July .S97.] 



PSrCHE. 



93 



On eacli side a line of oblique whitish elong- 

 ate linear markings reaching hind margin 

 of segnnents. Dark parts of abdomen with 

 black hairs, light parts with whitish hairs. 

 Legs mostly brown, middle and hind tibiae 

 and proxiinal half of front tibiae brownish- 

 vellow. Middle and hind femora white- 

 hairy, also light parts of tibiae. 



S. Tabaniis intoisivits n, sp. Two 

 5 s. West Fork Gila, July 13 to 16. 

 Taken from horses. 



Length, 14 mm. Eyes (not revived; uni- 

 colorous cupreous-brown, without apparent 

 stripes. Front almost imperceptibly nar- 

 rowed anteriorly, parallel portion about 3.4 

 times as long as vertical width. Callosity 

 subround, more or less irregular, notched 

 above, with connecting line to subcallus, 

 which is nearly as wide as callus proper, 

 in neither case denuded, with a distinct or 

 nearly obsolete brown tinge on each side. 

 A distinct or subobsolete brown tinge at 

 vertex. Callosities reddish-brown, but little 

 darker than the reddish-yellow or yellowish- 

 red part of front next antennae. Front 

 otherwise grayish-white pollinose. First 

 anlennal joint ending in a sharp point on 

 upper edge at an acute angle, its apical width 

 a little greater than width of basal portion 

 of tiiird joint; second joint short, ending in 

 a spur on upper edge; basal part of third 

 joint not quite so wide as long, the process 

 ending in a hook-like angle (;'. e., there is a 

 very short minute spur projecting anteriorly 

 from angle of process). Annulate portion 

 considerably shorter than basal, rather stout. 

 AntenrKie wholly deep black, with only base 

 of first joint slightly reddish in one speci- 

 men, and all but upper anterior point of 

 first reddish-yellow in the other. Palpi 

 white-hairy, in one yellowish-white with no 

 apparent black hairs, in the other very pale 

 yellowish with but few black hairs. Face, 

 pectus and pleura white-hairy. Thorax and 

 scutellum whitish pollinose, with four heavy 

 blackish vittae on thorax; scutellum reddish 



on apex or wholly so, witli reddish-fellow 

 on adjoining posterior part of thorax extend- 

 ing extensively on sides. Abdomen soft 

 black or brownish-black, first segment with 

 a whitish spot in middle; second with an 

 oblique white marking on sides widened 

 posteriorly and reaching hind margin, and 

 with a narrow white hind border on median 

 portion. Third segment with a subsemicir- 

 cular or triangular median white spot on 

 hind margin, and an oblique lateral marking 

 smaller than that of second segment. Fourth 

 with a large median white triangle reaching 

 front margin, and small lateral spots faint 

 or subobsolete. Fifth with a small white 

 median triangle, lateral spots faint or sub- 

 obsolete. Sixth and seventh segments show 

 the median and lateral white only when the 

 insect is held on a level with the eve. Legs 

 as in gilaniii. 



9. Tabaniis pjtnctifer O. S. One 

 $ , am! one ? . Head of East Fork 

 Gila, DD Bar ranch, July 22. 



SYRPHID.AE. 



10. Eristalis latifrons \-AX. maculi- 

 peiiuis n. xar. One 9. Head of East 

 Fork, Jidy 23. (.See Psyche, 1S97, p. 

 40.) Also numerous specimens from 

 the Mesilla Valley of the Rio Grande, 

 etc. 



I propose this name to distinguish 

 tlie variety, whose characters I pointed 

 out in Trans. Am. Ent. Soc. xxii, p. 

 49. It is principally distinguished by 

 the hrownish cloud on the wings. 



CONOPIDAE. 



11. Zod/oii fiilvt'fro?ts Sny (typical 

 form). One $ . West Fork Gila, 

 July iS. Length, 6 mm. This spec- 

 imen belongs to the typical form, or 

 that described l)y Say himself as fiilvi- 



