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Pomona College Journal of Entomology 



wide as long, witli small senii-globular lateral tubercles near the base, black. 

 Meso- and Mt-UilJiorax — Dark brown with muscle lobes well developed and black. 

 Abdomen — Little wider than the thorax, dark brown, amber, or nearly black, with 

 amber or brownish markings on the dorsum, between the dark transverse bands, 

 and amber around the bases of the cornicles, as well as along the sides. Dark 

 markings along extreme margins, covered with rather long spines. Anal plate 

 well rounded, h/iiry, dark. Cornicli-s — (Figure 233, 1). Short, widest at the 

 base and constricted just below the mouth, which is flared, dusky amber to dusky 

 green throughout, length 0.08 mm., width of base 0.09 mm., width of mouth 0.0() 

 mm. Legs — Normally developed, very hairy, coxae dark brown to nearly black. 



Figure 233. Symdobius macrostachyae Essig 



femora dark throughout, tibiae amber with dark bases and tips, tips with a sharp 

 spur or |)oint on the inner side, tarsi dark (Figure 233, 4). Article I composing 

 about one-fifth of the entire tarsi, including the claws, hairy. Wings — Normally 

 large and venation fairly constant. Primary — Length 2.7 mm., greatest width 

 0.9 mm. Veins slightly clouded, with a de])ression in the margin at the tip of 

 the stigma. Costal vein wide and dark. Subcostal wider than the costal, amber 

 to the stigma. Stigma short, oval with blind tij), dark with lighter streak wliich 

 is a continuation of the subcostal vein, below this light area the color is darkest 

 and the are;i is hairy, length 0.55 nun., width 0.18 mm. Stigmal vein arises near 



