NEW SPECIES OF DIASPINE SCALE INSECTS. 21 



ASPIDIOTTJS (DIASPIDIOTXJS) TRANSCASPIENSIS n. sp. 

 (Plate IV, fig. 1.) 



Scale of female: 1.5 mm. in diameter, subcircular, of a yellowish 

 or buff color. Exuviae orange, exposed when rubbed or old. 



Scale of male: Of normal oval shape, similar in color to the female. 



Adult female: Broad, oval, 1 mm. in length; anal 'plate broad, 

 rounded; median lobes only represented; laterals wanting or rudi-^ 

 mentary as in the case of ancylus; median lobes strongly chitinized,, 

 with very deep outer notch forming a rather distinct lobule; inner 

 notch wanting; the two lateral incisions shallow, broad, and v^ith 

 very heavy, robust, bordering paraphyses or thickenings ; paraphyses 

 of first incision particularly large, especially the inner one ; of second 

 incision, much smaller; plates inconspicuous; spines not especially 

 developed, normal; anal opening near tip, very minute; paragenitals 

 wanting; dorsal pores few, inconspicuous, scattering; median line of 

 basal thickenings subhy aline, inconspicuous; laterals narrow, well chit- 

 inized; two prominent longitudinal thickenings bordering the center 

 of the pygidium; ventral thickenings normal, well chitinized. 



Tyj^e. — Bureau of Entomology No. 8216. On some old dried bark 

 of Poj)ulus,ivom. Transcaspian Russia, supposed to be from C. Ahnger, 

 of Ashkabad, received November, 1898. 



In its rudimentary second and third lobes this species is related 

 to ancylus. The important characters are the strongly chitinized 

 median lobes, with prominent external lobule and the prominent 

 longitudinal thickenings, and the absence of paragenitals. In the 

 latter character it falls with the South African species africanus, which,, 

 however, it does not otherwise closely resemble. 



ASPIDIOTTJS (HEMIBERLESIA) EPIGiE^ n. sp. 



(Plate IV, fig. 2.) 



Scale of female: 1.5 mm. in diameter, subcircular, elevated, more 

 or less conical; exuvia covered but showing as a yellowish spot; 

 larval excretion persistent as a central nipple; color gray, often v/ith 

 purplish tinge, more or less annulated v>^ith lighter. 



Scale of male: Normal shape, otherwise resembling the female. 



Adult female: 0.6 to 0.7 mm. wide hj 0.9 mm. long; normal peg-top 

 shape, hyaline in balsam mount; a7ial plate 0.30 to 0.34 mm. in 

 diameter at base, rounded, nearly hyaline ; two pairs of well-developed 

 lobes with sometimes a rudimentary third spear-shaped lobe ; median 

 lobes much larger than second pair and strongly chitinized, brown, 

 the chitinization ending abruptly at base, not extending into segment 

 except slightly at inner side, giving the base a somewhat irregular 

 oblique termination; median and second pairs of lobes with two 

 subequal small notches; second pair of lobes, and third, if present,, 



