December,' 13] FELT: ARTHROCNODAX CAROLINA 489 



circmnfili are normally developed and not unusually thick or heavy. Mesonotum 

 dark reddish brown. Scutellum and postscutellum yellowish. Abdomen yellowish 

 brown. Halteres, coxae and femora basally yellowish or pale straw, the distal 

 portion of femora, tibise and tarsi slightly darker; claws slender, strongly curved, 

 simple; pulvilli nearly as long as the ckws. Genitalia; basal clasp segment long, 

 stout, terminal clasp segment long, tapering; dorsal plate long, broad, deeply and 

 triangularly emarginate, ventral plate short, broadly rounded. 



Female. Length .75 mm. Antenna? extending to the fourth abdominal segment, 

 sparsely haired, fuscous yellowish; 14 segments, the fifth with a stem one-fifth the 

 length of the cylindric basal enlargement, which latter has a length a little over twice 

 its diameter and sparse whorls of stout setaj basally and apically; terminal segment 

 slightly produced, with a length over thrice its diameter, broadly rounded apically. 

 Palpi; the third segment with a length about two and a half times its diameter, 

 narrowly oval, the fourth segment one-fourth longer than the third, more 

 slender. Color nearly as in the male, except that the thorax and abdomen are more 

 orange. Ovipositor short, the terminal lobes narrowly oval and thickly setose. 

 Color characters from microscopic preparations and, therefore, of only approximate 

 value. TypeCecid. a2461. 



N 



Lepidoptera Breeding on Evening Primrose. Last year I found an interesting 

 large-flowered evening primrose {Oeyiothera hewetii Ckll., Proc. Biol. Soc. Wash., 

 XXVI, p. 203) in New Mexico, and secured a living plant for my garden at Boulder, 

 Colorado. This plant, in the summer of 1913, grew to a very large size, and furnished 

 the material from which the species was described. When gathering the seeds, 

 I removed large numbers of whole pods, to save time, and presently (October) found 

 that many small moths were issuing from them Most of these were Mompha 

 brevivittella Clemens, but several were strongly marked with white, and belonged to 

 Mompha circumscriptella Zeller. Although the moths were so abundant, they did not 

 prevent me from gett ing enough seed to supply all my correspondents interested in 

 Oenothera. It must be considered doubtful whether they are really injurious, since 

 the normal crop of seed is enormously greater than would be required for the pros- 

 perity of the plant, supposing only a small fraction to grow. A third Mompha, 

 M. pecosella Busck, has been found by me on the ITniversity Campus at Boulder, 

 but it has not been bred. I am indebted to my kind friend Mr. Aug. Busck for the 

 determination of all the moths. He tells me that at Dallas, Texas, Mr. W. D. Pierce 

 bred M. circumsciptella from Galpinsia hartwegi. Doubtless the species of Mompha 

 feed on various evening primroses, and presumably the common native host of those 

 attacking Oe. hewetti in my garden is our very abundant Oe. cockerelH Bartlett inde 

 Vries, 1913. 



T. D. A. COCKERELL. 



Correction 



Chinch Bug Egg Parasite. There seems to have been a somewhat ambiguous 

 and unsatisfactory statement edited into the s(-ientific note appearing on pages 425- 

 26. The original stated in effect that Mr. A. B. Gahan (who will describe the species) 

 concluded that the parasite represented a new genus and species of the Proctotrypidse, 

 a finding confirmed bv Mr. Crawford of the United States National Museum. 



E. P. Felt. 



