A NEW SPECIES OF TOXOPTERA, 7 



Fourth insfar (])oforo fourth molt). — Gonoral color pale ^oon, the 

 head bein^ sJiijjJitJy ])al('r than other ])arts of tJic body, and tlie 

 abdomen Jiaving somewJiat of a motth'd apix'arance, due to tlie 

 presence of young within. Beak not reacJiing coxsp of tliird pair of 

 legs, black at tip. Eyes black. Antennae 5-segmented (one speci- 

 men showed six segments ])lainly), segment. Ill with a constriction a 

 little beyond the middle, indicating the point where it divides at the 

 next molt; the two distal segments almost or (phte black, the others 

 dusky, shading into gi'cenish gi'ay at the base; sensoria as in the 

 preceding instar. Legs gi-eenish gray, shading into dusky near 

 extremities; tarsi shining black, distal portion of tibiae and joints 

 quite dusky. Cornicles concolorous with abdomen, excepting tips, 

 which are dusky. Style slightly paler than body. 



^leasurements (from two s})ecimens recently mounted in balsam): 

 Length of body, 0.90 mm.: width, 0.3912 mm.; antenna, I, 0.049 

 mm. ; II, 0.04 mm. ; III, 0.122 mm. ; IV, 0.065 nmi. ; V, base, 0.057 mm. ; 

 y, filament, 0.114 mm.; total length, 0.447 mm.; cornicles, 0.049 

 mm.; hind tarsus, 0.0896 mm. 



Described from two specimens. Types on two balsam slides, in 

 the collection of the Bureau of Entomolog}-^, U. S. Department of 

 Agriculture. La Fayette, Ind., 1910. 



Fifth instar (adult stem mother). — Before the birth of any young 

 the adult is pale gi'een, but gi'adually the color deepens to ap'ple- 

 green. As in the preceding instar, the young show through the 

 body wall, giving the abdomen somewhat of a mottled appearance. 

 Usually there is a small yellowish area around each cornicle. Head 

 much paler than body, and with a grayish tinge at anterior end. 

 Beak barely reaching coxae of second ]">nir of legs, black at tip. Eyes 

 jet-black. iVntenuiv less than one-half the length of body, segments 

 III and filament of VI longest, they being sube(iual, but filament VI 

 usually slightly the longer of the two; IV aboiit two-thirds or less 

 the length of III; IV and V subequal; base of VI about one-half the 

 length of filament; the two basal segments concolorous Avith head; 

 HI dusky, shading to blackish at apex: the remaining segments 

 black. Legs gi-eenish gray, excepting the joints, which are dusky. 

 Apices of tibiic very dusky, and tarsi shining black, ('ornicles pale 

 translucent, and dusky at tips. Style pale translucent, sometimes 

 dusky, and with a frosted api>earance. All stages, including adult, 

 are more or less pruinose. 



Measurements (from five specimens recently mounted in balsam) : 

 Length of body, average, 1.34 mm.; widtJi, average, 0.69 mm.: 

 antenna, I, 0.057 mm.; II, 0.040 mm.; Ill, 0.14-0.175 mm., average, 

 0.155; IV, O.OS-0.1059 mm., average, 0.0945 nun.; V, 0.0978-0.1222 

 mm., average, 0.10 nun; \l, base, 0.073-0.089 mm., average, 0.08 

 mm.; VI, filament, 0.14-0.195 nun., average 0.171 mm.: average, 

 total, 0.6975 mm.;, cornicles, 0.11 nun.; style, 0.135 mm.; hind 

 tarsus, 0.10 nun. 



