47 



knowledge of the biology of the species, along with one specimen from 

 Fort Meade, Fla., April, and three St. Petersburg, Fla., specimens, 

 taken in April. None of the Texas specimens, of which there are 

 forty before the authors, have the broadly pectinate antennae of the 

 true nigrita. There is every indication that there may be two or three 

 species or races represented in the Texas-Florida forms with the nar- 

 rower antennae. The Florida specimens taken in April, and the Texas 

 specimens taken in March and May seem to average slightly larger 

 than those of later date. A single specimen from Brownsville, Texas, 

 is very small. The authors have selected twenty specimens from San 

 Benito, Texas, all taken during August, and all closely matching one 

 another, as types of a new species, described below. 



We are greatly indebted to Mr. Frank M. Jones for the gift of 

 some Psychid material, and for highly valued notes, among which he 

 agrees with the specific distinctness of the Texas forms from typical 

 nigrita, and further states that in his specimens of the latter species 

 the branch of the anal vein of the primaries which runs to the inner 

 margin arises much nearer to the base of the wing than shown in the 

 figure in the "Contributions." Examination of the "Type $ " (Holo- 

 type) shows this vein split into three parts, none of which actually 

 make contact with the inner margin. The veination in the Psychidae 

 seems extremely variable. 



Type localities and number and sexes of types of M. nigrita "Type $" 

 and larval sack, Everglade, Fla., April 8-15; 3 $ "Cotype(s)" (Paratypes), 

 Everglade, Fla., April 8-15; 1 $ "Cotype", Fort Myers, Fla., April 24-30; and 

 the apparently not conspecific "Cotype", mentioned above; in the Barnes Col- 

 lection ; 1 S "Cotype", Everglade, Fla., April 8-15, Collection F. M. Jones. 

 Manatha jonesi, sp. nov. 



Entirely similar to M. nigrita, B. & McD. in superficial appearance, perhaps 

 averaging very slightly smaller. Antennae of the male less heavily pectinated 

 than in nigrita, the pectinations being fewer, and little more than half as long. 

 The veination appears variable, but in the specimens examined, nigrita shows 

 the primary veins 4 (M^) and 5 (M^) connate from the cell; whereas in jonesi, 

 these veins are stalked. This is probably a very undependable character, but 

 seems to hold true in the majority of specimens. 



Type locality San Benito, Texas. 



Number and sex of types: S Holotype, Aug. 1-7; and 19 $ Paratypes, 

 all August. 



