Gumilla adspersus Navás, 1912

Martins, Caleb Califre, Ardila-Camacho, Adrian & Aspöck, Ulrike, 2016, Neotropical osmylids (Neuroptera, Osmylidae): Three new species of Isostenosmylus Krüger, 1913, new distributional records, redescriptions, checklist and key for the Neotropical species, Zootaxa 4149 (1), pp. 1-66 : 6-9

Gumilla adspersus Navás, 1912

( Figs 2 , 3 )

Gumilla adspersus Navás, 1912: 189 , fig. 24 (forewing). Refs. Navás (1912), Penny (1977), Ardila-Camacho & Noriega (2014). Holotype male (NHMW).

Type-locality. “Brasil, Hetschka, Blumenan”.

Material examined. Holotype, Brasil: “ Hetschka, Blumenan ”, (1♂ NHMW).

Distribution ( Fig. 43 ). “ Brasil, Hetschka, Blumenan”; probably Blumenau, state of Santa Catarina, Brazil.

Redescription. Head ( Figs 2 D, E). Labrum, clypeus, and frons pale yellow; labial and maxillary palpi pale yellow with small light brown setae; antennae pale yellow, longer than forewing, scape pale brown, as wide as long with many light brown setae, flagellum with 102 segments, flagellomeres twice as long as broad with two rings of long setae. Ocelli absent; vertex and occiput pale brown.

Thorax ( Figs 2 A, C). Prothorax pale yellow, as long as wide; entire surface of pronotum covered with numerous light amber setae arising from protuberant bases, mainly on the sides. Mesothorax and metathorax as long as wide, meso- and metanota pale yellow with some dark brown spots, mainly near to wing bases, entire surface covered with fine pale yellowish setae.

Legs ( Fig. 2 B). All segments pale yellow, procoxa almost as long as femur. Mid- and hindcoxae short; femora and tibiae with numerous small light brown setae. Tarsi and tarsal claws dark brown, arolium present.

Wings ( Fig. 2 B). Wings broad (maximum width of forewing 6.72 mm, hindwing 5.37 mm) with irregular reticulation and hyaline membrane. Light brown veins, with some dark spots. Forewing with abundant small pale setae on the wing margin; wide costal field narrowing near the wing apex, with 54 crossveins, none of them forked; pterostigmal area pale brown, with a small brown spot; whitish subcostal field with five or six elongated brown spots and with one crossvein located basally; Rs forked near to wing base, with six branches; MP forked before the midlength of wing; numerous dark amber spots on crossveins; nygmata absent. Hindwing with small pale setae on the wing margin; narrow costal field, with 44 crossveins, all of them simple; pterostigmal area hyaline; subcostal field with one crossvein basally located; Rs with six branches; dark spots and nygmata absent.

Abdomen ( Figs 2 A, B). Tergites of males light brown with some black spots, all segments covered with long light yellow setae.

Male genitalia ( Fig. 3 ). Ninth tergites mostly reduced; ectoproct divided into two large lobes, with two groups of elongated and brown setae; ninth sternite semi-triangular in ventral view, posteromedially bluntly produced. Complex of ninth gonocoxites terminally with two subtrapezoidal lobes, divergent and densely covered by thick, short setae, connected by a sclerite which could be the fused ninth gonapophyses; complex of tenth gonocoxites Cshaped, dorsally curved; a small unpaired sclerite probably represents the reduced eleventh gonocoxites.

Female unknown.

Remarks. Gumilla adspersus is similar to G. longicornis , these species have extremely elongated antennae, lack ocelli and lack nygmata. Navás in 1912 cited the type location as “ Brasil, Hetschka, Blumenan ”, this location probably refers to the city of Blumenau , capital of Santa Catarina State , Brazil.

Figures

FIGURE 2. Holotype of Gumilla adspersus Navás, 1912, male. A) Habitus dorsal; B) Wings; C) Head and thorax, dorsal view; D – E) Head, dorsal view; F) Labels. Photos provided by Harald Bruckner (Naturhistorisches Museum (NHMW), Wien [= Vienna], Austria).

FIGURE 3. Holotype of Gumilla adspersus Navás, 1912, male. A – B) Terminalia ventral and lateral view; C – D) Different views of gcx IX and gph IX; E) Complex of gcx X F) gcx XI; G – H) Genital sclerites, ventral view. ect (Ectoproct), gcx X (tenth gonocoxite), gcx XI (eleventh gonocoxite). Photos provided by Harald Bruckner (Naturhistorisches Museum (NHNM), Wien [= Vienna], Austria).

FIGURE 43. Distribution of Neotropical Osmylidae species. 1) white star, I. contrerasi; cross, Isostenosmylus sp.; red star, I. bifurcatus n. sp.; white triangle, I. septemtrionalandinus; white circle, I. fasciatus; red triangle, I. irroratus n. sp. 2) asterisk, I. nigrifrons; cross, I. morenoi; red circle, I. julianae n. sp.; star, I. fusciceps; white circle, I. fasciatus. 3) circle, I. pulverulentus; red star, G. adspersus. 4) white star, K. digoniostigma; white circle, K. tjederi; green circle, K. falcatus; red triangle, K. crenatus; cross, Ph. caprorum.