Colletes fasciatus, Smith, 1853

Kuhlmann, Michael, 2007, Revision of the bees of the Colletes fasciatus-group in southern Africa (Hymenoptera: Colletidae), African Invertebrates 48 (2), pp. 121-166 : 123-127

Key to the species of the Colletes fasciatus -group

1 Females: antennal flagellum with ten segments; metasoma with six visible terga ...................................................................................................................... 2

– Males: antennal flagellum 11-segmented; metasoma with seven visible terga ...... ............................................................................................................................ 19

2 Hind femur and tibia with reduced scopa ( Figs 3, 4 ) ........................................... 3

– Hind femur and tibia with well developed scopa ( Fig. 2 ) .................................. 11 3 Hind femur largely orange-brown to red; in many species legs completely orangebrown to red .......................................................................................................... 4

– Hind legs black to dark brown; tarsus sometimes red-brown............................... 8

4 Fore and mid tibiae largely or completely blackish or brownish, sometimes to a small extent reddish .............................................................................................. 5

– Fore and mid tibiae completely orange-brown to red, sometimes blackish or brownish basally and/or apically .......................................................................... 6

5 T1 with area between punctures finely shagreened, dull; apical tergal depressions broadly translucent and disc posteriorly with narrow red margin; T6 narrowly rounded apically .............................................................. infracognitus Cockerell

– T1 with area between punctures smooth and shiny; only apical tergal depressions narrowly translucent; T6 broadly rounded apically ................. stellatus Cockerell

6 Maximum width of facial fovea about diameter of antennal flagellum ................. ......................................................................................................... eardleyi sp. n.

– Maximum width of facial fovea about 2× diameter of antennal flagellum .......... 7

7 Apical hair bands of terga broad, medially nearly completely covering depression; hairs on disc of mesonotum long, about 2× as long as diameter of antennal flagellum ................................................................................................... testaceipes Friese

– Apical hair bands of terga narrow, medially covering only about posterior half of depression; hairs on disc of mesonotum short, about as long as diameter of antennal flagellum ............................................................................... albohirtus Cockerell

8 Hind tibia with dense short hairs dorsally ( Fig. 3 ); apical tergal depressions broadly translucent yellowish to reddish ........................................... laticaudus Cockerell

– Hind tibia without dense short hairs ( Fig. 4 ); apical tergal depressions narrowly translucent reddish to brownish ............................................................................ 9

9 Metanotum medially with course and short, erect hairs ( Fig. 2 ) ........................ 10

– Metanotum medially with thin, longer hairs .............................. karooensis sp. n.

10 Propodeal triangle entirely covered with coarse transverse carinae...... obscurus Friese

– Propodeal triangle dorsally with few, very weak transverse carinae ...................... ................................................................................................. cyanonitidus sp. n.

11 Apical hair band of T2 as broad as disc; in C. zygophyllum sp. n. width of apical hair band about 2/3 width of disc and scutellum with abundant black hairs ...... 12

– Apical hair bands of T2 only about 1/4 width of disc; in C. abnormis sp. n. width of apical hair band about 1/2 width of disc and scutellum without black hairs ...... 15

12 Apical tergal depressions distinctly translucent and disc posteriorly with narrow red margin ......................................................................... aureocinctus Cockerell

– Apical tergal depressions weakly translucent, disc completely black ................ 13 13 Apical hair bands of terga whitish .......................................... zygophyllum sp. n.

– Apical hair bands of terga yellowish brown or brownish orange ....................... 14

14 Apical hair bands of terga brownish orange; that on T3 broader, maximum width 2× width of hind basitarsus ........................................................... fasciatus Smith

– Apical hair bands of terga yellowish brown; on T3 narrower, maximum width 1.5–1.7× width of hind basitarsus ........................................... latefasciatus Friese

15 Malar area short, less than half as long as width of base of mandible ............... 16

– Malar area long, about as long as width of base of mandible or longer ............. 17

16 Apical hair bands of terga narrow; that on T3 medially slightly narrower than width of hind basitarsus; scutellum with black hairs ...................................... gessi sp. n.

– Apical hair bands of terga broad; that on T3 medially slightly broader than width of hind basitarsus; scutellum without black hairs ............................. abnormis sp. n.

17 Apical hair bands of terga narrow; on T2 medially about half as wide as width of hind basitarsus; malar area slightly shorter than basal width of mandible ............. ............................................................................................... cardiurus Cockerell

– Apical hair bands of terga broad; on T2 medially about as broad as width of hind basitarsus; malar area as broad or broader than basal width of mandible .......... 18

18 Malar area shorter, about as long as basal width of mandible; supraclypeal area shiny, surface between punctures smooth ................................ wathmoughi sp. n.

