Pselaphomorphus

Vásquez-Vélez, Laura M., 2016, Revision of the genus Pselaphomorphus Motschulsky, 1855 (Staphylinidae, Pselaphinae: Jubini), Zootaxa 4107 (1), pp. 1-48 : 8-9

publication ID

https://doi.org/ 10.11646/zootaxa.4107.1.1

publication LSID

lsid:zoobank.org:pub:248E86E7-C8D5-4542-81EE-4854276C7CE0

DOI

https://doi.org/10.5281/zenodo.6088415

persistent identifier

https://treatment.plazi.org/id/03B68B3E-8B61-FFDB-94C8-A35EFA3FFBEB

treatment provided by

Plazi

scientific name

Pselaphomorphus
status

 

Key to species of Pselaphomorphus View in CoL , based on males

1 Head triangular ( Fig. 8 View FIGURE 8 A), base of the antennal tubercle not longer that the eye..................................... 2

- Head pear-shaped ( Fig. 4 View FIGURE 4 A) to elongate ( Fig. 5 View FIGURE 5 ), base of the antennal tubercle longer than the eye diameter............. 12

2 Antennal clava evident; antennomers 7 to 11 dictintively wider ( Fig. 6 View FIGURE 6 A)......................................... 3

- Antennal clava not evident ( Fig. 4 View FIGURE 4 A)...................................................................... 8

3 All antennomeres quadrate ( Fig. 8 View FIGURE 8 A); body length less than 2.0 mm.............................................. 4

- Clava antennomeres elongate ( Fig. 4 View FIGURE 4 A) antennomere 7 at least twice as long as antennomere 6........................ 5

4 Aedeagal median lobe divided medially into four arms ( Figs. 8 View FIGURE 8 B, 8C). Longer arm extending upward and curved from left to middle in dorsal view. Accessory lobes absent................................. Pselaphomorphus breviantennae View in CoL n. sp.

- Aedeagal median lobe divided apically as short as accessory lobes ( Figs. 13 View FIGURE 13 C, 13D). Accessory lobes present..................................................................................... Pselaphomorphus fluminosus View in CoL n. sp.

5 Pronotum with obtuse spines between the lateral lobes and the basal lobe ( Fig. 16 View FIGURE 16 A)................................ 6

- Pronotum without spines................................................................................ 7

6 Median lobe of aedeagus flattened, complete, accessory lobe complete...... Pselaphomorphus tucumanensis View in CoL n. sp. ( Fig. 32 View FIGURE 32 )

- Median lobe of aedeagus divided into two arms, accessory lobes divided...... Pselaphomorphus longiceps Raffray View in CoL ( Fig. 16 View FIGURE 16 )

7 Phallobase asymmetric ( Fig. 15 View FIGURE 15 B), median lobe short and slender. Two accessory lobes shorter than median lobe..................................................................................... Pselaphomorphus incorum View in CoL n. sp.

- Phallobase symmetric ( Fig. 23 View FIGURE 23 B), median lobe divided into two arms: left arm laminate, right arm cylindrical, located medi- ally; accessory lobe divided into two arms with acute apices.................... Pselaphomorphus montsineryensis View in CoL n. sp.

8 Pronotal lobes triangular ( Fig. 26 View FIGURE 26 A), basally rounded; antennomere 6 small and quadrate, 7 elongate; elytra with the basal ridge weak, discal depression and humeral teeth absent................................. Pselaphomorphus parki View in CoL n. sp.

- Pronotal lobes trapezoidal or rectangular ( Fig. 30 View FIGURE 30 A); antennomere 6 small and elongate, antennomere 7 elongate and at least three times longer than 6; elytra with strong basal ridge discal depression and humeral teeth present.................... 9

9 Discal depression extending slightly beyond the humeral tooth ( Fig. 12 View FIGURE 12 A).............. Pselaphomorphus chandleri View in CoL n. sp.

- Discal depression not extending beyond the humeral tooth.................................................... 10

10 Pronotal disc rectangular ( Fig. 24 View FIGURE 24 A); genitalia short (0.6 mm) and symmetrical ventrally membranous, median lobe complete, not divided ( Figs. 24 View FIGURE 24 B, 24C)................................................ Pselaphomorphus motschulskyi View in CoL n. sp.

- Pronotal disc oval, genitalia globose or narrow, divided or with accessory lobes present............................. 11

11 Phallobase rounded and globose, medially divided into two asymmetrical arms ( Figs. 18 View FIGURE 18 B, 18C)............................................................................................. Pselaphomorphus macrommatus View in CoL n. sp.

- Phallobase regular, narrow and symmetrical, median lobe laminate, accessory lobe cylindrical ( Figs. 30 View FIGURE 30 B and 30C)............................................................................... Pselaphomorphus simplicipenis View in CoL n. sp.

12 Head elongate: base of the antennal tubercle longer than eye diameter; aedeagus with two median lobes ( Fig. 5 View FIGURE 5 )......... 13

- Head pear-shaped: base of the antennal tubercle as long as eye diameter; aedeagus with one median lobe ( Fig. 22 View FIGURE 22 )........ 14

13 Body color and pilosity amber ( Fig. 5 View FIGURE 5 A); aedeagus with two accessory lobes, one divided ( Figs. 5 View FIGURE 5 B, 5C)........................................................................................ Pselaphomorphus agametopus View in CoL n. sp.

- Body color reddish and pilosity bright yellow ( Fig. 17 View FIGURE 17 A); aedeagus with one accessory lobe surrounding median lobes ( Figs. 17 View FIGURE 17 B, 17C).............................................................. Pselaphomorphus longissimus View in CoL n. sp.

