Minilimosina

Su, Lixin, Liu, Guangchun & Xu, Jie, 2015, A review of Minilimosina Roháček (Diptera: Sphaeroceridae) from China, Zootaxa 4007 (1), pp. 1-28 : 2-3

Key to species of Minilimosina from China

1 2 pairs of dorsocentral setae. Body often shining black (subgenus Svarciella Roháček )............................. 6

- 1 pair of dorsocentral setae, sometimes with a small anterior pair. Body never shining black.......................... 2

2 Cell dm very short, anterior outer corner obtuse-angled and posterior outer corner acute-angled. Cs2 no more than 0.7 times as long as Cs3. Gonostylus without posteroventral spine. Hypandrium short (subgenus Allolimosina Roháček ).............. 3

- Cell dm longer, anterior outer angle acute-angled to rectangular, or rarely slightly obtuse-angled; posterior outer corner never acute-angled. Cs2 usually over 0.7 times (rarely less than 0.7 times) as long as Cs3. Gonostylus with a posteroventral spine. Hypandrium long (subgenus Minilimosina Roháček )......................................................... 4

3 Four interfrontals. The length of dm-cu shorter than distance between r-m and dm-cu; R2+3 apically slightly curved to C. Gonostylus with a long and thin seta at the middle ( Fig. 5 ); male cerci concave and setulose on ventral margin ( Fig. 3 ) (Hebei)........................................................................................... M. cerciseta Su

- Three interfrontals. The length of dm-cu longer than distance between r-m and dm-cu; R2+3 straight, apically not curved to C. Gonostylus with a relatively short and thick seta at the middle (shorter and thicker than that of M. cerciseta , Fig. 8 ); male cerci not concave and bare on ventral margin ( Roháček, 1983: Fig. 304) (Hubei).................... M. alloneura (Richards)

4 Apical scutellar seta 0.5–1.4 times as long as scutellum length. Sternite 5 of male with a blunt, hairy posteromedial process. 5

- Apical scutellar seta 1.9 times as long as scutellum length. Sternite 5 of male with posteromedial process with 3 posteromedial combs of short flat setae ( Fig. 32 ) (Liaoning)................................................ M. quadrispinosa Su

5 Cs2 0.8 times as long as Cs3. Sternite 5 of male only with setulae in front of posteromedial process ( Fig. 18 ). Sternite 8 of female narrow and anteriorly trilobed ( Roháček, 1983: Fig. 257) (Jilin, Ningxia, Shaanxi, Zhejiang). M. fungicola (Haliday)

- Cs2 half as long as Cs3. Sternite 5 of male with two robust spine-like setae in front of posteromedial process ( Fig. 23 ). Sternite 8 of female wide and anteriorly with large medial process ( Fig. 25 ) (Yunnan, Shaanxi).................... M. luteola Su

6 Antennae yellow to brownish orange, contrasting with dark head, sometimes also face and lower frons with lunule orange to reddish brown....................................................................................... 7

- Antennae dull, not contrasting in colour with head and face always dark (but rarely with silver microtomentum)........ 13

7 Legs yellow except for hind and mid femora yellowish brown. Sternite 5 of male with large posteromedial comb, 2 horn-like robust spines and trilobed posterior structure ( Figs. 40, 41 ) (Guangxi).......................... M. cornigera Marshall

- Legs at least partly black............................................................................... 8

8 First tarsomere of fore leg blackish brown, 4 apical tarsomeres white, distinctly paler than yellow tarsi of mid and hind legs ( Fig. 72 ). Postgonite extraordinarily broad ( Fig. 76 ) (Zhejiang)........................... M. furculisterna (Deeming)

- All tarsomeres of fore leg yellow or brown, not paler than tarsi of mid and hind legs, or with 4 basal tarsomeres of fore leg dark brown to brownish black, sometimes tarsi of mid and hind legs reddish orange. Postgonite slender.................... 9

9 Abdomen with tergites 3–5 dark pigmented and heavily sclerotized as is syntergite 1+2. Sternite 6 of male with a pair of haltere-like processes ( Fig. 82 ) (Jiangxi)........................................................ M. obtusispina Su

- Abdomen with tergites 3–5 slightly paler or much paler (if much paler, often desclerotized), reduced in contrast to large and dark pigmented syntergite 1+2. Sternite 6 of male simple..................................................... 10

10 Mid and hind tibiae black with yellowish distal and proximal ends............................................. 11

- Mid and hind tibiae yellow to orange..................................................................... 12

