Neohybos

Ale-Rocha, R., 2007, New species of Neohybos Ale-Rocha & Carvalho (Diptera, Hybotidae, Hybotinae) from Colombia, Ecuador and Peru, Zootaxa 1503, pp. 33-54 : 34-35

Key to Central and South American species of Neohybos (male)

1 Pterostigma colored ( Figs. 74–76, 78–81 ).................................................................................................. 5

- Pterostigma hyaline ( Figs. 77 ) .................................................................................................................... 2

2 Wing hyaline ( Fig. 77 ); epandrium robust, approximately as long as wide ( Fig. 23 ) ................................ 3

- Wing brownish basally ( Figs. 75 ); epandrium slender, at least twice longer than wide ( Fig. 53 ) ............. 4

3 One posterior dc pair long and strong; abdomen short, approximately 3.5 times longer than thorax length; right hypandrial lobe slender .............................................................................................. N. cooperi sp. n.

- One posterior dc pair lacking; abdomen very long, approximately 5 times longer than thorax length; right hypandrial lobe wide ............................................................................................ N. leptogaster (Melander)

4 Right epandrial lamella approximately twice length of the left epandrial lamella ( Figs.53–55 ); hypandrial lobe triangular ( Fig. 52 )............................................................................................... N. longiventris sp. n.

- Right epandrial lamella as long as left epandrial lamella [ Ale-Rocha & Carvalho (2003, figs. 4–6)]; hypandrial lobe long and slender [ Ale-Rocha & Carvalho (2003, fig. 7)] .................... N. hallexus (Smith)

5 Wing brownish basally ( Fig. 75 ); right bacilliform sclerite with long process bearing two long and thick thorns apically ( Figs. 10, 12 ) ....................................................................................... N. brunnescens sp. n.

- Wing hyaline or homogeneously infuscated ( Figs. 74, 76–81 ); process of right bacilliform sclerite, if present, not as above.................................................................................................................................... 6

6 Scutum wholly pruinose dorsally ................................................................................................................ 7

- Pruinescence absent on anterior portion of scutum ................................................................................... 11

7 Prescutellar disc with one long, strong pair of dc bristles ............................................. N. halteralis (Bezzi)

- Prescutellar disc lacking long, strong dc bristles......................................................................................... 8

8 Right bacilliform sclerite with developed process appearing under inner margin of epandrial lamella ( Figs. 1 , 61 ); color of scutal pruinescence variable..................................................................................... 9

- Right bacilliform sclerite without developed process ( Fig. 31 ); scutum with rust-colored pruinescence..... ............................................................................................................................................ N. cupreus sp. n.

9 Hypandrium with three lobes, median lobe long, slender, sinuous, with a hook-like tip. ( Fig. 65 ); process of right bacilliform sclerite broad and rounded, with tubercles in the margin ( Fig. 61 ) N. schlingeri sp. n.

- Hypandrium with two lobes, right lobe developed and the left lobe reduced; process of right bacilliform sclerite not as above................................................................................................................................... 10

10 Scutum clothed in grey pruinescence with strip of brown pruinescence along line of dorsocentral bristles; right hypandrial lobe inner curved [ Ale-Rocha & Carvalho (2003, fig. 23)] ................... N. luridus (Bezzi)

- Scutum clothed in rust-colored pruinescence; right hypandrial lobe straight ( Fig. 5 ) ........ N. bicolor sp. n.

11 Prescutellar disc with one long, strong pair of dc bristles ......................................................................... 12

- Prescutellar disc lacking long, strong dc bristles....................................................................................... 11

12 Tarsomeres brown; hypandrium with long, slender clavate median lobe; phallus with a brush of long, stout bristles distally ( Fig. 48 ) ........................................................................................... N. fuscipes sp. n.

- First and second tarsomeres yellow, the remaining brown; hypandrium with right lobe long, triangular and left lobe not developed; phallus lacking long, stout bristles ( Fig. 60 ) .................................... N. rossi sp. n.

13 Fore and mid femora yellow, hind femora yellow with apex brown; hind tibia strongly alciform; right epandrial lamella almost three times length of left lamella ( Figs. 36–39 ) ......................... N. elegans sp. n.

- Fore and mid femora pale-brown, hind femur brown to dark brown; hind tibia not strongly falciform; right epandrial lamella subequal in length to left lamella .................................................................................. 13

14 Hypandrium short with two long lobes, left hypandrial lobe wide, pointed distally, longer than one-half length of base of hypandrium, right hypandrial lobe wide on basal half and slender on remaining, with a pointed inner process in the middle; phallus decreasing in thickness apically, arched back at distal third, with ventral longitudinal series of 7–8 tubercles in the middle ( Fig. 18 ) ................... N. colombiensis sp. n.

