Paradichosia lui, Yang, Shih-Tsai, Kurahashi, Hiromu & Shiao, Shiuh-Feng, 2014

Yang, Shih-Tsai, Kurahashi, Hiromu & Shiao, Shiuh-Feng, 2014, Keys to the blow flies of Taiwan, with a checklist of recorded species and the description of a new species of Paradichosia Senior-White (Diptera, Calliphoridae), ZooKeys 434, pp. 57-109 : 73-75

Taxon classification Animalia Diptera Calliphoridae

Paradichosia lui sp. n. Figs 7, 9

Description.

Male. Head: Holoptic, eyes hairy; frons index <0.01; frontal stripe dark brown to black, obliterated at narrowest point of frons; parafrontal dark brown to black, silver pollinose, setulose, with about 7 pairs of orbital bristles (ori); parafacial dark brown to black, silver pollinose, setulose, about as wide as width of AS3; face dark brown to fuscous, slightly gray pollinose, facial carina not developed; facialia dark brown to fuscous, gray pollinose, with several hairs above vibrissa; mediana dark brown, slightly pollinose, with some hairs below; vibrissaria brown, with several bristles; vibrissa developed; epistome yellowish, slightly projecting forward, not obviously demarcated from face; gena blackish, gray pollinose, clothed with black hairs; postgena concolorous with gena, not demarcated from gena, with mostly black hairs but yellowish hairs posteriorly; occiput concolorous with gena, whitish gray-dusted, clothed in yellowish soft hairs at inner part and black hairs along outer margin, epicephalon and upper parts along posterior eye margins black, slightly dusted; AS2 fuscous, reddish to brown, at joint of AS3 pale apically; AS3 fuscous, somewhat reddish to brown at joint of AS2, yellowish white pollinose, about 3 times as long as AS2; arista dark brown, long plumose on basal 2/3; palpus orange, with black setulae.

Thorax: blackish, thinly whitish gray pollinose on dorsum and pleura; humerus, postalar callus and scutellum concolorous with thoracic dorsum; prosternum black, with brown hairs below; propleuron yellowish to blackish, whitish pollinose posteriorly, with yellowish brown hairs; mesopleuron and sternopleuron clothed with black hairs and bristles; supraspiracular convexity pubescent, without long upstanding hairs; hypopleuron clothed in black hairs and bristles; other pleural hairs also blackish; mesothoracic spiracle blackish brown on upper part, lower part brown; metathoracic spiracle fuscous; postalar declivity fuscous black, with black hairs; tympanic tuft present; anterior parasquamal tuft present.

Chaetotaxy: ac 2+3; dc 2+3; ia 1+2; humeral bristles (h) 3; ph 2-3, 2 strong, 1 fine bristle present in front of strong inner ph; prs 1; supraalar bristles (sa) 3; postalar bristles (pa) 3; st 2+1; msc 5; discal scutellar bristle (dsc) 1; notopleural bristles (n) 2; propleural bristles (pp) more than 5; pst 1.

Wings: Brownish hyaline; veins brown; epaulet black, with black setulae and bristles; basicosta blackish; subcostal sclerite dark brown, yellowish pubescent; node of 2nd (R2+3) and 3rd (R4+5) longitudinal veins with a few black setulae above and below; 4th longitudinal vein (M1+2) forming right angle; cell R5 open in wing margin; section of 4th vein from bend to wing margin slightly curved inward; alar squama fuscous, paler at base with golden brown pubescence, semitransparent on apical part, with tuft of dark brown hairs at inner lower margin; thoracic one fuscous, lobulate bare on dorsal surface. Halter brownish, with yellowish apex.

Legs: Femora dark brown to black, tibia brownish, tarsi blackish; fore coxa dark brown to black, more or less whitish grey pollinose; mid and hind coxae brownish black, more or less whitish grey pollinose; fore tibia with 1 p and row of several short ad; mid tibia with 1 ad, 1 p, 2 pv, and 1 v; hind tibia with 3 ad, 2-3 pd, and 2-3 av.

Abdomen: Blackish, submetallic, with bronze tinge, slightly whitish grey pollinose, fine black median stripe more or less distinct on T3; hairs and bristles black; T1+2 with 2-4 lateral marginal bristles; T3 with lateral and median mb; T4 with row of mb; T5 with row of mb and several discal bristles; ST2 large, elongated, blackish, whitish gray pollinose except for margin, clothed in black hairs only; ST3 and ST4 with tuft of short hair as shown in Fig. 9G, H. ST5 with lobes narrower and bended inward at tip as shown in Fig. 9C.

Hypopygium small in size, withdrawn from sight; genitalia as shown in Fig. 9A, B, D, E, F, aedeagus with fine and slender paraphallus and acrophallus.

Female. Unknown.

Length: 9.5 mm

Holotype ♂, TAIWAN, Yilan, Datong Township, Jiuliao River, ca. 158 m, riverside, 26.i.2013, S. T. Yang (NTU). Paratypes, 1♂, Tatung, 28.xii.1991, C. L. Chung (NSMT); 1♂, Tatung, Chilanshan, Chihtuan, 15.xi.1961, J. C. Lien (NSMT).

Etymology.

The specific epithet lui is named after Mr. I-Tse Lu, who guided the first author to the collecting site and helped collect specimens.

Type depository.

Holotype (♂) is deposited in the Insect Museum of National Taiwan University (NTU); two paratypes (type series NSMT-I-Dip6958, 6959) are deposited in the National Museum of Nature and Science, Tokyo (NSMT).

Diagnosis.

This new species, which has hairy eyes and a blackish scutellum, is similar to Paradichosia dubia (Malloch) from Java, Indonesia in general morphology. Nevertheless, it can be easily distinguished from Paradichosia dubia by having very short hairs on the tuft of ST3 in the male.

Bionomics.

Adults were found on the bush near the stream side.

Distribution.

Taiwan (Yilan).