Microtrombicula paralios Webb and Loomis, 1970

(Fig. 25)

Microtrombicula paralios Webb and Loomis, 1970: 135, fig. 2; Hoffmann 1990: 93, fig. 56; Daniel & Stekolnikov 2003b: 31.

Diagnosis. SIF = 5B1N-N-2-3111.1000; fsp = 7.7.7; fCx = 1.1.1; fSt = 2.2; fPp = B/B/BBB; fSc: PL> AM> AL; Ip = 607–637; fD = 2H-6-6-6-4-4(6)-2; DS = 30–32; V = 26–30; NDV = 57–60. Palpal claw two-pronged, outer prong smaller; scutum nearly pentagonal, sparsely punctated, with distinct anterolateral shoulders, with angulate posterior margin; AM anterior to level of AL; sensilla flagelliform, with 8–10 branches in distal part, far anterior to level of PL (PSB—P-PL = 8–10 µm); sternal setae with few cilia or nude, coxal seta I with 2 branches, coxal seta II looks nude, coxal seta III with 3 branches. Standard measurements of examined specimens given in Table 15.

Distribution. Mexico (Webb & Loomis 1970) and Paraguay (this study).

Hosts . Myotis vivesi Ménégaux (= Pizonyx vivesi) ( Chiroptera: Vespertilionidae) (Webb & Loomis 1970).

New host records: Dendrocolaptes platyrostris, Paroaria capitata .

Material examined. Nine larvae (ZIN 8950–8955, 8957–8959) ex D. platyrostris No PG 238, PARAGUAY: San Rafael Nat. Park, Kanguery, 23 August 2012; 1 larva (ZIN 9116) ex P. capitata No PG 439, Tres Gigantes Biological Station, 8 September 2012 .

Remarks. This species is very similar, by all available characters, to Microtrombicul a fragibarba (Brennan and Jones, 1960), but the latter was described incompletely. A careful redescription of M. fragibarba is required to establish the possible conspecificity of these species.