Agaue Lohmann, 1889

Bartsch, Ilse, 2015, The genital area of Halacaridae (Acari), life stages and development of morphological characters and implication on the classification, Zootaxa 3919 (2), pp. 201-259 : 207-208

Agaue Lohmann, 1889

(Fig. 8)

Type species. Halacarus parvus Chilton, 1883 .

Adults. In female and male GP and AP fused. Female and male GO in ventral position, often almost similarsized and removed from anal cone by almost the same distance. Female GA with three to about 20 pairs of pgs, genital sclerites with zero to two pairs of sgs. Ovipositor at rest generally extending beyond anterior margin of GO and often reaching to or beyond anterior margin of GA. Number and shape of genital spines not described. Females with three pairs of rather large internal acetabula, these either equal-sized ( Bartsch 1999c: fig. 5C) or posteriormost one larger than anterior pairs of acetabula ( Chang & Chatterjee 2006: fig. 1B, C). Male with more than 80 pgs densely arranged around GO, pgs often filiform, rarely delicately plumose. Genital sclerites with five pairs of spurlike sgs. With three pairs of large gac, posterior-most pair may be somewhat enlarged ( Bartsch 1999c: fig. 4C). Neither female nor male AE with epimeral pores.

Juveniles. With larval and two nymphal stages. Genital plate of nymphs often small, separated from anal plate. Deutonymph with two pairs of internal gac, single pair of pgs and either zero or two pairs of sgs (Fig. 8; Chang & Chatterjee 2006: fig. 4B). Protonymph with pair of internal gac; pgs and sgs lacking. Larva with epimeral pores.

Remarks. More than 40 valid species are at present known. The genus is spread world-wide ( Bartsch 2009a).