425_ 



and below the base of the cleft is a small blackish brown spot, isolated except 

 in our darkest specimen, in which it is continued obliquely toward the costa 

 by a faint dark shade. In the outer margin of the second lobe there are four 

 short, dark dashes on the tips of the anal, cubital and third median veins. These 

 are very faint in some specimens. A similar but heavier spot occurs on the 

 inner margin of the first lobe a short distance before its apex at the tip of 

 the fifth radial. Two vague dots sometimes appear on the costal margin of this 

 lobe, one just before the apex and the other almost opposite the one on the 

 inner margin. Fringes concolorous, slightly darker toward the apex of the wing 

 and with their bases slightly paler. Secondaries somewhat paler than primaries 

 and with a more grayish tinge. Fringes concolorous with slightly paler bases. 



"Expanse IS to 18 mm. 



"Described from the following series : Holotype male, Brownsville, Tex., 

 March ; paratype male, same locality ; allotype and six paratypc females, San 

 Benito, Tex., March and April. (Collection Barnes.) 



"Paratype male, Brownsville, Tex., March, and paratype female, from San 

 Benito, Tex., April, in United States National Museum, type Cat. No. 23495. 



"This species appears to be allied to Oedcmatophorus paleaceus, O. stram- 

 invus. 0. kcUicotti and related species. It differs from the first two in the pres- 

 ence of the terminal dots and from the last two in that the dot in the disc of 

 the primaries is not contiguous to the base of the cleft. The form of the male 

 genitalia also differs from that of any related species known to us. We have 

 been unable to place it as a described Mexican or Central American species." 



Simultaneously with this description there appeared the following 

 notes by Mr. Heinrich on larvae and pupae reared from the leaves 

 of a composite: 



"The pterophorid larvae have only two setae on the prespiracular shield 

 of the prothorax and setae IV and V approximate on the proleg-bearing abdom- 

 inal segments, as in the Pyralidae with which they are affiliated. They have, 

 however, in distinction from the Pyralidae proper, long stem-like prolegs and 

 a greater or less development of secondary setae. The crochets are also pe- 

 culiar, being uniordinal, few in number (6 to 8 in the genus Oedematophorus), 

 and arranged in a quarter circle opening outwardly. In O. vcnapnnctus the 

 secondary hairs are confined to a row of 5 to 8 in the area normally occupied 

 by seta VI. The body tubercles are somewhat produced, especially on the 

 prothorax and tenth abdominal segment, and the hairs themselves are swollen 

 and bulbous. In addition to the setae there are on all except the first thoracic 

 and the last abdominal segments several finger-like projections from the skin. 

 On the abdomen these arise back of setae I, II, III, IV and V from the base 

 of their tubercles and in the area back of the spiracle and seta group IV- V. The 

 prothorax is somewhat produced dorsally, and the head is capable of retraction 

 under the cover of this rooflike projection. 



"In the pupa the venter of the eighth, ninth, and tenth segments is deeply 

 concave with the lateral edges fringed by rather short flexible setae. The 

 ventral edge of the tenth segment and the anterior margins of the concavity 



