REPORT OF THE STATE ENTOMOLOGIST I907 279 



I have had no European specimens for comparison, but Schiner's 

 and Zetterstedt's descriptions fit my specimens perfectly. 



Chircnomus ithacanensis new name 



A new name for C. caliginosus Johan. ; c a 1 i g i n o s u s 

 is preoccupied for a fossil species. 



Chironomus maturus n. sp. 



Male. The front, outer eye margin, two rather slender frontal 

 tubercles, pale yellow ; antennae dark brown, hairs pale brown ; 

 face, proboscis and palpi subfuscous, basal joint of the antennae 

 gray pollinose. Thorax gray with three blackish stripes, humeri 

 yellowish, scutellum subfuscous, thorax wholly covered with a 

 grayish bloom. Abdomen dark brown, apical one fourth of each 

 segment yellow, which appears silvery wdien viewed from behind ; 

 posterior segments and genitalia nearly wholly grayish, the latter 

 slender, resembling those of C . d e c o r u s . Legs brownish yet- 

 low, the base of each femur, the knees, the fore tibiae and tarsi 

 more brownish, coxae gray, trochanters yellow, pulvilli brushlike, 

 empodium pectinate, anterior tarsi sparsely but long haired, fore- 

 metatarsus about one third longer than the tibia. Wings hyaline, 

 anterior veins yellowish brown, cross vein dark brown, cubitus 

 forks under the cross vein. Halteres yellowish. Length 7 to 8 mm. 



Female. Like the male but with broader wings and with 

 slightly longer (proportionally) metatarsus. Ithaca, N. Y. Early 

 spring species. 



Chironomus redeuns Walker 



Specimens from Ithaca, N. Y., Illinois, and Boulder, Col., appear 

 to be this species. The species resembles cristatus • and 

 riparius, but is smaller than either, and the foremetatarsus is 

 nearly or quite 1.6 times the tibia in length, foretarsi bare; in color- 

 ing it resembles riparius.. 



Chironomus barbipes Staeger 



A male and female specimen from Harrisburg, Pa. It has pre- 

 viously been recorded from Chicago. 



Chironomus devinctus Say 

 The foretarsi of the male are bare. Erom Old Forge, N. Y. 



