621. 

 LUCINA FASCIATA. 



Order Diptera. Fam. MuscidtE. 



Type of the Genus, Lucina fasciata Meig. 

 LuciNA Meig., Curt. 



Antentue inserted on a projecting part in front of the forehead, 

 rather small, remote, divaricating and slightly drooping, 6- 

 jointed, basal joint small, somewhat cup-shaped, 2nd much 

 larger and very bristly, 3rd the largest subovate, compressed, 

 pubescent, 4th a minute cup-shaped joint attached to the back 

 of the 3rd near the base, 5th slender, oblong, 6th a long pu- 

 bescent seta rather stout towards the base (3). 

 Labrum shorter than the lip, hollow, broad at the base, acumi- 

 nated (16). 



Tongue nearly as long as the lip, slender and acute (c). 

 Maxillce imperfect (e). Palpi large, nearly as long as the lip, 

 clavate and pilose, the base membranous and compressed (/). 

 Lip large bilobed hairy and striated {g) . 

 Head transverse, triangular -ovate, the crown depressed, bristly towards 

 the base ; face naked, concave, the forehead projecting considerably: 

 eyes rather small, lateral, orbicular, remote : ocelli 3 in triangle on 

 a small tubercle at the base of the crown. Thorax ovate-truncate : 

 scutel semi-ovate bristly and elevated. Abdomen short, depressed, 

 and ^-jointed, loith tufts of hair on each side the basal segment ; the 

 apex incurved horny and globose in the males, acuminated and tubu- 

 lar in the females (7). Wings incumbent in repose, and much longer 

 than the body, the Srd and 4th longitudinal nervures approximating 

 at the apex : halteres capitate. Thighs thickest in the males, espe- 

 cially the hinder pair, which are inflated and armed with spiny 

 bristles beneath: tihids pubescent only, intermediate with a few strong 

 bristles at the apex, hinder pair curved: tarsi of equal length, slightly 

 dilated, 5 -jointed, basal joint shorter in the hinder than in the other 

 feet, the remainder obtrigonate, excepting the penultimate which is 

 lunate : claws acute : pulvilli bilobed. 



Fasciata Meig. v. 6. p. 2. — Curt. Guide, Gen. 1316. 1. 



Ferruginous ; face, margins of eyes, and underside of thorax 

 silky- white : eyes and a lanceolate stripe on the crown blackish : 

 thorax with 2 gray and 3 cinereous stripes of equal breadth 

 with 6 or 8 black dots on the anterior portion, the sides as well 

 as the margin of the scutel silky white : abdomen, excepting the 

 apex, slate-colour, the sides of each segment clothed with pale 

 pubescence bearing subtrigonate spaces down the back : costa 

 of wings yellowish fuscous, the transverse nervures with 3 black 

 spots on the disc ; legs a little hoary, an incomplete brownish 

 ring near the apex of the hinder thighs, and another at the 

 centre of their tibia; ; the apex and tij)s of tarsi fuscous. 



In the Cabinets of Mr. Haliday, the Author, 8iC. 



