250 U.S. NATIONAL MUSEUM BULLETIN 261 



Moloraea lineiceps, new Species ' . " .. 



Figure 236 

 Molomea terminalis (Walker), Schroder, 1959a:42, pi. 6, figs. 74, 76. 

 Misdetermination. 



Length of male 12.0-13.0 mm.; of female 11.1-13.0 mm. Head with 

 median length of crown equal to or slightly less than interocular width 

 and from two-fifths to one-half transocular width, ocelli each equidis- 

 tant from adjacent anterior eye angle and median line, antennal ledges 

 with a very shallow longitudinal depression, not carinate dorsally in 

 lateral aspect. Pronotum slightly rugose on middle of disc which bears 

 very short, sparse, pubescence, posterior portion of scutellum without 

 transverse striations. Forewing with apical membrane including apical 

 cells and apex of costal cell, clavus and corium not punctate. Hindlegs 

 with femoral setal formula 2:1:0. Male pygofer without processes; 

 style very short, not extending posteriorly beyond apex of connective, 

 preapical lobe so large that style apex appears concave ; aedeagus with 

 shaft elongate and with a pair of slender processes, each branched in its 

 basal half, arising from aedeagal base, and an unpaired, slender, 

 tapering, median ventral process arising on basal half of shaft. Other 

 structural characters as in generic description. Ground color of crown 

 and anterior third of pronotum dull yellow with black markings, the 

 latter outlining four areolets on disc of crown. Remainder of pronotum 

 and forewings black mottled with sordid yellow. Scutellum yellow 

 variously marked with black. Face flesh-colored, with a transverse 

 black stripe bordering clypeal suture and occasionally with apex of 

 clypellus black. Legs flesh-colored. Pleura yellow. 



Holotype male, Nova Teutonia, Santa Catarina, Brazil, Oct. 1 6, 1 952 

 (F. Plaumann), on indefinite loan to USNM from NCS. Additional 

 specimens studied from Paraguay; Rio Grande do Sul and Espirito 

 Santo, Brazil; Entre Rios and Cordoba, Argentina. 



This species is closely related to A/, xanthocephala (Germar) but differs 

 conspicuously in its shorter style and in its unpaired median aedeagal 

 process which is lacking in xanthocephala. 



Molomea malkini, new species 



Figure 230 



Length of male 12.3-12.5 mm.; of female 1 1.8-12.9 mm. Head with 

 median length of crown slightly more than half interocular width and 

 approximately three-fifths transocular width, ocelli each slightly 

 closer to adjacent anterior eye angle than to median line, antennal 

 ledges longitudinally sulcate, each carinate dorsally in lateral aspect. 



