234 MAINE AGRICULTURAL i;xpe;rime;nt station. 1909. 



I. Genus Asindulum Latreille. 

 Asind'Vilum. 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; antennee 24-15 jointed, apical joint small, 

 papilliform. Thorax arched; abdomen with 8 visible segments. 

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

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

 87) as figured, resembling that of Platyiira. 



Table of species. 

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

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

 N. H., S. D. I. montanum. 



aa. Length about 5mm. 



b. Abdomen wholly and thorax mainly black ; fore meta- 

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

 bb. Abdomen and thorax more or less yellow. 



New Hampshire. 3. flavum. 



I. Asindulum montanum Roeder. 

 1887. montanum Rcfider, 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 infrecjuently 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. Asindulum coxale Loew. 

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

 Male. Length 5 mm. Black, including head, antennae, pro- 

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



