SUBFAMILY APHINAE 85 
Alate Vivipara. With dark markings as follows: Head and thorax, broad dorsal bands 
somewhat broken and lateral areas (one surrounding cornicle) on abdomen; entire antenna 
black; most of legs dusky. Measurements about as in ovipara. Wartlike projection on vertex 
rising abruptly, .04 high, dorsal to ocellus. Wings hyaline; fore wing with twice-forked 
media; hind wing with both cross-veins distinct. Body length 2-2.4; antenna 1.6-1.8; hind 
tibia .75-.85; hind tarsal II .14-.15. 
Ovipara. Pale greenish yellow with slight dusky transverse dashes on intersegmental 
lines; appendages blackish; with deep yellow spot just anterior to each cornicle and same size 
as cornicle pore and with wax threads projecting laterally from sides of abdominal VI and VII 
which threads are used to cover eggs. Body 2-3 by .96; vertex with wartlike projection rising 
abruptly, as long as antennal I. Antenna 1.60-1.80. Cornicle mere pore on middle of lateral 
portions of abdominal VI. Cauda knobbed; anal plate divided. Antenna with imbrications 
faintly denticulate. Hind tibia slightly swollen and bearing numerous small, slightly convex 
sensoria. Hairs throughout very short and inconspicuous, pointed. Body surface shagreened 
to finely denticulate. 
Egg. At first, pale yellow, covered with waxy threads taken from body of female; later, 
black. Size .71 by .29. Laid length-wise on leaf near base. 
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Sen. 2-4 
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Fig. 91. Thripsaphis verrucosa 
Collections. On leaves of Carex nebraskensis. Colorado: Fort Collins. Utah: 
Salt Lake City and Soldiers Summit. Apterous viviparae Sept. 16, oviparae Oct. 
15 to Dec. 2; rare. Viviparae, both alate and apterous were taken in California 
near San Juan Capistrano, June 7, by R. C. Dickson. 
Type. U.S.N.M., No. 41949. 
Chief Distinguishing Characters. Conspicuous wartlike projection on the 
vertex of both alatae and apterae. The longer antenna also distinguishes it from 
T. producta and T. balli. 
Subtribe Drepanosiphina Baker 
Baker, 1920a:31. 
Characters. Frontal tubercles developed, somewhat exceeding vertex. An- 
tenna much longer than body. Abdomen of ovipara with terminal segments 
elongated to form long ovipositor. Cauda, knobbed; anal plate indented. Corn- 
tcle much longer than broad. Fore wing with media twice-forked. 
Key to Genera of Drepanosipnina 
MEECOLTHICLEESWOlLeTIcat DAS Cn CD ig 6 5)) ener a eae rm ey I eee eee Drepanaphis 
SornicleanotyswollenpatebaSen (ps .66))itee ces eects se teste ete ee ne eh eee Drepanos!phum 
Genus Drepanaphis Del Guercio 
Del Guercio, 1909b:49; Baker, 1920a;31; Smith, 1941:226. 
Characters. Frontal tubercles distinct. Antenna bearing only minute hairs; 
secondary sensoria large, oval and ciliated. Conspicu>us dorsal tubercles pres- 
ent. First femur much stzuter and longer than 24 and 3d, 2d pair weakest. 
Cornicle more than twice as long as broad, swollen for proximal two-thirds. 
Cauda knobbed; anal plate indented in vivipara. Ovipara with abdominal VII 
and VIII greatly prolonged to form ovipositor. Fundatrix alate. Living on 
leaves of trees. 
Genotype (monotypical), Siphonophora acerifolii Thomas. 
