567 



The genitalia are asymmetrical; the anal tube is large and broad, 

 on the left side it is produced into a large, blunt spine, the right 

 side is expanded with two small projections on its edge; the pygofer 

 on medio-ventral edge produced into an acutely angular process, the 

 left margin slightly curved, the right produced into a flat, quadrate 

 process about the middle; genital styles flattened, angular, narrowest 

 at base, apex truncate; penis long, jointed near apex, which is mem- 

 braneous, with functional orifice at apex, the penis is surrounded by 

 a long, tubular sheath with two small spines at apex and a long spine 

 at base. 



Stramineous, slightly darker over mesothorax. Tegmina hyaline, 

 slightly stramineous, veins same- color, tubercles numerous, small, bearing 

 light macrotrichia ; apical veins tinged with brown, especially at apices, 

 cross veins also brownish; wings hyaline, veins yellowish. 



Female. Length 3 mm., tegmen 3.4 mm. Similar to male. The 

 ovipositor brown. 



Described from four males and three females from Tutuila, 

 Samoa, from 750 to 1200 feet elevation. (Kellers, April to 

 December, 1918.) Type No. 1004. Named after the navigator 

 who is credited with having been the first European to see 

 the Samoan islands and named them Bauman Islands. 



Leirioessa lamononi sp. n. 



Male. Length 2.8 mm., tegmen 4 mm. Typical of the genus and 

 closely related to the genotype, L. tortricomorpha Kirk. Head, pronotum 

 and mesonotum brown, apex of clypeus and legs lighter, abdomen 

 slightly darker. Tegmina light brown, a dark mark from base of costal 

 cell to middle of claval margin, where it is darker; a broader band 

 from middle of costa across tegmen to apex of clavus, the margins 

 being darker, a small dark mark at stigma, another on hind margin 

 slightly beyond clavus, a dark mark across apical radial and apical 

 median cells; veins same color as membrane, tubercles minute, brown; 

 wings fuscous with darker veins. 



Ventral edge of pygofer emarginate with an acute angular projec- 

 tion in the middle; anal segment long, apex obtusely pointed, lateral 

 margins deflexed and inflexed, anus about one-third from apex; genital 

 styles flat, narrow at base gradually widening to rounded apex, angular 

 at apical third. 



Female. Length 3.8 mm., tegmen 5 mm. In color slighly darker 

 than the male. In this genus the abdominal sternites are not V-shape 

 but transverse, the base of the ovipositor being near the apex of 

 abdomen and projecting well beyond. 



Described from one male and two females from Tutuila, 

 Samoa, 700 to 1200 feet elevation. (Kellers, April, June, 



