174 Journal New York Entomological Society, ["^'o'- ^xiii. 



spects there is a fairly close analogy and the species is therefore re- 

 ferred to this genus. 



Male. — Length 1.4 mm. Antennje extending to the third abdominal seg- 

 ment, sparsely haired, yellowish brown ; fifteen segments, the fifth with a 

 stem one-fourth the length of the subcylindric basal enlargement, which 

 latter has a length two and one-half times its diameter and a broad subapical 

 band of long, slender setse ; terminal segment greatly produced, the finger- 

 like apical processes having a length three-fourths the length of the basal 

 enlargement, which latter is somewhat fusiform and has a length about four 

 times its diameter. Palpi : first segment irregular with a length over twice 

 its diameter, the second a little longer and broader, the third as long as the 

 second, more slender, the fourth nearly one-half longer than the third, some- 

 what dilated. Eyes black, holoptic, the mouth-parts prolonged and with a 

 length equal to half the diameter of the head. Mesonotum reddish brown. 

 Scutellum and postscutellum yellowish brown. Abdomen fuscous yellowish. 

 Wings hyaline, the crossvein distinct, though somewhat rudimentary at the 

 juncture with subcosta. Halteres and coxae yellowish. Legs mostly pale 

 straw. Genitalia : basal clasp segment long, slender, strongly curved ; terminal 

 clasp segment greatly produced, very slender and about one-half longer than 

 the basal clasp segment ; dorsal plate short, roundly truncate and thickly 

 clothed apically with stout, recurved spines ; ventral plate apparently reduced 

 to a pair of harpoid organs, the basal portion swollen, the distal half slender, 

 finger-like, smooth ; harpes similar though not swollen basally ; style long, 

 slender, tapering, slightly expanded apically. 



Female. — Length 1.5 mm. Antennre extending to the fourth abdominal 

 segment, sparsely haired, yellowish brown ; fifteen segments, the fifth with a 

 stem one-fourth the length of the cylindric basal enlargement, which latter 

 has a length three times its diameter. There is a scattering subapical band 

 of strongly curved setae ; terminal segment produced, the finger-like apical 

 processes setose and about half the length of the cylindric basal enlargement, 

 which latter has a length four times its diameter. Palpi : first segment irreg- 

 ular, the second one-half longer, more slender, the third a little longer and 

 broader than the second, the fourth longer and more dilated than the third ; 

 claws slender, strongly curved, unidentate, the pulvilli rudimentary. Oviposi- 

 tor short, the terminal lobes broadly oval, narrowly rounded apically and 

 thickly setose. Other characters practically as in the male. 



Both sexes were captured at light, and as they present substantial 

 agreement, aside from sexual differences, in color and structural 

 characters, they are referred to the same species. Type Cecid. a258i, 



Microperrisia pulvinariae new species. 



This species was received from H. S. Smith of the California 

 State Commission of Horticulture and labeled as having been reared 



