Petralycus brevicornis Theron, 1977,

Uusitalo, Matti, Ueckermann, Edward A. & Theron, Pieter D., 2020, A review of the family Alycidae (Acari, Acariformes) from South Africa, Zootaxa 4858 (3), pp. 301-340: 336

publication ID

https://doi.org/10.11646/zootaxa.4858.3.1

publication LSID

lsid:zoobank.org:pub:7BA52F1C-4084-4915-A7D9-8DA99379086B

DOI

http://doi.org/10.5281/zenodo.4412409

persistent identifier

http://treatment.plazi.org/id/AC6C87BA-C447-EB4F-FF1C-61F9128DD137

treatment provided by

Plazi

scientific name

Petralycus brevicornis Theron, 1977
status

 

Petralycus brevicornis Theron, 1977 

( Figs. 134E, FView FIGURE 134, 135A, CView FIGURE 135)

Petralycus brevicornis Theron, 1977: 42  , figs. 16–29.

Description. Dorsum ( Figs. 134E, FView FIGURE 134, 135BView FIGURE 135). Length ca. 480 μm; irregularily arranged dorsal setae slightly swollen; tiny additional setae on ventral side; naso short, broad at base, abruptly tapering to a sharp point, setae vi twice as long as setae sce, setae in and exp absent, filiform sensilla sci sparsely ciliated and clavate sensilla ve barbed.

Venter. Genital valves each with 16-17 genital setae; 4 anal setae per valve.

Gnathosoma  ( Fig. 135CView FIGURE 135). Pair of smooth cheliceral setae dorsally; rutella pointed; no additional setae on subcapitulum (three pairs present); palpal tarsi with enlarged solenidion reaching over two mucronate, terminal eupathids.

Legs. Solenidial formula for tarsi, tibiae, genua and femora on legs I, II, III and IV, respectively: 1-1-0-0, 2-2-2- 2, 5-1-2-2, 2-0-0-0, all solenidia baculiform, also smaller solenidia are subequal in width, i.e. they are not tapering as the ceratiform solenidia do; tarsi I with several barbed eupathids and a spine-like famulus distally.

Type material examined. Holotype male from pasture soil, Badplaas , MPUMALANGA PROVINCE, April 1972, K.N. de Kock. Deposited at the Mite Collection of ARC-Plant Health and Protection, Pretoria, South Africa. 

Differential diagnosis. This neotrichous species can be differentiated from all the other petralycines by having only two pairs of prodorsal setae (vi and sce) present (the pairs of setae in and exp are absent), an abruptly tapering, short naso and setae vi two times longer than setae sce.

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Acariformes

Family

Alycidae

Genus

Petralycus

Loc

Petralycus brevicornis Theron, 1977

Uusitalo, Matti, Ueckermann, Edward A. & Theron, Pieter D. 2020
2020
Loc

Petralycus brevicornis

Theron, P. D. 1977: 42
1977