ICHNEUMON-FLIES, PART 2: ACAENITINAE 



567 



Figure 275, 276. — Localities: 275 (left), Arotes decorus; 276 (right), A. melleus. 



4. Arotes melleus (Say) 



Figure 328,b 



Acaenitus melleus Say, 1836, Boston Journ. Nat. Hist., vol. 1, p. 249 (Leconte ed., 

 vol. 2, p. 703); ? . Type: ? , Indiana (destroyed). 



Front wing 9 to 10.5 mm. long in both sexes; female flagellum about 

 0.78 as long as front wing; upper hind third of pronotum with small 

 punctures, separated by about 2.5 their diameter; metapleurum with 

 rather small punctures that are separated by about 1.5 their diameter; 

 second segment of hind tarsus about 2.7 as long as deep in male, about 

 2.0 as long as deep in female; ovipositor sheath about 0.93 as long as 

 front wing. 



Male: Black. Face, frontal orbit, cheek, lower 0.7 of temple, 

 clypeus, labrum, basal 0.6 of mandible, palpi, under side of antenna, 

 a broad postmedian band on flagellum, lower 0.25 of propleurum, 

 narrow hind corner and an tero ventral edge of pronotum, tegula, sub- 

 tegular ridge, irregular longitudinal area in lower part of mesepister- 

 num and lateral part of mesosternum (sometimes broadened to include 

 most or all of mesosternum), mesepimeron, sometimes longitudinal 

 mark in upper hind part of metapleurum, lateral edge and sometimes 

 central spot on mesoscutum, scutellum and postscutellum and small 

 areas to each side of these, irregular apical 0.3 ± of propodeum, and 

 apical band on each tergite pale yellow, the band on the first two 

 tergites with the apical margin narrowly brownish ; mesoscutum some- 

 times partly fulvous; front and middle legs pale yellow, the front 

 femur with a brownish area behind; hind coxa sometimes largely 

 fulvous, always broadty pale yellow beneath; hind femur blackish or 

 more or less fulvous, the extreme apex pale yellow; hind trochanters 

 and tarsi pale yellow; hind tibia infuscate, pale yellow basally and 

 beneath; wings hyaline, the apex of front wing fuscous. 



