Kinsey, Ayres: Varieties of a Gall Wasp 



151 



Diplolepis tuberculatrix variety tumida 

 form tumida (Bassett) 



Rhodites twmidus Bassett, 1890, Trans. Amer. Ent. Soc, XVII, p. 60. 

 Cockerell, 1900, Ent. Student, I„ p. 10. Dalla Tone and Kieffer, 

 1902, Gen. Ins. Hymen. Cynip., p. 79; 1910, Das Tierreich, XXIV, 

 pp. 720, 841. Beutenmuller, 1904, Bull. Amer. Mus. Nat. Hist., XX, 

 p. 23; 1907, Bull. Amer. Mus. Nat. Hist., XXIII, p. 639, pi. XLV, 

 figs. 5-7. Thompson, 1915, Amer. Ins. Galls, pp. 22, 45. Felt, 1918, 

 N.Y. Mus. Bull., 200, p. 146, fig. 151 (5-7). 



FEMALE. — Differs from the female of form xerophila only in being 

 almost wholly black, the abdomen tinged rufo-piceous. 

 MALE. — Identical with the male of form xerojjhila. 

 GALL. — Identical with the gall of form xerophila. 

 PvANGE.— Southern Utah (Siler coll.). 



TYPES.— Adults and galls, at the Philadelphia Academy and The 

 American Museum of Natural History. 



We have examined Bassett types, and find this form iden- 

 tical with the following form except in the color of the female. 

 We have a black form of variety coloradensis, and black indi- 

 viduals in melanderi and calif ornica, but have failed to obtain 

 the black form for this variety, altho we bred almost 3,300 

 of the insects. It appears that by a curious coincidence 

 Bassett obtained only the abnormal, less common form of the 

 variety. The red form has not previously been described, and 

 since the red is the normal form our notes on this variety are 

 given under xerophila. 



Diplolepis tuberculatrix variety tumida 

 form xerophila, new form 



Rhodites tuberculator Beutenmuller, 1907, Bull. Amer. Mus. Nat. Hist., 

 XXIII, pi. XLV, figs. 8-10. Felt, 1918, N.Y. Mus. Bull., 200, fig. 

 151 (8-10). 



FEMALE. — Is distinguished from other varieties of the species as 

 follows: Color generally bright rufous with some black; head rufous 

 with small black patches on either side between the mouth and the com- 

 pound eyes; antennas with the first three segments rufous, the remaining 

 segments black; thorax rufous, very distinctly more elongate than in 

 'wasatchensis, without a median depression anteriorly as in irasatchcnisis ; 

 parapsidal grooves distinctly broader and more rugose than in colorad- 

 ensis, broader and less rugose than in wasatchensis; median groove dis- 

 tinct, extending two-thirds the distance to the pronotum, distinctly 

 shorter than in coloradensis, possibly less distinct than in waxa tchoifiis ; 

 mesopleurse bright rufous bordered with black; scutellum rufous; abdo- 

 men bright rufous, darker terminally; first abscissa of the radius an- 



