Symphytognathidae, Hickman, 1931

Miller, Jeremy, Griswold, Charles & Yin, Chang, 2009, The symphytognathoid spiders of the Gaoligongshan, Yunnan, China (Araneae: Araneoidea): Systematics and diversity of micro-orbweavers, ZooKeys 11 (11), pp. 9-195 : 63-64

publication ID	https://doi.org/ 10.3897/zookeys.11.160
publication LSID	lsid:zoobank.org:pub:C631A347-306E-4773-84A4-E4712329186B
DOI	https://doi.org/10.5281/zenodo.3792234
persistent identifier	https://treatment.plazi.org/id/03ACB915-FFA9-7423-FF4E-45FAFBA5FC82
treatment provided by	Plazi
scientific name	Symphytognathidae
status

Treatment

Key to Gaoligongshan Symphytognathidae View in CoL View at ENA

1 Carapace nearly smooth ( Figs 69A View Figure 69 , 70C View Figure 70 ); male abdomen lacking scutum ( Fig. 65A View Figure 65 ).......................................................... Patu Marples, 1951 View in CoL ........ 2

– Carapace sculptured with scales ( Fig. 77 View Figure 77 E-F, 78F) or denticles (Fig. 91A-D); abdominal scutum on male wraps around posterior ( Fig. 74A View Figure 74 )...................... ....................................................... Crassignatha Wunderlich, 1995 View in CoL ........ 6

2(1) Females....................................................................................................... 3

– Males.......................................................................................................... 5

3(2) Female epigynum with scape ( Fig. 67 View Figure 67 A-C)............... Patu jidanweishi View in CoL sp. n.

– Female epigynum without scape ................................................................. 4

4(3) Looped path of the spermatheca/duct complex ( Fig. 67F View Figure 67 ), epigynum with two juxtaposed dark circles showing through the integument ( Fig. 67E View Figure 67 )....... ............................................................................................ Patu qiqi View in CoL sp. n.

– Path of the spermatheca/duct complex elongate along longitudinal axis ( Fig. 67H View Figure 67 ); epigynum with two less distinct comma-shaped structures showing through the integument ( Fig. 67G View Figure 67 ) .............................. Patu xiaoxiao View in CoL sp. n.

5(2) Embolus long, flexible ( Fig. 66 View Figure 66 ) ............................... Patu jidanweishi View in CoL sp. n.

– Embolus short, not flexible ( Fig. 73B View Figure 73 ) ................................. Patu qiqi View in CoL sp. n.

6(1) Abdomen rounded posteriorly .................................................................... 7

– Two lobes on the posterodorsal part of the abdomen ( Fig. 86 View Figure 86 D-F) ............... ............................................................................ Crassignatha ertou View in CoL sp. n.

7(6) Carapace sculptured with scales ( Fig. 77 View Figure 77 E-F, 78F). Metatarsus III lacking a trichobothrium ........................................................................................... 8

– Carapace sculptured with denticles (Fig. 91A-D). Metatarsus III with a trichobothrium..................................................... Crassignatha longtou View in CoL sp. n.

8(7) Males.......................................................................................................... 9

– Females..................................................................................................... 12

9(8) Embolus long, with kink or partial turn. Prosoma declining or weakly domed behind posterior eyes ................................................................................ 10

– Embolus short ( Fig. 75A View Figure 75 ). Prosoma strongly domed behind posterior eyes ( Figs 74A View Figure 74 , 77E View Figure 77 )................................................ Crassignatha pianma View in CoL sp. n.

10(9) Embolus long, flexible, describing a half circle turn ( Fig. 87A View Figure 87 ) ..................... ............................................................................ Crassignatha yamu View in CoL sp. n.

– Embolus shorter, rigid, helical or kinked, not describing a half circle turn..... 11

11(10) Embolus with a strong kink about 1/3 its length from the origin (Figs 81A, 82C) ................................................................... Crassignatha yinzhi View in CoL sp. n.

– Embolus a single turn rigid spiral ribbon, not simply tapered but with a narrow waste near the midpoint ( Fig. 84A View Figure 84 )........... Crassignatha quanqu View in CoL sp. n.

12(8) Scape oriented ventrally to posteroventrally ( Figs 76F View Figure 76 , 79D View Figure 79 ) with the distal lobe of the scape more narrow than the basal lobe ( Figs 76G View Figure 76 , 79C View Figure 79 ) and/or with the ducts running anteriorly between the spermathecae before turning posteriorly ( Figs 76I View Figure 76 , 89B, D View Figure 89 )................................................................... 13

– Scape procurved ( Figs 76A View Figure 76 , 79B View Figure 79 ) composed of two lobes of equal width ( Figs 76B View Figure 76 , 79A View Figure 79 ); ducts do not run anteriorly between the spermathecae................ ........................................................................ Crassignatha pianma View in CoL sp. n.

13(12) Distal lobe of the scape, more narrow than and projecting well beyond the basal lobe ( Figs 76D View Figure 76 , 79 View Figure 79 C-D). Copulatory ducts mostly restricted to area posterior to spermathecae ......................................................................... 14

– Scape lobes not well differentiated or same width ( Fig. 79A View Figure 79 ). Copulatory ducts double back to run between spermathecae before turning back toward scape......................................................................................................... 15

14(13) Scape projecting posteroventrally ( Figs 79D View Figure 79 , 80B View Figure 80 ). Abdomen dark in preserved specimens, subtriangular, maximum posterior extension of abdomen near dorsum........................................................ Crassignatha yinzh i sp. n.

– Scape projecting ventrally ( Figs 76F View Figure 76 , 79F View Figure 79 ). Abdomen pale in preserved specimens, subspherical, maximum posterior extension of abdomen near center .. ........................................................................ Crassignatha quanqu View in CoL sp. n.

15(13) Ducts run straight and come together at a nearly 90° angle near the midpoint of the spermathecae ( Fig. 76I View Figure 76 ).............................. Crassignatha yamu View in CoL sp. n.

– Ducts curve and come together near the posterior margin of the spermathecae ( Fig. 89D View Figure 89 ) ..................................................... Crassignatha gudu View in CoL sp. n.