EKTOMOLOGY OF COLORADO. 345 



469. Rhodites tuberculator Riley, MS., Ckll., Swift Creek, abundant; see 



"West. Anier. Sci." April, 1888, p. 60. 



470. Rhodites ignota O. S., West CliflT, abundant. E. to New Jersey region. 



Down to near Fort Collins (Gillette). 



471. Rhodites polita Ashm., West Cliff, gall only observed. AKso recorded from 



California and Dakota (Ashinead). Hyra. Colo. p. 14. 



472. Rhodites spinosellus Ckll., West Cliff, gall only observed; see "Entoni." 



March, 1890, p. 7.5; "Can. Ent." 1890, p. 39. Also high-alpine. 



473. Rhodites globosus Ckll., West Cliff, gall only observed ; see "Entom." 



March, 1890, p. 75. 

 For further information about the distribution of Rhodites in Colorado, 

 see Gillette "Ent. News," 1892, p. 246. 



474. Holcaspis g-lobulus Fitch. Galls on Quercus undulata. supposed to be this. 



The species H. globulus occurs in New York and Connecticut. 



475. Dryophanta? sp., small pubescent galls on midrib of underside of leaf of 



Quercus undulata. 



UROCERID^. 



476. Urocerus flavicornis Fab., Ula (E. L. B. Howard). Also high-alpine and 



sub-alpine. Packard records it from Labrador. 



477. Urocerus areolatus Cr., Willow Creek, Cusack Eanch, Aug. 14. S. to N. M. 



TENTHREDINID^. 

 XYELIN.4£. 



478. Xyela minor Nort., West Cliff, May. N. to Canada. 



TENTHREDININ/E. 



479. Labidia opimus Cr., near West Cliff. N. to Vancouver Island. 



480. Monostegia obscurata Cr., West Cliff, May 25, on herbage by the creek, 



abundant; Colorado only (Cresson, 1887). ® 



481. Monophadnus scelestus Cr., West Cliff, May 19, by sweeping Thermopsis ; 



and Aldrich Ranch, on SmUacina stellata, June 1. W. to Nevada. 

 182. Dineura pallida Ashm., Hym. Colo, p 15. 



483. Dolerus similis Nort.. West Cliff, May 23 and 24; Aldrich Eanch, on low 



lierbs, June 1. N. to Canada. 



484. Dolerus bicolor Beauv., West Cliff, May 25. N. to Canada. 



485. " abdominalis Nort., near Swift Creek. N. to Canada. 



486. " aprilis Nort., West Cliff, May 19 and May 22; Aldrich Eanch, on 



low herbs, June 1. N. to Canada. 



487. Messa salicis Ashm. {^= salicum Ckll.), Freer Emch, bred from larvte on 



willow; see "Psyche" 1889, p. 284. Hym. Colo. p. 15. 



488. Nematus concolor Nort., West Cliff ; see "Entom." 1890, p. 282. N. to 



Canada. 



489. Nematus lateralis Nort., near Swift Creek. E. to Maine. 



490. Euura salicis-ovum Walsh, West Cliff, galls common, but fly not reared. 



Throughout Mississippi Valley and east; following distribution of 

 Salix cordata, to N. H. (Marlatt in Howard litt.). 



* (Cresson, 1887.) This citation, here and elsewhere in the paper, refers to 

 Mr. E. T. Oesson's Catalogue of the Described Hymenoptera of America north 

 of Mexico. 



TRANS. AM. ENT. SOC. XX. (44) DECEMBER, 1893. 



