or 4, each of interrupted rows with 2, a total 

 of 38-60 (usually at least 50) ; dark-rimmed 8-shaped pores very sparse in lateral 

 area of abdomen and in 3 or 4 transverse rows among multiloculai- pores; sub- 

 marginal 8-shaped pores in a single row terminating near the posterior row of 



