Efferia cazieri (Curran)

Scarbrough, Aubrey G. & Perez-Gelabert, Daniel E., 2008, Review of the West Indian species of Efferia Coquillett (Diptera: Asilidae): Part 1. Bahamas, Cayman Islands, Cuba, and Jamaica, Insecta Mundi 2008 (49), pp. 1-29 : 15-16

Efferia cazieri (Curran)

Fig. 1 , 18-20

Erax cazieri Curran, 1953: 5-6 .

Nerax cazieri (Curran) , Hull 1962: 478. Combination.

Efferia cazieri (Curran) , Martin and Papavero 1970: 64. Combination, catalogue.

Types examined. BAHAMAS: South Bimini Isl. (holotype m, AMNH). Paratypes: same locality and collectors as holotype (allotype f, 3 m, 2 f, AMNH); South Bimini Isl. / Bahamas B.W.I./ 2- 9.viii.1951 / C. and P. Vaurie ~ Paratype / Erax / cazieri / Curran ~ Efferia / cazieri / (Curran) / Det. C.H. Martin ~ Charles H. Martin / donation to / FSCA (1 m, FSCA); South Bimini Isl. / Bahamas B.W.I./ vi.1951 / C. and P. Vaurie ~ Paratype / Erax / cazieri / Curran ~ Efferia / cazieri / (Curran) / Det. C.H. Martin ~ Charles H. Martin / donation to / FSCA (1 f, FSCA); same data South Bimini Isl. / Bahamas B.W.I./ vi.1951 / C. and P. Vaurie ~ Paratype / Erax / cazieri / Curran ~ Efferia / cazieri / (Curran) / Det. C.H. Martin ~ Charles H. Martin / donation to / FSCA (2 f, FSCA); same data as holotype except 10.vi.1950 / Cazier and Rindge (1 f, FSCA).

Other specimens examined. Grand

Bahama Isl. / West End / 12.v.1953 ~ Van Voast -

A.M.N.H. / Bahama Isls. Exped. / Coll. L. Govannoli

~ cazieri ~ donation to / FSCA (1 f, FSCA); Gover-

nors Harbor / Eleuthera I. / 4.viii.1972 T.E. Rogers

~ Efferia / cazieri Curran / det. J.Wilcox (1m,

FSCA); San Salvador Island, 9.vi.1978, coll. N .

Elliott (1 m, USNM); same location except, CCFL

Base, 16.vi.1978, coll. N. Elliott (1 f, USNM); same

location except, Jake Jones Rd., 9.vi.1978, coll. N.

Elliott (1 f, USNM); same location except, Dump,

9.vi.1978, coll. N. Elliott (1 m, USNM); same loca-

tion except, 28.iii.1978, coll. N. Elliott (1 m,

USNM); same location except, Dump, 4.iv.1982 ,

coll. N. Elliott (1 f, USNM); same location except,

Jake Jones Rd., 6.vii.1982, coll. N. Elliott; (2 f,

USNM); same location except, CCFL Base,

7.vi.1978, coll. P. Salbert (1 f, USNM); same loca-

tion except, Dump, 8.vi.1978, coll. P. Salbert (1 f,

USNM); same location except, Rd. East Beach

13.vi.1981, coll. H. Oestreicher (1 f, USNM); same

location except, Rd. S. CCFL, 16.vi.1981, coll. D. Figure 17. Male terminalia of Efferia caymanensis Davidson (1 f, USNM); same location except, scrub Scarbrough, lateral view; 17. intact terminalia. growth, CCFL, 16.vi.1981, coll. R. Rutkauskas (1

m, USNM); same location except, CCFL,

9.vi.1978, coll. A.G. Scarbrough (1 f, USNM); same

location except, Sandy Point, 15.vi.1978, coll. A.G.

Scarbrough (1 f, USNM); same location except,

CCFL, 30.v.-6.vi.1979, coll. A.G. Scarbrough (2

m, 3 f, USNM); same location except, Fields S.

CCFL, 28.v-4.vi.1980, coll. A.G. Scarbrough (3 m,

6 f, USNM); same location except, Rd. S. CCFL,

6.vi.1980, coll. A.G. Scarbrough (1 m, USNM) ;

same location except, 4-8.vi.1981, coll. A.G.

Scarbrough (1 m, 2 f, USNM); same location ex-

cept, Rd. N CCFL, 13.v.1981, coll. A.G.

Scarbrough (2 m, USNM); same location except,

Dump Beach dirt road, 11.vi.1981, coll. A.G.

Scarbrough (1 m, USNM); same location except,

Pigeon Creek, 14.vi.1981, coll. A.G. Scarbrough

(1 m, USNM).

Distribution. BAHAMAS, Eleuthera, Grand

Bahama, San Salvador, and South Bimini islands;

May-August.

Remark. Efferia cazieri is distinguished from

congeners by the characters in the key and the

combined characters of the terminalia (Fig. 18-

20). It is similar to E. vauriei but is distinguish

Figure 18-20. Male terminalia of Efferia cazieri (Curran) , from the latter by the slightly dilated wing, thin

lateral views; 18. intact terminalia; 19. gonostylus; 20ablack scutellar bristles, and combined characters b. phallus with aedeagus, aedeagal tubes, and phallic of the terminalia. Also, the anterior scutal setae flanges.

are about as long as the scape, and the pale apices

of the femora are sometimes helpful in diagnosing

the species. The female is further distinguished by the black setose and mostly glossy tergite 7 (sparse brown tomentum dorsally) and the narrow terminalia, at middle about 1/9 as wide as long, about 1/3 as long as the abdomen. See comments below.

Island variations are apparently common in the species. For example, the palpi of Bimini types of Ef. cazieri are white setose with only a few black setae at the apex; the scutellum in both sexes range from a few to numerous black setae. The femora are entirely black. In the San Salvador Island series, the apical 1/3-1/2 of the palpi are black setose. The apical 1/3 of the femora, sometimes dorsum and narrow base of the hind femora are reddish or yellowish-brown. In females, tergite 7 is mostly dense tomentose, brown dorsally and grayish laterally. Only minute differences in the male terminalia were found between the Bimini and San Salvador series. Thus island populations are most readily separated on the bases of the male terminalia .

Figures

Figure 1. Distribution of Efferia in the Bahamas, Cayman Islands, Cuba, and Jamaica.