1965] 
Bush — Zonosemata 
315 
and Phillips (1946) and will not be repeated here. Body and wing 
measurements are presented in Table 1. This predominantly yellow 
species can be distinguished by the following combination of charac- 
ters: (1) large body size (Table 1) ; (2) absence of black markings 
before the transverse suture on the dorsum and on the sternopleuron 
(Figs. 29, 37) ; (3) yellow postscutellum ; (4) presence of only a 
single pair of spots on the last segment of the preabdomen (Figs. 
9-10); (5) crossbands of wing broad with medial and subapical 
bands joined along the posterior margin (Fig. 4) ; (6) microtrichia 
present between medial and subapical bands in cells R a , R 3 , R 5 , and 
1st M 2 . Other morphological features of electa are illustrated as 
follows: genitalia (Figs. 17-22, 25, 27); sternites (Figs. 23-24); 
head (Fig. 30) . 
variation. There is a great deal of individual variation in this 
species, particularly in the extent of black shading on the thorax and 
hind femora. Figs. 29 and 37 therefore represent only the most 
frequently encountered pattern in well-aged specimens whose color 
has had time to develop fully. The U-shaped pattern of the dorsum, 
for example, is often reduced to a small region along the sulcus 
between the dorsum and scutellum, or is entirely absent. There is 
also a tendency for individuals from Florida to be somewhat smaller 
than those from either the North or Texas. A few of the Florida 
specimens were as small as the average sized vittigera. Although 
most specimens had four pairs of lower fronto-orbitals, numbers 
ranging from three to as many as seven on one or both sides of the 
frons were not uncommon. 
hosts. Solarium carolinense Linn., S. aculeatissimum Jacq., S. 
melongena Linn., Capsicum annum Linn., and infrequently Lyco- 
persicum esculentum Mill. (Peterson 1932, Benjamin 1934). 
parasite. O plus sanguineus (Ashmead) (Cazier 1962). 
distribution ( Map i). This species ranges from central Florida 
north to Massachusetts, southern Ontario, southern Illinois, eastern 
Kansas, and northeastern Texas. The range of electa apparently 
overlaps that of vittigera in the transition zone of eastern Texas as 
far south as Brownsville (see also Foote i960). 
Zonosemata vittigera (Coquillett) 
Zonosema vittigera Coquillett, 1899, Jour. N. Y. Ent. Soc. 7: 261. [Lectotype 
by present designation; locality: Eagle Pass, Texas; (J. Cram coll.) 
(USNM, type no. 4398)]. 
Spilographa vittigera Aldrich, 1905, Smith. Misc. Coll. 46: 604. 
Zonosemata vittiigera Benjamin, 1934, U. S. Dept. Agri. Tech. Bull. 401: 
18, fig. 15. — Phillips, 1946, Mem. Amer. Ent. Soc. 12: 100-101, figs. 
