AMERICAN DIPTERA. 79 



Liguanea Plain (Kingston) and elsewhere in Jamaica. I have 

 identified specimens of the adults sent me by Mr. Cockerell. The 

 larva) have been known for over a century as attacking man ; also 

 troublesome to animals (see Notes from the Museum, No. 63, Inst, 

 of Jamaica, Oct. 26, 1893 ; and Journ. Inst. Jamaica, i, pp. 372 

 (Jones and Cockerellj and 378). 



ANTHOMYIID^. 



96. Iflydsea sperinophilae n. sp. 



Length nearly 8 mm. — Eyes light cinnamon-brown ; front rather narrow, 

 widening anteriorly nearly in line with face; frontal vitta light brown, sides of 

 front very narrow and silvery pollinose; whole face and cheeks yellowish silvery 

 pollinose. Antennse deep yellow with an orange tinge, second joint moderately 

 short, third about three times as long as second ; arista brown, feathery, yellowish 

 at base ; palpi yellow, with some short black hairs ; proboscis fleshy, yellowish 

 brown at base ; posterior orbits and occiput cinereous pollinose. Thorax blackish, 

 silvery pollinose, leaving four black vittse, the outer ones more interrupted at 

 suture than inner ones ; scutellum and abdomen black, thinly silvery pollinose, 

 in a somewhat marmorate pattern on abdomen and a little more thickly towards 

 bases of segments; venter silvery on sides, pale yellow on median basal jiortion. 

 Legs brownish, femora darker basally and yellowish on lower side distally ; coxae 

 and trochanters yellowish, tarsi dark ; pulvilli yellowish. Wings clear hyaline, 

 tegulfe whitish. 



Kingston, Jamaica. One specimen bred, November 22, from a 

 young Spermophila, probably S. hieolor L. Type in coll. Townsend. 



Similar larv?e have been noticed at Cinchona (5000 feet), Jamaica, 

 in nestlings. They have also been noticed in nightingale (Jlimus 

 orpheus) nestlings at Duncans, Jamaica (see Notes from the Museum, 

 No. 70, Institute of Jamaica, Nov. 22, 1893 ; and Journ. Inst. Ja- 

 maica, i, pp. 381-82). 



Mr. E. Stuart Panton has written me that he remembers seeing 

 nestlings of 31. orphem on several occasions, many years ago in 

 Jamaica (probably in Manchester), with two or three of these larvae 

 on either side of the base of the beak. The only case of the kind 

 ever recorded, so far as I know, is that of Hylemxjia (Aricia) pici 

 Mcq., the larva of which lives in a swelling on the wing of Picus 

 striatus in Santo Domingo. A third case is that of another 'antho- 

 myiid (different from the Jamaican one) which infests birds in 

 Trinidad, and of which I will treat in a separate paper. 



97. Mytlsea sp. ? 



Colorado (Gillette). An anthomyiid, probably belonging to this 

 genus, bred from Pieris rapce. 



TRANS. AM. ENT. SOC. XXII. MXKCH. 1895. 



