SUBFAMILY HORMAPHINAE 377 
Key to Tribes of Hormaphinae 
1. Aleyrodiform generations not developed. (Not recorded from 
HNO TN) Mae eect ben bse oe ac ahr svaceepruen en anfact bce eacersaiedecahctberiseeacaleeedébiecedcetnad ovequaspiussdtoebbewsens Oregmini 
Spee aa ME EOWA N ERNEENS TRSOTU@E MCL COTYR ALOU O LOI snes apn ge cere seisg ~vecoennden rtemsads ann imcnmoene-teadpes 2 
2. Cornicle absent. Insects usually gall formers (p. 377).........2.....c..--:cccccceesessceeeenenees Hormaphini 
Cornicle usually present. Insects usually not gall formers (p. 377).................--- Cerataphini 
Tribe Cerataphini Gillette and Palmer 
Cerataphidini Baker, 1920a:86. 
Cerataphini Gillette and Palmer, 1934:241. 
Characters. Aptera scalelike. Antenna three- to five-segmented in aptera, 
five-segmented in alata; secondary sensoria annular. Cornicle distinct, on 
raised base. Anal plate bilobed; cauda knobbed. Legs small. Wax secretion 
abundant. Living on surfaces of leaves. 
Key to Genera of Cerataphini 
1. Antenna of aptera (aleyrodiform) five-segmented. (Not recorded 
EE COUUTRETG © 4 CEL D) Mra cela eee eta a oes ea Prey re nan ae ates aaeeesauseererietescoucte shel ace caseocacatacane Aleurodaphis 
... Antenna of aptera (aleyrodiform) four-segmented. (p. 377)........-..:s:c--:ccesecsseeeeeees Cerataphis 
Antenna of aptera (aleyrodiform) three-segmented. (Not recorded 
EP ey ee) CERES cepa gh ye tay. sate ke Nt aly iy a See ey MER RE Ba er mE S70 aE Thoracaphis 
Genus Cerataphis Lichtenstein 
Lichtenstein, 1882:16; Baker, 1920a :87. c 
Characters. Vertex in aptera with two hornlike projections. Antenna four- 
segmented in aptera, five-segmented in alata; secondary sensoria annular. 
Cornicle a mere ring on raised base. Rostral V indistinct. Aptera aleyrodiform, 
with two divisions. Wax glands prominent. Cauda knobbed; anal plate bilobed. 
Fore wing with media once-branched; hind wing with both media and cubitus. 
Genotype (monotypical), Coccus lataniae Boisduval. 
Genotype Cerataphis lataniae (Boisduval) 
The Latania Aphid 
Coccus lataniae Boisduval, 1867 :355. 
Cerataphis lataniae, Gillette and Palmer, 1934:241. 
Apt. Viv. 
cp ena ViV 
(Sen. 10-12) (sen. at 
MTT 
(32- [a 23- ‘ 614-17) Syties 
“Ca Hd. rn ey 
Fig. 454. Cerataphis lataniae 
Apterous Vivipara. Body scalelike 1-1.2 long; hind tibia .24; hind tarsal II .06-.08; an- 
tenna .27. Body with groove separating thorax from abdomen and surrounded with lateral 
glands which secrete white waxy plates composed of thin strands. Appendages completely 
hidden. Eye of 3 facets only. Rostrum attaining 2d coxa. 
Alate Vivipara. Body length 1.4; hind tibia .40; antenna .60-.85. 
Collections. On leaves of palm. Colorado: Fort Collins. Apterous viviparae 
Jan. 25 to March 30, alate viviparae May 39; rare. 
Tribe Hormaphini Gillette and Palmer 
Hormaphidini Baker, 1920a:83. 
Hormaphjni Gillette ‘and Palmer, 1934:242. 
Characters. Aleyrodiform generations developed. Wax secreted from spe- 
cial glands. Secondary sensoria annular. Cornicle lacking. Cauda knobbed; 
anal plate bilobed. 
Key to Genera of Hormaphini 
1. Antenna of alata three-segmented; hind wing with only media. 
PIN Otifalcermiity ORION.) eee earache saan ene ore cnt aces aen uch tes d cancoeien Socanuh asd cnerensnabanrecesdasensanenastase Hormaphis 
Antenna of alata five-segmented; hind wing with both media and 
REUSESANS OCDE S78) reeceet cre acannon ie sorer ean ac pecacstn ach ahasanstecacensenesdaveucerenantucceaiesecner Hamamelistes 
