NO. 1362. ALEYHomm OP CAlTPORNlA-BEMm. 505 



20. ALEYRODES GOYAB.(E Goldi. 

 Aleyrodeft yoyah.r GohT>i, Mittheil. 8c'hwoit/,. entom. (iesellsch., VIl (ISSfV), p. 248. 

 On /*.sidfi(/ii (/K/tjava and Persea gratissima^ Kio dc Juneiro. 



21. ALEYRODES GRAMINICOLA Quaintance. 

 Aleyrodef) grami)ii('<ila QvAiNTAWE, Can. Ent., XXXI, p. SJ). 

 On an undetermined grass, Lake C-it}, Florida. 



22. ALEYRODES HORRIDUS Hempel. 



Aleyrocles liomdux Hempel, Psyche, VIII, No. 280, p. 394. 

 On Psidimii sp., Sao Paulo, Brazil. 



23. ALEYRODES INCONSPICUUS (Quaintance)." 

 Plate XXXII, figs. 34-37a. 



Although there are a number of differences between the above and 

 the specimens from which these descriptions were taken, they agree in 

 essentials sufficiently to justify placing them together. Only those 

 stages not previously described and the variations from Quintance will 

 be included here. 



Larva. — (Stage 1.) Size, 0.26 by 0.13 mm.; elliptical; pale yellow. 

 Dorsum convex, with a distinct marginal rim, in which are two parallel 

 rows of minute, transparent dots, and which bear fifteen pairs of short, 

 tubercled seta3 on its lateral margins; of these the third cephalic pair 

 is much the longest; besides these sette there are the usual caudal and 

 latero-caudal pairs both of long spines; a pair of delicate, minute hairs 

 on the cephalic margin; a pair of long spines at the vasiform orifice 

 and cephalad of those, a shorter pair. Abdominal sutures distinct, the 

 posterior ones reflexed caudad. The last segment is narrowed and 

 prolonged into a small lobe; marginal cronulations very shallow. 

 Vasiform orifice cordate, almost as wide as long, the caudal end broadl}- 

 rounded, cephalic margin straight; operculum subrectangular, about 

 one-third as long as it is })road, distal margin truncate and densely 

 setose; lingula spatulate, as long as the orifice, setose, and with a pair 

 of long, sub-terminal setie. Legs functional, tarsi with digituhvs as in 

 the Coccida3; antennas long and slender, only the first segment defined. 



Z«;'w/.— (Stage 2.) Size, 0.3 by 0.2 mm.; the marginal hairs and 

 rim and the antennse are not visible. The dorsum bears three pairs 

 of long spines: A pair on the meso-thorax; a pair on the meta-thorax, 

 and a pair at the vasiform orifice; the usual caudal hairs are present. 

 Vasiform orifice small and subcircular, caudal end truncute; operculum 



"Contril)utions toward a monograph of the Ainorifun Alcuroilidu' (T. S. Agri. 

 Dept., Division of Kntoniolotry, Technical Ser. 8, p. 22). 



