from the Rio Nuutla, State of Vera Cruz. 283 



fifth segments showing more or less distinctly a slight silvery 

 pollen, rest of abdomen less distinctly so. Black of abdomen 

 more or less shining throu;i;h tlic pollen. Legs black, 

 proximal third or fourth of hind fiMiiora yellow ; coxa? and 

 trochanters redtlish yellinv, with I he dense silvery |)ollen of 

 pleurse extending over them. Ilind tibia> short ciliate on 

 apical half. Pulvilli and claws elongate, latter wholly bhickisli, 

 often with tips fractured and niissini;-, as mentioned in Tri- 

 c//o/?or/(/, pulvilli whitish or yellowish fuscous. Wings evenlv 

 black along whole costa to tip for about one half of their 

 width, the black filling out all three basal cells, but with 

 apical cell clear or a little clouded across tip. Rest of wings 

 nearly clear, subhyaline, sometimes faintly tinged with dilute 

 smoky. Teguire very large, white, sometimes watery whitish; 

 alulets small, about one sixth to one eighth size of tegula?, 

 white, sharply contrasted in colour with rest of wing. 



Female. — Differs in face and orbits being entirely silvery 

 white, not golden. Abdomen sliglitly less broad; abdominal 

 spots more narrowed oblique, not so extensive on dorsum of 

 third segment, not notched on inside, thus leaving the median 

 black evenly and rapidly widened posteriorly from its least 

 width at or behind middle of second segment ; fourth and 

 fifth segments more distinctly silvery poUinose, rather con- 

 spicuously so in comparison with the males. One male, 

 however, has the abdominal markings and pollen almost as 

 in the female. Claws and pulvilli very short. Sixth 

 abdominal segment much less apparent. 



Phania simillima, Fabr., Wied., apparently belongs to the 

 subgenus Penyiapoda, and is thus nearly allied to the present 

 species. Its greater size (about 10 millim.), the reddish- 

 brown instead of pale yellow abdominal spots, and the reddish- 

 brown bases of femora and hind tibi« preclude the identifica- 

 tion with it of the present form. 



43. Cistogaster occidua, Walk. (syn. C divisa, Lw.). 



One female. San Rafael, March 9. 



Length 5 millim. 



This specimen is perfectly normal, except that the pollen 

 of mesonotum and front has a brassy tinge, and the silvery 

 fascia is present on second segment of abdomen. Apical cell 

 extremely short, petiolate. 



In the first section of this paper I recorded a male specimen 

 of C. immaculata, Macq. (No. 16). I must again, for tlie 

 last time, correct my statement on the synonymy of these 

 species. The remarks there should read as follows : — The 



20* 



