Dactyloscirus Berlese 1916
Creators: name: Corpuz-Raros, Leonila A.
name: Naredo, Jeremy C. B.
name: Lit, Ireneo L.
name: Caasi-Lit, Merdelyn T.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Cunaxidae
Dactyloscirus

description: Key to species of Dactyloscirus
(Females)
1. Pedipalp with apophysis on joint of genu and tibiotarsus or arising distally on inner surface of genu................... 2
– Pedipalp without apophysis on joint of genu and tibiotarsus nor on genu......................................... 25
2. Hysterosoma with four pairs of median dorsal platelets.......... D. multiscutus Rocha, Rodrigues and Ferla, 2015 (Brazil)
– Hysterosoma either with a single median dorsal shield or entirely soft, without platelets or shields..................... 3
3. Hysterosoma with single median dorsal shield.............................................................. 4
– Hysterosoma without median dorsal shield................................................................ 10
4. Hysterosoma with a pair of dorsolateral shields............................................................. 5
– Hysterosoma without dorsolateral shields.................................................................. 7
5. Median dorsal hysterosomal shield with two pairs of setae (c, d); basifemora I – IV with 5-5-3-1 setae.................. 1 1 .......................................................... D. philippinensis Corpuz-Raros, 1995 (Philippines)
– Median dorsal hysterosomal shield with three pairs of setae (c 1, d 1 and e 1); basifemora I–IV with 5-5-3-2 setae........... 6
6. Apophysis on joint of pedipalpal genu and tibiotarsus long and pointed, that on telofemur short and spoon-shaped................................................................................. D. mesonotus Shiba, 1986 (Japan)
– Apophysis on joint of pedipalpal genu and tibiotarsus long and blunt-tipped, that on telofemur long and blunt apically.......................................................... D. pseudophilippinensis Skvarla and Dowling, 2012 (USA)
7. Apophysis on joint of pedipalpal genu and tibiotarsus attenuate and pointed...................................... 8
– Apophysis on joint of pedipalpal genu and tibiotarsus bulbous................................................. 9
8. Median hysterosomal shield with three pairs of setae (c 1, d 1 and e 1); seta c 2 arising on soft cuticle outside median shield............................................................................ D. johnstoni Smiley, 1992 (Mexico)
– Median hysterosomal shield with four pairs of setae (c 1, c 2, d 1 and e 1); seta c 2 arising on median shield.............................................................................. D. illutus Inayatullah and Shahid, 1996 (Pakistan)
9. Median hysterosomal shield with two pairs of setae (c 1 and d 1); pedipalpal telofemur with a bulbous apophysis......................................................................... D. mansoni Smiley, 1992 (Mexico; Philippines)
– Median hysterosomal shield with three pairs of setae (c 1, d 1 and e 1); pedipalpal telofemur without apophysis.................................................................................. D. pataliputraensis Gupta, 1981 (India)
10. Hysterosoma with a pair of lateral shields................................................................ 11
– Hysterosoma without lateral shields..................................................................... 22
11. Coxa II with two setae................................................ D. poppi Smiley, 1992 (unknown locality) *
– Coxa II with three setae............................................................................... 12
12. Pedipalpal telofemur with two apophyses, one narrowly bulbous and other disc-shaped.............................................................................................. D. condylus Den Heyer, 1979 (South Africa)
– Pedipalpal telofemur with only one broadly bulbous apophysis................................................ 13
13. Coxa IV with one or two setae......................................................................... 14
– Coxa IV with three setae.............................................................................. 16
14. Coxa IV with one seta; tibia I with two attenuate solenidia............... D. imbecillus Bashir and Afzal, 2006 (Pakistan)
– Coxa IV with two setae; tibia I with one attenuate solenidion................................................. 15
15. Dorsomedian hysterosomal seta f 1 shorter than h 1; palp genu with two sts... D. manzoori Bashir and Afzal, 2006 (Pakistan) – Dorsomedian hysterosomal seta f 1 longer than h 1; palp genu with three sts.. D. kahrorensis Bashir and Afzal, 2006 (Pakistan)
16. Pedipalpal tibiotarsus thick, almost straight and gradually tapered distally; apophysis on joint of pedipalpal genu and tibiotarsus small and narrowly bulbous............................................................................ 17
