Trichophoromyia dilermandoi Lopes & Shimabukuro, 2025

Trichophoromyia dilermandoi Lopes & Shimabukuro , sp. nov.

Figs 3–8

https://zoobank.org/ 2D2B519D-D4E9-40C7-94ED-2568647A26BB

Diagnosis. Paramere rectangular and without a fringe of long setae on the dorsal lobe. Presence of 10–12 setae in the gonocoxite and the aedeagal ducts/sperm pump ratio of 5.7.

Type material: Holotype male (slide number 91566), BRAZIL: Pará state, Jacareacanga; 9°13’6.23”S, 56°57’34.96”W; 201; Lopes et al. leg.; collected in the right margin of the Teles Pires River , Aragão site, forest, HP light trap GoogleMaps . Paratypes males (slide numbers provided between brackets): right margin of the Teles Pires River, Aragão site, Jacareacanga , Pará state; 9°13’6.23”S, 56°57’34.96”W; vii.2016 (91601, 91620) GoogleMaps , x.2016 (91561, 91560, 91567, 91568, 91569, 91570, 91571) GoogleMaps , 15–19.i.2017 (91572, 91573, 91593, 91619, 91616, 91585). In addition, we have identified and deposited 57 slides from the same localities under numbers 91562–91565, 91574–91584, 91586–91592, 91594–91600, 91602–91615, 91617–91618 and 91621–91622. All slides have been deposited in Coleção de FlebotomÍneos (FIOCRUZ/ COLFLEB) of Instituto René Rachou, Belo Horizonte, Brazil .

Description. Male. Head. ( Fig. 3) Length 344 (323 ± 105; n = 10), width 316 (321 ± 22; n = 8). Eyes: length 185 (191± 12; n = 8), width 120 (108 ± 10; n = 6) (front view). Interocular distance 114 (113± 11; n = 7). Clypeus: length 97 (105 ± 9; n = 11), width 60 (66 ± 12; n = 11) Flagellomeres ( Fig. 4) Length of the flagellomeres: FI 216 (206 ± 11; n = 10), FII 123 (119 ± 5; n = 10), FIII 125 (120 ± 5; n = 10), FXII 63 (63 ± 3; n = 9) e FXIII 47 (51 ± 2; n = 9). Ascoids without posterior prolongation in all segments, Posterior extension of the long ascoid in F1, F2 and F3, reaching the next segment. Antennal formula AIII 2, AXIV–AXIV 2, AXV–AXVI 0. Palpi ( Fig. 5): Length of the palpi: PI 25 (23 ± 3; n = 12), PII 87 (85 ± 5; n = 11), PIII 120 (105 ± 31; n = 9), PIV 40 (48 ± 6; n = 7), PV 161 (136 ± 30; n = 6). Newstead’s sensilla concentrated in the middle portion of PIII and two sensilla are also found in the pre-apical portion of PII. Cervix. Ventro-cervial sensillae absent.

Thorax. Mesonotum and metanotum dark brown, pronotum, mesopleuron, metapleuron and coxae brown. Mesonotum 472 (497 ± 19; n = 12) long. Pleura with four proepimeral setae (3–7; n = 11) and 12 upper anepisternal setae (8–12; n = 11) and metaepisternal and metapimeral setae absent. Wing ( Fig. 6): Length 1,969 (1,983 ± 60; n = 12), width 502 (528 ± 29; n = 12). Alpha 459 (540 ± 47; n = 12), beta 275 (278 ± 23, n = 12), gamma 227 (225 ± 20; n = 12), delta 275 (311 ± 38, n = 11), pi 124 (127 ± 13, n = 11), R5 = 1,134 (1,199 ± 50, n = 12). Legs. Some measurements were based on paratypes 4 and 10 because they were lost (or broken) in the holotype: Femur length: anterior 810 (809 ± 51; n = 6), middle 690 (727 ± 33; n = 3), posterior 853 ( paratype 10) (842 ± 15; n = 2). Length of tibia: anterior broken in the holotype (1,060 ± 314; n = 5), middle ( paratype 10) 1,063 (1.168 ± 148; n = 2), posterior 1,522 ( paratype 10) (1,512 ± 14; n = 2). Length T1: anterior 662 (661 ± 149; n = 4), middle ( paratype 10) 780 (774 ± 9; n = 2) posterior ( paratype 4) 818 (n = 1). Extension T2 +: anterior 773 (744 ± 95; n = 3).

