ENTOMOLOGY 895 
the thorax; tergites of the abdomen extensively reddish brown on the sides; basal 
cells partly infuscated; frons much narrower than in the female, but the eyes still 
broadly separated beneath the ocelli. Length, 7.5 to9.5mm.............. C’. brucet. 
Female: Mostly black, with nearly the basal half of the second abdominal tergite and the 
- base of the venter pale yellowish; most of the tergites with gray hind margins. Face 
uniformly gray, without shiny callosities. Dorsum of thorax without distinct 
stripes. Second antennal segment only half as long as the first. Median cross-band 
of wing broad and quite regular, reaching the hind margin. Length, 9 mm. Male 
SEs PS Cs vo R il ee TS a eC i ee Bie w wares a C’. griseicollis. 
8. Face forming a very prominent snout, in profile at least as long as the small diameter of 
the eye, generally longer. Tibiae not conspicuously swollen. Antennae moderately 
slender. Fourth and fifth posterior cells each with a hyaline spot. . 9. 
Snout-like face less prominent in profile, shorter than the small ameter of he aye. 
Tibiae conspicuously swollen. Antennae very slender. Fourth and fifth posterior 
Seller GOUGING EDOls Gr oo Fe kh nade eu eo c eta gel ek bm oa a eoe agen ee ms 10. 
9. Costal border of the wing pale brownish yellow, the same color as the stigma. Black with 
the legs mostly pale reddish yellow; the coxae and knees black; abdomen extensively 
covered with grayish white pollinosity, leaving dorsally median, velvety black spots; 
the hind margins of the tergites more silvery gray. Facial shiny callosities very large, 
but divided by a triangle of gray pollinosity. In the male the wings are more exten- 
sively infuscate than in the female. Length, 8 to 10 mm.......... C’. distinctipennis. 
Costal border of wing nearly black, much the same color as the median cross-band; 
stigma yellowish. General color as in the foregoing. Length,8to9mm. C. stigmaticalis. 
10. Second tergite of abdomen always more or less extensively pale straw-yellow on the 
sides; first and second sternites also straw-yellow; remainder of the abdomen 
varying from entirely black to mostly reddish yellow, with a black spot on the 
second tergite. Legs blackish brown to black; femora more or less reddish yellow; 
basal segments of middle and hind tarsi yellowish white. Thorax with golden yellow 
hairs on the humeral calli, on an oblique band of the mesopleuron in front of the base 
of the wing (extending dorsally to the transverse suture), on the metapleura, and on 
a complete cross-band in front of the scutellum. Length, 7 to 9.6 mm. Male 
similar to the female, but the legs are darker, the basal cells are partly infuscated and 
thie eyes ane separated by, a, Marrow froms......... side. . cece es ae Verne C. longicornis. 
Abdomen entirely black, both dorsally and ventrally; sides of second tergite obscurely 
gray pollinose, rarely somewhat translucent. Golden yellow pile of the thorax re- 
stricted to the humeral calli, the oblique bands in front of the wings, and the meta- 
pleura. Otherwise as in C. longicornis. Length, 8.5 to 11 mm........... C. funebris. 
Chrysops laniger Loew 
Chrysops laniger Loew, 1860, ‘Dipteren-Fauna Siidafrikas,’ I, p. 28 ( 2 a; Cape Colony). 
Ziemannia laniger Enderlein, 1923, Deutsche Ent. Zeitschr., p. 544. Krdber, 1927, Zool. Jahrb., 
Mob. oyet., ULI pp. 179, 183 and 198; figs. 1-3; Pl. Il, figs. 1 and 2; Pl. V, fig. 1, Pl. VI, 
ie, (oo). 
Chrysops wellmanui Austen, 1907, Ann. Mag. Nat. Hist., (7) XX, p. 512 (9; Chiyaka District, 
Angola). Neave, 1915, Bull. Ent. Res., V, p. 299, fig. 8a-b, Pl. X XVII, fig. 3 (9; larva 
and pupa). 
Chrysops cana Austen, 1911, Bull. Ent. Res., II, p. 166 (*; Mosangaleni, 3,000 ft., Kenya Colony). 
Neave, 1912, loc. cit., III, pp. 286 and 313 ( 9 @). 
Chrysops muscoreus “‘Schiner” Kréber, 1927, Zool. Jahrb., Abt. Syst., LILI, p. 198 (as a synonym 
of Ziemannia laniger Loew). 
BELGIAN Conao. — Elisabethville, several females, from August to October 
(Mich. Bequaert and Ch. Seydel). 
NorTHERN Ruopgsia. — Kafue River, one female, October 1923 (Mich. 
Bequaert). 
This interesting Chrysops appears to be restricted to the East-and-South 