11 Sternite 5 of male with separated posteromedial lobes apically more pointed, posteriorly projecting ( Fig. 59 ). Gonostyli symmetrical ( Fig. 56 ). Tergite 10 of female with 2 setae on posterior half ( Roháček & Marshall, 1988: Fig. 59 ); sternite 8 trapezoidal ( Roháček & Marshall, 1988: Fig. 61 ); spermathecae smooth ( Roháček & Marshall, 1988: Fig. 60 ) (Shaanxi, Yunnan, Zhejiang).................................................................... M. fanta Roháček & Marshall

- Sternite 5 of male with separated posteromedial lobes apically blunt, laterally projecting ( Fig. 87 ). Gonostyli asymmetrical ( Fig. 85 ). Tergite 10 of female with 2 setae on anterior half ( Fig. 89 ); sternite 8 butterfly-shaped ( Fig. 90 ); spermathecae with small tubercles ( Fig. 91 ) (Zhejiang)................................................... M. parafanta Su sp. nov.

12 Two orbital setae. Scutum normal. Fore tarsus entirely brown, mid and hind femora black. Cs2 0.9 times as long as Cs3. Sternite 5 of male with posterior bifurcate lobe carrying 2 separate comb-like rows of blunt spines ( Fig. 67 ). Distiphallus without whiplike sclerite. Tergite 8 of female bipartite, projecting in 2 dark, narrow posterolateral lobes ( Figs. 69, 70 ); sternite 8 ( Fig. 70 ) with a group of posterior setae and anteriorly slightly straight; spermathecae peanut-shaped ( Fig. 71 ) (Guangdong, Guangxi, Jiangxi, Zhejiang).................................................................. M. furculipexa Marshall

- One orbital seta. Scutum dorsally convex. Fore tarsus with 4 basal tarsomeres dark brown to black ( Fig. 92 ), mid and hind femora yellow. Cs2 0.4 times as long as Cs3. Sternite 5 of male with only single posterior lobe bearing row of short setae ( Fig. 97 ). Distiphallus with double whip-like sclerite ( Fig. 96 ). Tergite 8 of female tripartite ( Fig. 98 ); sternite 8 with 2 long and 6 short setae on posterior half and anteriorly distinctly convex ( Fig. 99 ). Spermathecae ball-shaped ( Fig. 100 ).................................................................................................... M. tapiehella Su sp. nov.

13 Tergites 3–5 pale pigmented, sometimes desclerotized, more or less contrasting with darker syntergite 1+2............. 14

- Tergites 3–5 heavily sclerotized and dark pigmented, shining like syntergite 1+2. Sternite 5 of male with deflexed apically bifurcate posteromedial process and row of small spines in front of it ( Roháček, 1982: Fig. 200, sub M. splendens ; Figs. 101, 102 ) (Jiangxi)..................................................................... M. v-atrum (Villeveuve)

14 Cs2 black. Deflexed posteromedial process of male sternite 5 broadly Y-shaped, only with small setulae ( Fig. 106 ) (Hebei)............................................................................... M. vitripennis (Zetterstedt)

- Cs2 pale brown to dark brown, coloured like the rest of C. Deflexed posteromedial process of male sternite 5 with comb-like row.............................................................................................. 15

15 Tergites 3–5 of male each with a pair of very long setae directed laterally. Posteromedial lobe of male sternite 5 trilobed in posterior view, of which middle lobe pale, short and thick ( Fig. 37 ). Distiphallus with whip-like dorsal sclerite ( Fig. 36 ) (Jiangxi, Hubei)............................................................................. M. archboldi Marshall

- Tergites 3–5 of male each only with setae normally directed posteriorly. Posteromedial lobe of male sternite 5 quadripartite in posterior view, of which a pair of middle lobes black, long and thin ( Fig. 53 ). Distiphallus with dorsal sclerite short ( Figs. 49, 50 ) (Jiangxi)..................................................................... M. gracilenta Su sp. nov.

Figures

FIGURES 1 – 7. Minilimosina (Allolimosina) cerciseta Su: 1, male mid tibia, anterior; 2, male mid tibia, dorsal; 3, male genitalia, posterior; 4, male genitalia, lateral; 5, gonostylus, lateral; 6, aedeagus and associated structures, lateral; 7, male sternite 5, ventral. (abbreviations: dp, distiphallus; gs, gonostylus; pha, phallapodeme; pg, postgonite; pp, phallopore; S, sternite)

FIGURES 8 – 10. Minilimosina (Allolimosina) alloneura (Richards): 8, gonostylus, lateral; 9, aedeagus and associated structures, lateral; 10, male sternite 5, ventral.

FIGURES 27 – 32. Minilimosina (Milimosina) quadrispinosa Su: 27, male genitalia, posterior; 28, male genitalia, lateral; 29, gonostylus, lateral; 30, gonostylus, ventral; 31, aedeagus and associated structures, lateral; 32, male sternite 5, ventral.