14 Antennae with five segmented clava; antennomere 7 twice as long as antennomere 6 and distinctively wider ( Fig. 22 View FIGURE 22 A)... 15

- Antennae without evident clava; antennomere 7 not longer than 6 and of similar width ( Fig. 31 View FIGURE 31 A)..................... 17

15 Pronotal lateral lobes triangular with the basal region obtuse; pronotal disc oval ( Fig. 22 View FIGURE 22 A).............................................................................................. Pselaphomorphus microphthalmus Raffray View in CoL

- Pronotal lobes triangular with the basal region rounded ( Figs. 6 View FIGURE 6 A, 27A)......................................... 16

16 Obtuse spines present between lateral and basal lobes of pronotum ( Fig. 27 View FIGURE 27 A.)............ Pselaphomorphus raffreyi n. sp.

- Pronotum without spines between lateral and basal lobes ( Fig. 6 View FIGURE 6 A).................. Pselaphomorphus azuayensis View in CoL n. sp.

17 Phallobase irregular ( Figs. 19 View FIGURE 19 B, 31B)..................................................................... 18

- Phallobase regular ( Figs. 9 View FIGURE 9. A C, 21B), some species with the head sulcus wider than eye radius ( Fig. 9 View FIGURE 9. A B)................. 21

18 Accessory lobe of the aedeagus as long as half of the median lobe ( Figs. 19 View FIGURE 19 B, 19C, 28B, 28C)....................... 19

- Accessory lobe of aedeagus shorter than half of the median lobe ( Figs. 14 View FIGURE 14 B, 14C, 31B, 30C)......................... 20

19 Accessory lobe membranous and laminate ( Fig. 19 View FIGURE 19 )........................... Pselaphomorphus maldonadensis View in CoL n. sp.

- Accessory lobe of aedeagus, in dorsal view, long, straight and cylindrical, with the apex acute ( Fig. 28 View FIGURE 28 B)........................................................................................ Pselaphomorphus santaecrucis View in CoL n. sp.

20 Accessory lobe of aedeagus, in dorsal view, rounded basally and acute apically, curved to right ( Fig. 14 View FIGURE 14 B)........................................................................................ Pselaphomorphus iguazuensis View in CoL n. sp.

- Accessory lobe short, less than one-third the length of median lobe ( Fig. 31 View FIGURE 31 )............. Pselaphomorphus thayerae View in CoL n. sp.

21 Body coloration reddish, pilosity clear or light yellow; antennomere length gradually increasing after 6................ 22

- Body coloration dark brown, pilosity bright yellow; antennomere length evenly increasing throughout ( Fig. 21 View FIGURE 21 A).................................................................................... Pselaphomorphus melanus View in CoL n. sp.

22 Head longitudinal sulcus wider than eye radius ( Fig. 9A, 9 View FIGURE 9. A B).................................................. 23

- Head longitudinal sulcus not wider than eye radius, fusiform ( Figs. 4 View FIGURE 4 A)......................................... 24

23 Head longitudinal sulcus rounded ( Fig. 9A View FIGURE 9. A )....................................... Pselaphomorphus bruchi Raffray View in CoL

- Head longitudinal sulcus linear ( Fig. 9 View FIGURE 9. A B).................................... Pselaphomorphus carenobothrus View in CoL n. sp.

24 Mesotrochanter armed with acute spine that projects vertically, the spine longer than mesotrochanter width ( Fig. 4 View FIGURE 4 B)............................................................................. Pselaphomorphus acutispinosus View in CoL n. sp.

- Mesotrochanter triangular without projection or with weak projection not longer than mesotrochanter width............. 25

25 Accessory lobe of aedeagus present ( Figs. 11 View FIGURE 11 B, 11C, 25B, 25C)................................................ 26

- Accessory lobe of aedeagus absent ( Figs. 7 View FIGURE 7 C, 20B, 20C, 33B, 33C)............................................. 27

26 Accessory lobes short, cylindrical basally, and dorsal to two arms of median lobe ( Fig. 10 View FIGURE 10 B).................................................................................................. Pselaphomorphus cayenennsis n. sp.

- Accessory lobe longer than median lobe, flattened ( Fig. 24 View FIGURE 24 B).......................... Pselaphomorphus newtoni View in CoL n. sp.

27 Aedeagus in dorsal view parallel-sided throughout its length.................................................. 28

- Aedeagus in dorsal view becoming wider from mid point to apex............................................... 31

28 Aedeagus divided apically............................................................................. 29

- Aedeagus not divided apically; in lateral view curved dorsally beyond phallobase.................................. 30

29 Aedeagus apically divided into three short spines; in lateral view flat, not curved dorsally ( Fig. 32 View FIGURE 32 C).......................................................................................... Pselaphomorphus veracruzanus View in CoL n. sp.

- Aedeagus apically divided into two arms, median lobe inserted into circular structure at base ( Fig. 6 View FIGURE 6 C).......................................................................................... Pselaphomorphus bolivarensis View in CoL n. sp.

30 Aedeagus in dorsal view straight, slightly curved at apex ( Fig. 19 View FIGURE 19 C)................. Pselaphomorphus mayaorum View in CoL n. sp.

- Aedeagus in dorsal view curved medially to right and apically to left ( Fig. 33 View FIGURE 33 C).......... Pselaphomorphus wagneri View in CoL n. sp.

31 Aedeagus apically with two long arms projecting dorsally ( Figs. 28 View FIGURE 28 B, 28C).... Pselaphomorphus sculpturatus Motschulsky View in CoL

- Aedeagus apically rounded, lacking arms ( Figs. 9 View FIGURE 9. A B, 9C).............................. Pselaphomorphus carltoni View in CoL n. sp.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Staphylinidae

SubFamily

Pselaphinae

Tribe

Jubini

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