8 



Indiana University Studies 



of the Zoology Department, have been liberal in their encour- 

 agement and material help. Mr. S. B. Parish, then of San 

 Bernardino, Calif., introduced me to the Pacific Coast oaks. 

 Dr. Forrest Shreve helped very considerably in my travel in 

 Arizona. Mr. W. H. Vance and Mrs. I. T. Wilson have 

 capably worked in mounting my material for study. For all 

 of this help I am greatly indebted. Most of this work would 

 have been impossible without such cooperation. I have not 

 had access to the paratypes in the private collections of two 

 of the cynipid workers, and I feel that if any injustices have 

 been done their species som_e of the blame is due them. 



The holotypes of all these new Cynipid?e, with one excep- 

 tion, are in The American Museum of Natural History. Para- 

 types have been distributed as widely as possible among the 

 museums, and I shall be glad to lend or give paratypes or 

 other material, as long as it is sufficient, to students of these 

 insects. Any material of these species labelled cotypes should 

 be considered paratypes. 



Andricus californicus (Bassett) 



FEMALE. — B^o^^Tlish rufous, head and thorax hairy; median groove 

 about lacking; areolet large; first abscissa of the radius sharply angu- 

 late; length 3.0-5.0 mm, HEAD: Distinctly narrower than the thorax, 

 broadened behind the eyes; light to dark brownish rufous, tips of the 

 mandibles piceous to black; finely rugose, smoother about the eyes, most 

 rugose between the eyes and the mouth, not densely hairy, almost naked 

 on the front. Antenna pubescent, with 14 or 15 segments, the second 

 almost globose, the third one-third longer than the fourth, the last almost 

 twice the length of the preceding. THORAX: Light to dark brownish 

 rufous; mesonotum punctate and coriaceous, not densely hairy; parap- 

 sidal grooves distinct, complete or incomplete; median groove very short 

 or lacking; anterior parallel lines fine, distinct; lateral lines moderately 

 broad, smooth, naked; scutellum somewhat longer than wide, well 

 rounded posteriorly, rugose, hairy, the anterior depression rugose, 

 smoother laterally, forming more or less distinct foveae; pronotum later- 

 ally rugoso-punctate, hairy; mesopleur^e rugose dorsally, mostly smooth 

 and finely rugoso-punctate, scatteringly hairy. ABDOMEN: Smooth; 

 finely and microscopically punctate posteriorly, naked except for patches 

 of hairs latero-basally, hairs on the edges of the posterior segments, 

 and on the ventral spine and valves; longer than broad, somewhat pro- 

 duced dorsally; second segment covering not more than half the area, 

 edges of segments oblique, well rounded ventrally; ventral spine rather 

 long, slender. LEGS: Including the coxae, uniform in color with the 

 rest of the body; tarsi darker; rather densely hairy; tarsal claws strong, 

 toothed. WINGS: Slightly tinged yellow, most so in the radial and 