- Hypandrium elongate, left hypandrial lobe not developed, right lobe broad, setose, bifid apically, approximately half length of base of hypandrium; phallus robust, constricted near apex, tubercles absent ( Fig.70 ) ............................................................................................................................................... N. tenuis sp. n.

Figures

FIGURES 74–81. Wings of Neohybos: 74, N. bicolor sp. n.; 75, N. brunnescens sp. n.; 76, N. colombiensis sp. n.; 77, N. cooperi sp. n.; 78, N. cupreus sp. n.; 79, N. elegans sp. n.; 80, N. fuscipes sp. n.; 81, N. tenuis sp. n.

FIGURES 23–30. Terminalia of Neohybos cooperi, sp. n. 23–27, male: 23, epandrium and cerci, dorsal view; 24, epandrium, ventral view (apex of hypandrium outlined); 25, 26, left and right epandrial lamellae, lateral view; 27, hypandrium, ventral view. 28–30, female: dorsal, ventral and lateral views. Figs 23–27; 28–30 in the same scale.

FIGURES 52–55. Male terminalia of Neohybos longiventris, sp. n.: 52, epandrium and hypandrium, ventral view; 53, epandrium and cerci, dorsal view; 54,55, left and right epandrial lamellae, lateral view.

FIGURES 9–13. Male terminalia of Neohybos brunnescens, sp. n.: 9, epandrium, ventral view (apex of hypandrium outlined); 10, epandrium and cerci, dorsal view; 11, 12, left and right epandrial lamellae, lateral view; 13, hypandrium, ventral view.

FIGURES 1–8. Terminalia of Neohybos bicolor, sp. n. 1–5, male: 1, epandrium and cerci, dorsal view; 2, epandrium, ventral view (apex of hypandrium outlined); 3, 4, left and right epandrial lamellae, lateral view; 5, hypandrium, ventral view. 6–8, female: dorsal, lateral and ventral views. Figs 1–5; 6–8 in the same scale.

FIGURES 61–65. Male terminalia of Neohybos schlingeri, sp. n.: 61, epandrium and cerci, dorsal view; 62, epandrium, ventral view (apex of hypandrium outlined); 63,64, left and right epandrial lamellae, lateral view; 65, hypandrium, ventral view.

FIGURES 31–35. Male terminalia of Neohybos cupreus, sp. n.: 31, epandrium and cerci, dorsal view; 32, epandrium, ventral view (apex of hypandrium outlined); 33,34, left and right epandrial lamellae, lateral view; 35, hypandrium, ventral view.

FIGURES 44–51. Terminalia of Neohybos fuscipes, sp. n. 44–48, male: 44, epandrium and cerci, dorsal view; 45, epandrium, ventral view (apex of hypandrium outlined); 56,47, left and right epandrial lamellae, lateral view; 48, hypandrium, ventral view. 49–51, female: dorsal, lateral and ventral views. Figs 44–48; 49–51 in the same scale.

FIGURES 56–60. Male terminalia of Neohybos rossi, sp. n.: 56, epandrium and cerci, dorsal view; 57, epandrium, ventral view (apex of hypandrium outlined); 58,59, left and right epandrial lamellae, lateral view; 60, hypandrium, ventral view.

FIGURES 36–43. Terminalia of Neohybos elegans, sp. n. 36–40, male: 36, epandrium and cerci, dorsal view; 37, epandrium, ventral view (apex of hypandrium outlined); 38,39, left and right epandrial lamellae, lateral view; 40, hypandrium, ventral view. 41–43, female: dorsal, lateral and ventral views. Figs 36–40; 41–43 in the same scale.

FIGURES 14–22. Terminalia of Neohybos colombiensis, sp. n. 14–18, male: 14, epandrium and cerci, dorsal view; 15, epandrium, ventral view (apex of hypandrium outlined); 16, 17, left and right epandrial lamellae, lateral view; 18, hypandrium, ventral view. 19–22, female: dorsal, right lateral, left lateral and ventral views. Figs 14–18; 19–22 in the same scale.

FIGURES 66–73. Terminalia of Neohybos tenuis, sp. n. 66–70, male: 66, epandrium, ventral view (apex of hypandrium outlined); 67, epandrium and cerci, dorsal view; 68,69, left and right epandrial lamellae, lateral view; 70, hypandrium, ventral view. 71–73, female: dorsal, lateral and ventral views. Figs 66–70; 71–73 in the same scale.