Pseudorhopalia, J. Wilcox & N. Papavero, 1971

J. Wilcox & N. Papavero, 1971, The American Genera of Mydidae (Diptera), with the Description of three new Genera and two new Species, Arquivos de Zoologia 21 (2), pp. 41-119 : 112-113

Pseudorhopalia , gen. n.

Rhopalia Macquart of d'Andretta & Carrera, 1951: 7, pl. 1, figs. 1-8 (misident.).

Head in anterior view one and one-third times as broad as high; face at antennae one-half width of head; oral margin at about one-fourth distance from lower eye margin to antennae. Gibbosity densely pollinose. Proboscis similar to Messiasia ) labella about two-thirds length of oral cavity; palpi atrophied. Antennal segment 1 cylindrical and about two times as long as broad; 2 one-half length of 1 and about as broad as long; 3 slender and about two times as long as 1-2; club subequal in length to 3, at three-fourths its length about one-half as wide as long.

Mesonotum densely pollinose, narrow margins of central stripe anteriorly and narrow intermediate stripes bare of pollen; hairs short, sparse, semi-erect on lateral margins and dorsocentral stripes. Scutellum densely pollinose with central basal bare spot; without hairs. Postscutellum densely pollinose, slightly rugose laterally, bare. Pleura and coxae densely pollinose; sparse, short hairs on episternum-L, pteropleura, and metasternum.

Abdominal tergite 1 and base of 2 densely pollinose; 1a slightly rounded, bare; 1p with short, sparse, erect hairs; hairs on 2-7 short, sparse, recumbent; bullae narrow, about three times as long as wide (Fig. 57). Sternites with short, sparse, recumbent hairs, 7-8 with sparse, long hairs, d' 8 about one-seventh as long as 7. Female with apical circlet of spines. Male genitalia (Figs. 132-134): hypandrium completely fused to basistyli, resulting structure hemispherical, rounded in ventral view; the whole structure presents a great development, and is also fused by means of a well developed bridge with the aedeagus; the latter is a thick cone, slightly pointed backwards (dorsally). The combined volumes of these structures render the genitalia quite open, and the cerci and anal lamellae are bent backwards; cerci and triangular epandrial halves coalescent on their bases. (See also d'Andretta & Carrera, 1951: pI. 1, figs. 5-8).

Fore femora swollen and about two times width of curved tibiae; hind femora slender, about ten times as long as wide; venter with about eight sharp spines; hairs short and recumbent. Hind tibiae cylindrical with three long apical bristles. Hind metatarsus about three times as long as wide, subequal in length to segments 2-3.

Alulae