Abdomen: Length 1,678 (1,516 ± 108; n = 12).

Terminalia ( Fig. 7): gonostylus 212 (213 ± 8; n = 12) long, with four spines; the spines having the following arrangement: an apical, the upper external inserted on the apical third and the lower external between the external upper and internal spines, the internal is located before the middle section of the gonostylus. Gonocoxite: Length 321 (348 ± 29; n = 12), width 110 (116 ± 20; n = 12), with a median tuft with 9–12 strong, thick setae (n = 6) and 2–3 thin basal setae (n = 60). Short paramere with a square lobe in the basal half of the dorsal margin, the dorsal margin of this lobe is covered by setae of different widths and at the edge of the square, there are two setae pointing toward the tip of the epandrial lobe ( Fig. 8). Paramere length: dorsal margin 111 (172 ± 58; n = 12), ventral margin 117 (112 ± 8; n = 12). Parameral sheath: length of the dorsal margin of the ventral branch 46 (57 ± 11; n = 11) and length of the ventral margin of the ventral branch 47 (38 ± 9; n = 11). Epandrial lobe: 390 (402 ± 24; n = 12) long, 30 (31 ± 2; n = 12) wide. Cercus 113 (n = 1) (from paratype 5). Sperm pump ( Fig. 8): 159 (170 ± 12; n = 12) long. Ejaculatory apodeme (piston) 125 (133 ± 8; n = 12) long; Sperm sac: 45 (46 ± 4; n = 12) long. Aedeagal ducts ( Fig. 8)917 (917 ± 4; n = 11) long. Aedeagal ducts/sperm pump ratio 5.7.

Female: Unknown.

Distribution: Brazil, Pará state.

Etymology. This species is named after Dr. José Dilermando Andrade Filho, a researcher and colleague at the Instituto René Rachou, FIOCRUZ/MG, for his considerable contribution to the study of sand flies.

Remarks. Trichophoromyia is currently comprised of 47 species ( Galati 2018). This genus is identified by the following characters: dark body colour, the fourth palpus segment short- er than the second, and the presence of Newstead’s sensilla in the second palpus segment of both sexes. The males present the gonostylus with four well developed spines, and the apical spine is shorter than the length of the gonostylus; the size of the genitalia is equal to the length of the thorax. The females present two longitudinal rows of external teeth in the lacinia of the maxilla. In females, the spermathecae presents 25 or more rings, the apical being three or more times larger than the pre-apical ( Galati 2018). However, in this genus, the great majority of females are isomorphic, which makes it impossible to differentiate them, such that the identification of most species is only possible for male specimens ( Galati 2018, Young and Duncan 1994). There are six Trichophoromyia species in which the aedeagal ducts are four times longer than the sperm pump, the paramere presents a dorsal lobe, and the gonocoxite is three times longer than it is width: Th. castanheirai (Damasceno et al., 1945) , Th. napoensis (Young & Rogers, 1984) , Th. beniensis (Le Pont & Desjeux, 1987) , Th. howardi (Young, 1979) , Th. readyi (Ryan, 1986) and Th. sp. 1 de Araracuara (Morales & Minter, 1981) (unavailable name according to article 11.4 of the ICZN). Compared to these species, Th. dilermandoi sp. nov. can be differentiated from Th. napoensis and Th. beniensis based on the shape of the dorsal lobe of the paramere, which is triangular in these species and rectangular in Th. dilermandoi . In addition, both of the former species have more than 15 setae in the gonocoxite, while Th. dilermandoi presents 10–12 setae. Trichophoromyia howardi , Th. readyi and Th. sp. 1 de Araracuara can be differentiated by the shape of the dorsal lobe of the paramere, which is rounded, while Th. castanheirai can be distinguished from our new species based on the length of the digitiform region of the paramere, which is six times longer than it is wide in Th. castanheirai species and two times longer than it is wide in Th. dilermandoi . The presence of a fringe of long setae on the dorsal lobe of the paramere also differentiates Th.castanheirai , which are short and sparse in the new species.