tucker: collecting insects. Ill 



the fore tibiae and tips of the tarsal joints brown, the last 

 three joints of the fore tarsi wholly brown ; the paler portion 

 of the tarsi whitish. Fore metatarsus one-third longer than 

 its tibia. 



Taken at electric light, in July, on bridge crossing Kansas 

 river at Lawrence, Douglas county, Kansas, by E. S. Tucker. 



Chironomus flaviventris, n, sp. 



Male. — Resembles C flavus, but differs in having darker 

 thoracic stripes. Head testaceous ; antennae yellow, basal 

 joint testaceous, mouth-parts yellow. Thorax, including scu- 

 tellum, metanotum, sternum, and pleura, pale brown, the 

 humeri and the space betw^een the dorsal stripes more yellow- 

 ish. Abdomen pale yellow, apical joints slightly darkened. 

 Genitalia yellow, slender, the lateral arms lanceolate. Legs 

 wholly pale yellow. All hairs of abdomen and legs pale yel- 

 low. Fore metatarsus twice as long as its tibia. Wings 

 cream white, veins colorless. Halteres pale. Length, 2.5 

 mm. 



Female. — Like the male, but shorter, stouter, and with 

 broader wings. In two specimens the thoracic stripes are 

 dark brown. 



Collected at Lawrence, Douglas county, Kansas, in July, 

 at electric light on bridge across Kansas river, by E. S. Tucker. 



Cliironomus attenuatus Walker. 



Two female specimens, which I doubtfully refer to this spe- 

 cies and which agree very well with Walker's description, 

 may be further characterized as follows : Antennae yellowish ; 

 humeri, space between the thoracic stripes and the scutellum 

 yellowish gray ; posterior margins of the abdominal segments 

 more or less distinctly light gray. Fore metatarsus one-half 

 longer than its tibia ; knees and middle and hind tibiae 

 brownish. 



Collected by E. S. Tucker, at Lawrence, Douglas county, 

 Kansas ; June ; July, at electric light ; August. 