– Malar area longer, about 1.5× longer than basal width of mandible; supraclypeal area dull, surface between punctures finely shagreened .................. genalis Friese

19 S6 with a large lateral tooth directed backwards ................................................ 20

– S6 without teeth .................................................................................................. 22

20 Gonostylus bifurcate ( Fig. 29 ), S7 as in Fig. 28 ...................... knersvlaktei sp. n.

– Gonostylus simple .............................................................................................. 21

21 Gonostylus very narrow ( Fig. 27 ), S7 as in Fig. 26 ...................... schultzei Friese

– Gonostylus thick ( Fig. 23 ), S7 as in Fig. 22 ................................. fasciatus Smith

22 Mid femora broadest near base, forming a near right-angled edge ventrally ..... 23

– Mid femora not broadest near their base and not forming a right-angled edge ventrally .............................................................................................................. 25

23 S7 longer than broad ( Fig. 33 ), gonostylus as in Fig. 32 .... nieuwoudtvillei sp. n.

– S7 broader than long ( Figs 12, 14), gonostylus not as shown as in Fig. 32 ....... 24

24 Gonostylus as in Fig. 13, S7 as in Fig. 12.................................. bokkeveldi sp. n.

– Gonostylus shorter than that of C. bokkeveldi ( Fig. 15), S7 as in Fig. 14.............. .............................................................................................................. gessi sp. n.

25 Hind tarsal segment 2 elongate and slender, more than 3× longer than broad, S7 and gonostylus as in Figs 30, 31 , respectively ........................ cyanonitidus sp. n.

– Hind tarsal segment 2 shorter and wide, at most 1.5× as long as broad ............. 26

26 Gonostylus bifurcate ........................................................................................... 27

– Gonostylus simple .............................................................................................. 28

27 Gonostylus as in Fig. 37 and S 7 long ( Fig. 36 ) .................... denudatus Cockerell

– Gonostylus as in Fig. 35 and S 7 short ( Fig. 34 ) ......................... katharinae sp. n.

28 Lobes of S7 strongly emarginate apically ( Figs 6, 8, 38 ) ................................... 29

– Lobes of S7 different, only slightly emarginate apically or without emargination ............................................................................................................................ 31

29 Lobes of S7 with a single emargination ( Fig. 38 ), gonostylus as in Fig. 39 .......... .................................................................................................... karooensis sp. n.

– Lobes of S7 with two emarginations apically ( Figs 6, 8) ................................... 30

30 Gonostylus broad ( Fig. 9), S7 as in Fig. 8............................. inornatus Cockerell

– Gonostylus narrow ( Fig. 7), S7 as in Fig. 6.................................. abnormis sp. n.

31 Scutellum and inner eye margins with black hairs intermixed ........ genalis Friese

– Scutellum and inner eye margins without black hairs ........................................ 32

32 Tarsi completely and tibiae at least partly light yellowish to pale reddish brown ................................................................................................... testaceipes Friese

– Tarsi and tibiae black, sometimes partly dark reddish brown ............................ 33

33 Hind basitarsus slightly emarginate to concave ventrally .... albohirtus Cockerell

– Ventral margins of hind basitarsus straight ......................................................... 34

34 Apical hair bands of S2 and S3 medially consisting of very short, dense pilosity, gonostylus and S7 as in Figs 24, 25 , respectively ................ laticaudus Cockerell

– Apical hairbands of S2 and S3 medially consisting of a few long hairs; gonostylus and S7 as in Figs 20, 21 , respectively ............................... aureocinctus Cockerell

Figures

Figs 1–4. (1) Colletes albohirtus, clypeus of female, frontal view; (2) C. genalis, scopa on hind leg of female, dorsal view; (3) C. laticaudus, partly reduced scopa on hind leg of female, dorsal view; (4) C. karooensis sp. n., reduced scopa on hind leg of female, dorsal view. Scale bars: Fig. 1 = 0.5 mm; Figs 2–4 = 0.2 mm.

Figs 28–39. Shapes of male S7 and gonostylus: (28, 29) C. knersvlaktei sp. n.; (30, 31) C. cyanonitidus sp. n.; (32, 33) C. nieuwoudtvillei sp. n.; (34, 35) C. katharinae sp. n.; (36, 37) C. denudatus; (38, 39) C. karooensis sp. n. Scale bar = 0.5 mm.

Figs 18–27. Shapes of male S7 and gonostylus: (18, 19) C. albohirtus; (20, 21) C. aureocinctus; (22, 23) C. fasciatus; (24, 25) C. laticaudus; (26, 27) C. schultzei. Scale bar = 0.5 mm.