28 PAPEES OX COCCID.I: OR SCALE INSECTS. 



thickenings limited to a slightly chitinized band about twice the mdth 

 of the median lobes, extending slightly beyond the anal ojDening. 



Type. — Bureau of Entomology No. 7218. Scatteringly infesting a 

 small section of a plant doubtfully identified as Chilopsis linearis; 

 collected by C. H. T. Townsend in Tehuantepec City, Mexico, May 

 26, 1896. 



Note. — The females of this insect were grayid with young at time 

 of collection. The distinguishing feature is the absence of the lateral 

 lobes in connection with the rather large prominent median pair. 



PARLATORIA MANGIFER^ n. sp. 

 (Plate VIII, fig. 2.) 



Scale of female: Moderately dense, dark brown, lighter at the edges, 

 oyal in outline, usually ^\\t\\ slight apical extension; larval exuvia 

 dull greenish. Length 1.5 mm.; breadth 1 to 1.25 nnn. 



Scale of male: Oyal, slightly lighter colored, 1 to 1.3 mm. long by 

 about 0.8 mm. broad. Exuyia more distinctly and pureh' green than 

 in the case of the female, forming quite a strildng contrast \\dth the 

 dull bro^vn of the secretion. 



Adult female: 0.65 nnn. by 0.75 mm.; of normal rounded, peg-top 

 shape; hyaline, saye the anal plate. Anal plate 0.45 mm. broad at 

 base by 0.25 mm. long; rounded, rather strongly chitinized through- 

 out median area and marginall}^; general structure yer}^ similar to per- 

 gandei. Lobes of the pergandei type, rather more chitinized. Three 

 pairs of lobes with strong outer shoulder, median lobes with minute 

 inner shoulder also; fourth and fifth lobes triangular, terminating in a 

 point as in pergandei; lateral teeth represented hj irregular serrations 

 beyond lobes; incisions normal; paraphyses represented by the semi- 

 lunar chitinization at the base of the lobes, unusually heavy; plates 

 resembling those of pergandei in general, i. e., two narrow central 

 plates, and two narrow plates in the first and three in the second 

 incision, posterior one minute; the third incision bears three broad, 

 triangular plates, serrated on the exterior margin; following the 

 fourth lobe are four or five similar exteriorly serrated plates; spines 

 normal; anal opening narrow, halfway between tip of segment and 

 vaginal orifice; paragenitals wanting; parastigmals represented by a 

 group of 8 to 10 pores on the inner side of each stigma; dorsal pores 

 large and numerous, represented by 5 more or less regular rows of 

 pores on either side of the center; the central row 3 to 4, the second row 

 5 to 6, third 8, fourth and fifth scattering. Marginal oval pores de- 

 creasing in size from tip to base of segment ; basal thickenings practi- 

 cally wanting; ventral thickenings represented by a broad suffused 

 chitinization extending from the tip to the base of segment, and more 

 or less along the margin. 



