Heteromeringia decora, Lonsdale & Marshall, 2007

Lonsdale, Owen & Marshall, Stephen A., 2007, Revision of the New World Heteromeringia (Diptera: Clusiidae: Clusiodinae), Beiträge Zur Entomologie = Contributions to Entomology 57 (1), pp. 37-80 : 62

Heteromeringia decora sp. n.

( Figs 4 , 58 , Map 3 )

Description ( Figs 4 , 58 )

Female

Body length 4.9 mm. Bristles black. Two dorsocentral bristles. Ocellar bristle relatively long and well-developed. All genal bristles small and hair-like. Three fronto-orbital bristles. Arista pubescent. Thorax largely yellow; anterior 3/4 of presutural scutum brown (excluding small lateral emargination and wide truncate posterior emargination); remainder of notopleuron slightly brownish-orange; postsutural scutum with one pair of thin stripes outside dorsocentral rows (not touching posterior margin); scutellum yellow and subscutellum brown. Legs mostly yellow; fore coxa and basal half of femora white; fore femur with brown inner-apical spot; fore tibia brown laterally; fore tarsi dark brown laterally (remainder light brown); fore tibia and tarsi with slight lateral compression. Head yellow except as follows: frons brownish-orange (excluding lateral margins) with anterior half dark brown (velvety medially); first flagellomere with small spot around base of arista; back of head dark brown above foramen; face dirty yellow; distal half of palpus dark brown; gena brown medially on anterior half (fading posteriorly); gena silvery tomentose on dorsal 2/5 of anterior half. Abdomen brown with terminalia yellow. Wing darkly infuscated along R

2 2+3

(excluding base) and along distal 2/5 around R 4+54+5; lightly infuscated along all veins posterior

to R

4. M ratio 8.3.

4+5 1+2

Female terminalia

Not dissected.

Male

Unknown.

Etymology

The specific name refers to the distinct colouration of this species.

Holotype: MEXICO. Chiapas: Montebello N.P., 5000', 31.v.1969, B. V. Peterson (Mal.) (1 , CNCI).

Comments

Heteromeringia decora is easily separated from other New World Heteromeringia by its characteristic colouration, similar to that seen in some Indoaustralian species.

Figures

Map 3: Distributions of Heteromeringia apholisapholis sp. n., H. zophinazophina sp. n., H. decora sp. n., H. nervosanervosa sp. n., H. volcanavolcana sp. n., H. nanellananella sp. n., H. nigrifrons KERTESZ, and H. fucata HENDEL.

Figs 2-7: Dorsal colouration, head and thorax. 2 H. quadriseta sp. n., male; 3 H. medianamediana sp. n., male; 4 H. decora sp. n., female; 5-6 H. flavifronsflavifrons HENNIG, female; 7 H. lateralis sp. n., female.

Figs 54-63: wings; 54: Heteromeringia fucata HENDEL, 1936, female; 55: H. nitida JOHNSON, 1913, female; 56: H. nervosanervosa sp. n., male; 57: H. fumipennis MELANDERMELANDER & ARGO, 1924, female; 58: H. decoradecora sp. n., female; 59: H. czernyi KERTESZ, 1903, female; 60: H. lateralislateralis sp. n., female; 61: H. flavifrons HENNIG, 1938, female; 62: H. quadriseta sp. n., male; 63: H. medianamediana sp. n., male.