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POMONA COLLEGE JOURNAL OF ENTOMOLOGY 



Abdomen moderately slender, spines not prominent on basal segments ; 

 ninth segment (Fig. 63 D) with six very long stout spines, and anal segment 

 with four equally long ones ; ovipositor large and conspicuous. 



Figure 63. Euthrrps cephalicus 



Measurements: Head, length .10 mm., width .14 mm.; prothorax, Icngtii 

 .12 mm., width .18 mm. ; mcsothorax, width .26 mm. ; abdomen, width .28 mm. ; 

 total length 1.12 mm. (.98 mm — 1.24 mm.), .\ntennse: I, .015 mm. ; II, .040 

 mm. ; III .054 mm. ; IV, .045 mm. ; V, .034 mm. ; VI, .046 mm. ; VII, .008 mm. ; 

 VIII, .006 mm.; total length, .25 mm. Color almost uniform yellow. 