FIGURES 11 – 18. Minilimosina (Minilimosina) fungicola (Haliday): 11, male mid femur and tibia, anterior; 12, male mid tibia, dorsal; 13, male genitalia, posterior; 14, male genitalia, lateral; 15, gonostylus, lateral; 16, gonostylus, ventral; 17, aedeagus and associated structures, lateral; 18, male sternite 5, ventral.

FIGURES 19 – 23. Minilimosina (Minilimosina) luteola Su: 19, male genitalia, posterior; 20, male genitalia, lateral; 21, gonostylus, ventral; 22, aedeagus and associated structures, lateral; 23, male sternite 5, ventral.

FIGURES 24 – 26. Minilimosina (Minilimosina) luteola Su: 24, female abdomen, dorsal; 25, female postabdomen, ventral; 26, spermathecae. (abbreviations: as, additional sclerite; S, sternite; T, tergite)

FIGURES 39 – 41. Minilimosina (Svarciella) cornigera Roháček & Marshall: 39, gonostylus, lateral; 40, male sternite 5, ventral; 41, male sternite 5, posterior.

FIGURES 72 – 77. Minilimosina (Svarciella) furculisterna (Deeming): 72, male fore leg, anterior; 73, male hind leg, anterior; 74, male genitalia, posterior; 75, gonostylus, lateral; 76, aedeagus and associated structures, lateral; 77, male sternite 5, ventral.

FIGURES 78 – 82. Minilimosina (Svarciella) obtusispina Su: 78, male genitalia, posterior; 79, male genitalia, lateral; 80, gonostylus, lateral; 81, aedeagus and associated structures, lateral; 82, male sternite 5, ventral.

FIGURES 54 – 59. Minilimosina (Svarciella) fanta Roháček & Marshall: 54, male genitalia, posterior; 55, male genitalia, lateral; 56, gonostylus, ventral; 57, gonostylus, lateral; 58, aedeagus and associated structures, lateral; 59, male sternite 5, ventral.

FIGURES 60 – 68. Minilimosina (Svarciella) furculipexa Roháček & Marshall: 60, male genitalia, posterior; 61 – 63 gonostylus, lateral; 64 – 65, aedeagus and associated structures, lateral; 66, male preabdomen, dorsal; 67, male sternite 5, ventral; 68, male synsternite 1 + 2, ventral.

FIGURES 83 – 88. Minilimosina (Svarciella) parafanta Su, sp. n.: 83, male genitalia, lateral; 84, right gonostylus, lateral; 85, gonostylus, ventral; 86, aedeagus and associated structures, lateral; 87, male sternite 5, ventral; 88, male preabdomen, dorsal.

FIGURES 89 – 91. Minilimosina (Svarciella) parafanta Su, sp. n.: 89, female abdomen, dorsal; 90, female postabdomen, ventral; 91, spermathecae. (abbreviations: as, additional sclerite; S, sternite; T, tergite).

FIGURES 69 – 71. Minilimosina (Svarciella) furculipexa Roháček & Marshall: 69, female abdomen, dorsal; 70, female postabdomen, ventral; 71, spermathecae.

FIGURES 92 – 97. Minilimosina (Svarciella) tapiehella Su, sp. n.: 92, male fore leg, anterior; 93, male genitalia, posterior; 94, male genitalia, lateral; 95, gonostylus, anterior; 96, aedeagus and associated structures, lateral; 97, male sternite 5, ventral.

FIGURES 98 – 100. Minilimosina (Svarciella) tapiehella Su, sp. n.: 98, female abdomen, dorsal; 99, female postabdomen, ventral; 100, spermathecae. (abbreviations: S, sternite; T, tergite)

FIGURES 101 – 102. Minilimosina (Svarciella) v-atrum (Villeneuve): 101, male sternite 5, ventral; 102, male sternite 5, posterior.

FIGURES 103 – 106. Minilimosina (Svarciella) vitripennis (Zetterstedt): 103, male genitalia, posterior; 104, male genitalia, lateral; 105, aedeagus and associated structures, lateral; 106, male sternite 5, ventral.

FIGURES 33 – 38. Minilimosina (Svarciella) archboldi Marshall: 33, male genitalia, posterior; 34, male genitalia, lateral; 35, gonostylus, anterior; 36, aedeagus and associated structures, lateral; 37, male preabdomen, ventral; 38, male sternite 5, posterior.

FIGURES 45 – 53. Minilimosina (Svarciella) gracilenta Su, sp. n.: 45, male genitalia, posterior; 46, male genitalia, lateral; 47, gonostylus, internal; 48 – 49, aedeagus and associated structures, lateral; 50, aedeagus, dorsal; 51, male preabdomen, dorsal; 52, male sternite 5, ventral; 53, male sternite 5 and synsternite 6 + 7, posterior.