Di^ptera of St. Vincent ( West Indies). 273 



CHIRONOMID.^. 



CniRONOMUS. 



Meigen, llliger's Mag., ii., 2G0, 1803. 



Table of Species. 



1. Front metiitursi not more than one-and-a-half times the 



length of the front tibiae 3 



Front metatarsi two or more times the length of the tibite . "Z 



2. Wings spotted spilopteniH, n. sp. 



"Wings not spotted anonymun, n. sp. 



3. Dorsum of thorax yellow, with brown stripes forming 



a V lonr/inidnuH, n. sp. 



Dorsum not so marked 4 



4. Dorsum of thorax with dark brown spots . . iunocuus, n. sp. 

 Dorsum yellow, or brownish yellow, not spotted .... 5 



5. Wholly light yellow sp. 6 



Abdomen brown or black lugnhris, n. sp. 



1. Chironomiis spilopterus, n. sp. (PL IX., fig. 32, wing.) 



S , 9 ■ Face and front yellowish brown. Basal joint of antennae 

 brownish-yellaw ; flagellum brownish, the plumosity of the male 

 blackish grey. Mesonotum brown or yellowish-bi'own, lightly 

 ■whitish dusted ; in well-preserved specimens brown vittate on the 

 sides, and in front in the middle. Pleurae black, in part luteous. 

 Scutellum yellow or yellowish-brown. Abdomen black, with 

 yellowish hair ; in the male, slender ; in the female, broader, and 

 with a whitish posterior margin to the segments. Legs yellow, 

 with rather abundant yellow hair ; femora in part brown or 

 brownish ; front tibite not more than one-half of the length of the 

 front metatarsi. Wings whitish hyaline, with pale blackish spots, 

 which are more distinct when seen obliquely, and situated as 

 follows : One near the base, another near the middle, and a third, 

 near or at the tip of the first posterior cell ; a streak near the 

 middle, and a spot near the tip of the cell in front of the forked 

 cell ; a spot on the posterior branch of the furcation, and one or 

 two in the anal angle. Length lf-2^ mm. 



Eight specimens. 



