394 (estriDjE. 



reaching wing- margin ; 2nd basal and anal cells subequal ; anal 

 and axillajy veins distinct, not reaching wing-margin. Alulae 

 conspicuously milk-white, standing erect when the wings are 

 folded. The comparatively small alar squamae and the very large 

 thoracic squamas are milk-white, with pale yellow margins and a 

 microscopic fringe. Halteres dull yellowish, with darker knobs. 



Lengtli, 15 mm. 



Eedescribed from a perfect c? and 9 in the British Museum, 

 presented by Dr. P. Brauer. They were bred in the Zoological 

 Gardens, near Vienna, from larvae passed by an elephant which 

 had recently arrived from Bangalore, South India. 



Genus HYPODERMA, Latr. 

 Hypoderma, Latreille, Fam. Nat. Kegue Auim., p. 507 (1824). 



Head genei'ally broader than thorax ; vertex rather flat ; frons 

 slightly but broadl_y prominent; cheeks very narrow, vesiculose ; 

 autennal fovese separated by a narrow ridge. Antennae very 

 short, reposing in grooves (fove^e) ; 1st joint small, 2nd bowl- 

 shaped, almost encircling the nearly globular 3rd joint ; arista 

 bare, generally thick, short, rarely long and thin. Mouth-opening 

 small, proboscis membranous, straight, withdrawn ; palpi absent. 

 Thorax nearly spherical. Ahdome^i generally narrower than 

 thorax ; 5th segment in c5' triangular, curved ventralwards ; last 

 ventral segment before the genitalia bilobed, showing two flat, 

 broad shields ; ovipositor in $ 4-jointed, telescopic. Legs long 

 and slender ; tibiae thin, slightly curved and a little thicker about 

 the middle ; pulvilli very large. Wings : apical cross-vein ])resent, 

 more or less in a line with tlie posterior cross-vein, which latter is 

 parallel witii the hind border of the wing. 



Eange. Europe, Asia, Africa, North Aujerica, 



Life-history . T^he larvae form warbles under the skin of the back 

 in the horse, in oxen and deer, antelopes, goats and other animals. 

 See also p. 385. 



307. Hypoderma crossii, Patton. 



Jiypodenna crossii, Pattoii, Iiid. Journ. Med. Res. x, p. 574, pis. xxx, 

 xxxi and text-iigs. 1-4 ( (^ and § adults, wing, larva, and per- 

 forated goat-skin; (1922). 



d . Length 11*5-12 mm. General colour olive-green with grey, 

 brown and golden hairs. Head 4 mm. wide ; eyes large, some- 

 what approximated, inner margins converging towards vertex and 

 diverging towards face ; upper and middle facets larger than 

 lower facets ; ocellar plate elongated, shaped like an isosceles tri- 

 angle with apex downwards ; frons covered with light brownish 

 hairs ; ptilinal suture well marked, forming a wide slit, its lower 

 edges uniting and coalescing with the ridge which separates the 

 antennal pits ; cheeks dirty grey, covered «'ith light grey hairs ; 

 antennal pits widely separated, shining black, as is also the upper 



