A. A. GIRAULT. 19 



ginal vein. The distal end of the submarginal vein and the marginal 

 vein are stouter than the remaining portions of the venation. Indica- 

 tions of the bladder-like appendages of the funicle joints present but 

 not closely defined in the specimens at hand ; minute. Size of body 

 moderate to small for the group, visible to the unaided eye. 



These descriptive notes were made from a slide bearing the 

 following labels and sent by Zehntner to Dr. L. O. Howard, 

 who loaned it to me for study : " Chaetosticha nana Zehntner. 

 7 9 's ; 3 cf' s. Aus Diatraea striatalis eiern. (Java)" and 

 " 7345." The slide bears in reality 2 cf s, 2 9 's of nana and 

 1 cf , 5 9 's of a larger species, an apparently undescribed 

 species of Pentarthron Riley*. The first label is in the hand- 

 writing of Zehntner. 



2. Trichograiiiinatoiclea lutea species nova. 



This species is closely related to nana but can be separated 

 from it by observing the differences in length between the 

 marginal cilia of the fore wing and those of the caudal mar- 

 gin of the posterior wings. In nana those two sets of cilia 

 are about equal, whereas in lutea the cilia of the caudal wings 

 are distinctly longer than those of the fore wing distad. The 

 fore wings in hitea are also fumated less further distad, only 

 to the middle of the marginal vein and are distinctly broader 

 in relation to their marginal cilia, the latter being only about 

 a fifth as long as the greatest wing width. The knob of the 

 stigmal vein is also different in this species, being less 

 rounded, more ovate. 



Normal position. 



Female. — Length 0.85 mm. Larger than nana, visible to unaided 

 eye. General color orange-yellow, marked with dusky, the eyes and 

 ocelli carmine, the proximal half of the abdomen and cephalic third of 

 the thorax dusky ; tegulae dusky yellow ; antennae and venation dusky 

 yellowish, the scape paler, the legs pallid yellowish with the exception 

 of the darker tarsi. Wings hyaline, the fore wings, however, distinctly, 

 not pronouncedly, fumated proximad, the fumated area extending 

 distad only as far as the middle of the marginal vein, its distal margin 

 oblique, caudo-distad. Mandibles apparently with five teeth. Parap- 

 sidal furrows complete; abdomen cylindrical, about equal in length 

 to the head and thorax combined. Ovipositor not exserted, the valves 

 not prominent. 



* Now known to be ininutum (Riley). 



TRANS. AM. ENT. SOC. , XXXVII. 