– Pedipalpal tibiotarsus thin, curved, and abruptly tapered from near base; apophysis on joint of pedipalpal genu and tibiotarsus large and apically pointed or bulbous.................................................................... 18
17. Basifemur IV with two sts; tibiae I-IV with 5-5-5-4 sts; setae g 4 longest of the genital setae....................................................................... D. ladangjagung Corpuz-Raros and Lit sp. nov. (Indonesia: Sumatra)
– Basifemur IV with one sts; tibiae I-IV with 4-5-4-2 sts; setae g 3 longest of the genital setae.................................................................................................. D hoffmannae Swift, 1996 (Hawaii)
18. Lateral hysterosomal shields small, less than twice as long as either setae c or c ................................... 1 2 ........................................................... D. inermis (Tragardh, 1905) (Egypt; cosmopolitan)
– Lateral hysterosomal shields long, more than twice as long as either setae c 1 or c 2 ................................. 19
19. Hysterosomal seta h 1 1.25 times longer than f 1.................................... D. humuli Liang, 1986 (NE China)
– Hysterosomal setae f 1 and h 1 equal in length............................................................... 20
20. Genital seta g 3 longest, 1.5 – 1.7 times the length of g 2 and g 4, and more than twice g1 ...... D. smileyi Swift, 1996 (Hawaii)
– Genital seta g 4 longest of the genital setae................................................................ 21
21. Chelicera slender and gradually tapered from base to tip of claw; length of lateral hysterosomal shield equal to setal distance c 1 –c 2; hysterosomal setae f 1 and h 1 1.25 times as long as anterior setae c 1 –e 1 ….................................................................................................. D. dolichosetosus Den Heyer, 1979 (South Africa)
– Chelicera stout, basal half inflated to four times its distal width; length of lateral hysterosomal shields only 2/3 of setal distance c 1 –c 2; hysterosomal setae f 1 and h 1 2.25 times as long as setae c 1 –e 1 ................................................................................................ D. sumatranus Corpuz-Raros and Naredo sp. nov. (Indonesia)
22. Apophysis on joint of pedipalpal genu and tibiotarsus long and gradually tapered to a fine point................................................................... D. machairodus (Oudemans, 1922) (Indonesia: Sumatra, Philippines)
– Apophysis on joint of pedipalpal genu and tibiotarsus short and bulbous........................................ 23
23. Pedipalpal genu with two apophyses, one bulbous and the other disc-like. D. discocondylus Corpuz-Raros, 2008 (Philippines)
– Pedipalpal genu with one bulbous apophysis.............................................................. 24
24. Basal pair of adoral setae very long, more than four times the length of distal pair; apophysis of pedipalpal telofemur about as long as width of this segment; genital seta g 4 twice as long as setae g 1 –g 3 .... D. rosarioae Corpuz-Raros, 1995 (Philippines)
– Basal pair of adoral setae not elongated, subequal to distal pair; apophysis of pedipalpal telofemur short, less than width of this segment; genital setae g 4 slightly longer than setae g 1 –g 3 .................. D. agricolus Corpuz-Raros, 1995 (Philippines)
25. Median dorsal hysterosomal shield present................................................................ 26
– Median dorsal hysterosomal shield absent................................................................ 27
26. Dorsal hysterosomal shield bear three pairs of setae (c, d and e)............................................... 1 1 1 ............................................... D. eupaloides Berlese, 1916 (Argentina, North America, Europe) 1 2 1 1
– Dorsal hysterosomal shield bear four pairs of setae (c, c, d, and e)..... D. minys Inayatullah and Shahid, 1996 (Pakistan)
27. Pedipalpal claw trifid; setal formula of coxae II–IV 3-3-3.................. D. trifidus Corpuz-Raros, 2008 (Philippines)
– Pedipalpal claw entire, unbranched; setal formula of coxae II–IV not as above................................... 28
28. Coxa I with two setae..................................................... D. bengalensis Gupta, 1992 (India)
– Coxa I with three setae............................................................................... 29
29. Coxal II–IV setal formula 1-3-2.................................... D. orsi Inayatullah and Shahid, 1996 (Pakistan)
– Coxal II–IV setal formula 2-3-1.............................. D. saopauloensis Den Heyer and Castro, 2012 (Brazil)
description: Published as part of Corpuz-Raros, Leonila A., Naredo, Jeremy C. B., Lit, Ireneo L. & Caasi-Lit, Merdelyn T., 2022, Two new species of the genus Dactyloscirus (Acari: Prostigmata: Bdelloidea Cunaxidae) from Sumatra, Indonesia, with a key to known species, pp. 89-103 in Zootaxa 5214 (1) on pages 100-102, DOI: 10.11646/zootaxa.5214.1.3, http://zenodo.org/record/7381902