234 Maine; agricui^tural Experiment station. 1909, 



I. Genus Asiiiduluui Latreille. .'_, 

 Asinduluni. Latreille, Hist. Nat. Crust. Ins. XIV. 290. 1805. 

 Head transversely oval ; middle ocellus smaller than the later- 

 als; proboscis much elongated, deeply cleft (figs. 46, 49), palpi 

 4 jointed, incurved; antennae 2-I-15 jointed, apical joint small, 

 papilliform. Thorax arched; abdomen with 8 visible segments. 

 Legs slender, the femora, particularly the hind pair, stout, the 

 tibicE with spurs and with delicate lateral setae. Venation (fig. 

 87) as figured, resembling that of Platyura. 



Table of species. 

 a. Length 8 to 8-J- mm. ; abdomen with the first 3 segments 

 black, the remaining ones more or less yellow. N. Y., 

 N. H., S. D. I. montaniim. 



aa. Length about 5mm. 



b. Abdomen wholly and thorax mainly black ; fore rr^eta- 

 tarsus .8 as long as its tibia. Canada. 2. coxale. 

 bb. Abdomen and thorax more or less yellow. 



New Hampshire. 3. flavuui. 



I. Asindiiluin uwntanuin Rceder. 

 1887. inontaniini Roeder, Wien. Ent. Zeit. VI. 116. 

 Male and female. Length 8 to 8| mm. Black, epistome yel- 

 low, proboscis (fig. 46) black, antennae fuscous-black. Thorax 

 of the male black with yellow humeral angle and pleura ; of the 

 female and immature males yellow with three black longitudinal 

 stripes ; scutellum yellowish, often infuscated. The first three 

 abdominal segments black, the remaining ones yellow though 

 not infrequently more or less infuscated. Hypopygium yellow- 

 ish brown; the inferior forceps lamelliform. Legs yellow, fore 

 metatarsus f as long as its tibia. Wings (fig. 87) hyaline; api- 

 cally especially on costal margin somewhat smoky. Halteres 

 yellow. White Mountains, N. H. (Cornell University collec- 

 tion) ; Adirondack Mountains, N. Y. ; and S. D. (Aldrich). 



2. AsinduJuin coxale Loew. 

 1869. coxale, Loew. Berl. Ent. Zeitschr. XIII. 132. 4. 

 Male. Length 5 mm. Black, including head, antenn?e, pro- 

 boscis (fig. 49) and body pile. Anterior part of lateral margin 



