Hermetia pulchra Wiedemann, 1830

Pujol-Luz, José Roberto, Godoi, Fabio Siqueira Pitaluga De & Barros-Cordeiro, Karine Brenda, 2016, Description of the puparium of Hermetia pulchra (Diptera: Stratiomyidae) from Brazil, Zootaxa 4205 (4), pp. 357-364: 359-361

publication ID

http://doi.org/10.11646/zootaxa.4205.4.4

publication LSID

lsid:zoobank.org:pub:C58542D7-A1C7-4697-9984-E06780061619

persistent identifier

http://treatment.plazi.org/id/8E1887AB-D975-FFA4-FDF2-F9AFC562FE98

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scientific name

Hermetia pulchra Wiedemann, 1830
status

 

Hermetia pulchra Wiedemann, 1830 

Hermetia Latreille, 1804: 192  . Type species, Musca illucens Linnaeus  , by monotypy.

Thorasena Macquart, 1838: 177  . Type species, Hermetia pectoralis Wiedemann  , by original designation.

Stenothorax Agassiz, 1846: 369  . Unjustified emendation of Thorasena Macquart. Preoccupied  by Harris, 1826; Harris, 1827; and Harris, 1842.

Massicyta Walker, 1856: 8  . Type species, Massicyta bicolor Walker  , by monotypy.

Acrodesmia Enderlein, 1914: 3  . Type species, Acrodesmia luederwaldti Enderlein  [= Hermetia albitarsis Fabricius  ], by original designation.

Scammatocera Enderlein, 1914: 5  . Type species, Scammatocera virescens Enderlein  , by original designation, Syn. by James (1975:31).

pulchra Wiedemann. 

Hermetia pulchra Wiedemann, 1830: 24  . [Zoologisches Museum an der Humboldt- Universität ( ZMHU), Berlin, Germany]  : Suriname. Neotropical: Brazil (Amapá, Amazonas, Pará, Tocantins, Bahia *, Goiás, Distrito Federal *, Minas Gerais, São Paulo, Santa Catarina)  , Guyana, Suriname. [*New records]

Puparium: Length 23,4 mm, terrestrial; formed from the last instar (L6) larval skin (pupa exarata pharate), comprising head ( Figs. 5–7View FIGURES 5 – 9), three thoracic segments ( Figs. 5–9View FIGURES 5 – 9) and eight abdominal segments ( Figs. 8–9View FIGURES 5 – 9); cuticle dark-brown, densely covered with a bright golden pubescence; body soft, broad and dorsoventrally flattened; the integument more strongly hardened than in the larval stage, but preserving the larval features, especially the upper surface of the body, where the cuticle is impregnated by deposits of calcium carbonate, showing the appearance of a mosaic of hexagonal cells.

Head. Moderately flattened and conical in lateral view ( Fig. 7View FIGURES 5 – 9); mouthparts (mandibular-maxillary complex) forming a rigid, cylindrical structure, almost as long as the labrum in dorsal view; antenna short ( Figs. 10View FIGURES 10 – 13) and cylindrical, arising at the anterior part of the head; eyes prominent, rounded, arising at the middle part of the head ( Figs. 5–7View FIGURES 5 – 9, 10, 12View FIGURES 10 – 13); chaetotaxy ( Figs. 10, 12View FIGURES 10 – 13): 2 pairs of labral setae (LB), 2 pairs of clypeofrontal setae (CF), 1 pair of lateral setae (L), 1 pair of dorsolateral setae (DL), 1 pair of sublabral setae (SL), 3 pairs of ventrolateral setae (VL), and 3 pairs ventral setae (V).

Thorax. First segment shorter than the others; chaetotaxy ( Figs. 10, 11View FIGURES 10 – 13): with 2 rows of setae, 2 pairs of anterodorsal setae (AD) and 3 pairs of dorsal setae (D); in ventral view 2 pairs of ventral setae ( Figs. 11View FIGURES 10 – 13, 16View FIGURES 16 – 17), the median pair (V1) short, the second pair (V2) bifid and barbed ( Fig. 16View FIGURES 16 – 17); respiratory spiracle strongly sclerotized, prominent, setae absent ( Figs. 10, 11View FIGURES 10 – 13). Second and third segments with one row of setae, with 3 pairs of dorsal setae (D) and 3 pairs of ventral setae (V), third ventral setae (V3) bifid and barbed.

Abdomen. Abdominal segments 1–7 with the same shape ( Figs. 8–9View FIGURES 5 – 9), chaetotaxy ( Figs. 14–15View FIGURES 14 – 15): with a row of 3 pairs of dorsal setae (D); 3 pairs of ventral setae (V) and one pair of ventrolateral setae (VL) near the external margin of the body; in lateral view 1 pair of lateral setae (L), 1 dorsolateral (DL) and 1 ventrolateral (VL); ventromedial line of segment 6 with an elliptical-shaped sternal patch (spa); segment 8 rounded, with one pair of dorsocentral setae (DC), 1 pair of lateral setae (L), 1 pair of apical setae (AP), 1 subapical setae ( SAP), 5 pairs of ventral setae (V), anal slit short, its outer border with a dense pilosity, the inner border with various small spines.

Taxonomic notes. The puparium of H. pulchra  was compared with 16 puparia of H. illucens  . They shared a similar chaetotaxy ( Figs. 10–13View FIGURES 10 – 13), except by the presence of the short first pair of ventral setae (V1), and the second pair of bifid ventral setae (V2), with equal length of branches, and barbed in H. pulchra  ( Fig 16View FIGURES 16 – 17). In contrast, H. illucens  ( Fig. 17View FIGURES 16 – 17) presents a longer first pair of ventral setae (V1), and the second pair of bifid ventral setae (V2), with different length of branches, bearing two accessory short setae. Much of the setae of H. pulchra  are fully or partially broken as can be seen in related figures and this was primarily due by the manipulation of the puparium for observation and fixation in microtube. Nevertheless, the observations related to the puparium of H. pulchra  occurred soon after emergence while the majority of the setae were intact, so it was possible to safely establish all the variations related to the chaetotaxy of the two species.

The most notably difference between the puparia, is a very dense and bright golden pubescence covering the body of H. pulchra  ( Figs. 10–11View FIGURES 10 – 13). This is a quite striking feature between the two species and clearly visible without magnification, where H. pulchra  stands out. Larvae and puparia of H. illucens  exhibit a wide variation, and may also present golden setae ( Figs. 12–13View FIGURES 10 – 13), but never the same way and intensity displayed by H. pulchra  . Despite this, all the images taken, with different equipment, were unable to highlight this feature satisfactorily.

ZMHU

Zoologisches Museum der Humboldt Universitaet

SAP

Hokkaido University

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Stratiomyidae

Genus

Hermetia

Loc

Hermetia pulchra Wiedemann, 1830

Pujol-Luz, José Roberto, Godoi, Fabio Siqueira Pitaluga De & Barros-Cordeiro, Karine Brenda 2016
2016
Loc

Hermetia

Latreille 1804: 192
Loc

Thorasena

Macquart 1838: 177
Loc

Stenothorax

Agassiz 1846: 369
Loc

Massicyta

Walker 1856: 8
Loc

Acrodesmia

Enderlein 1914: 3
Loc

Scammatocera

Enderlein 1914: 5
Loc

Hermetia pulchra

Wiedemann 1830: 24