PHORIDAE FROM PARAGUAY. 
437 
2. Bristles of hind tibiae placed along the outer edge of the hind side 
Paraguay.^ „„ 'ji Ph. paraguay ana Brues. 
— Bristles of hind tibiae placed on the side near the inner edge. North 
America. „„ „ „ . . „„ „ ™ „„ Ph. incisaralis Lw. 
3. Hind tibiae entirely without bristles ™ „„ ™ ™ . 4. 
— Hind tibiae with a stout bristle at basal third and a second just before tip. 
New Guinea. „„ „„ „ „„ _ „„ „„ „„ ™ . Ph. papuana Brues. 
4. Front dark brown or black ; proboscis enlarged but not elongated. ||, 5. 
— Front reddish-yellow ; proboscis of female elongated. Bismarck Archipelago. 
Ph. Dolimi Dahl. 
5. Front with the bristles of the middle row forming a straight transverse 
line ; all closer to the occipital margin than to each other. Southern U. S. 
America. „„ „„ „„ ., „„ _ Ph. perplexa Brues. 
— Bristles of middle frontal row forming a curved line, strongly bowed 
upwards. „„ „„ „„ __ „„ _ „„ _ _ A. . . . _ „„ A 6. 
6. Abdomen black, segments narrowly margined with yellow and lighter along 
the median line in the male, black in the female; fork of third vein 
beyond tip of first. West Indies. «_ _ ™ Ph. divaricata Aldrich. 
— Abdomen orange yellow with a large lateral black spot on each segment 
(female) ; fork of third vein opposite tip of first. Paraguay. 
Ph. meridionalis n. sp. 
Phora meridionalis n. sp. 
Female. Length 2*3 mm. Similar to Ph. divaricata Aldrich, but 
larger and differing mainly as set forth above. Brownish-yellow ; the 
front black except lower margin, and the abdomen with a large black 
spot on each side of segments two to five, the spots becoming more 
approximate posteriorly and confluent on the sixth segment. Front as 
wide as its greatest height ; all the bristles strongly reclinate, lower 
pair close together ; first row or four curved down medially, the median 
bristles farther from each other than from the lateral bristle ; next row 
very strongly curved, equidistant, the lateral ones much lower than the 
median ones. Ocelli on a distinct tubercle; occipital margin distinctly 
arched w T hen seen from in front. Surface of front whitish pollinose. 
Antennae a little enlarged, the third joint short ovate, almost triangular, 
with strongly pubescent arista. Postocular cilia enlarged below, small 
above. Proboscis heavily chitinized, slender, porrect, as long as the 
palpi which are flattened, but not enlarged and closely appressed to it ; 
palpi each with four moderately long bristles at the tip. Cheeks each 
with one strong and one weak macrochæta ; sides of face opposite 
antennæ with a macrochæta opposite the base of the antenna. Thoracic 
dorsum rather shining, with one pair of dorsocentral macrochætæ. 
