224 DIPTERA. 
the end of the genus), and among them one, Sophia jilipes, with very long legs, which 
may have induced him to indicate this as one of the generic characters. 
Besides Dexia melaleuca, Wiedem., which must be considered as the type of the genus 
Scotiptera, I have found in the Central-American collections an example of still another 
species, which fully agrees with it in the above-mentioned generic characters. 
1. Scotiptera melaleuca. (Tab. V. figg. 5; 5a, head.) 
Dexia melaleuca, Wiedem. Aussereur. zweifl. Ins. ii. p. 369. no. 2; Perty, Del. Anim. Art. Bras. 
p. 186, t. 37. fig. 7. 
Scotiptera melaleuca, Macquart, Dipt. Exot. ii. 3, p. 83, t. 9. fig. 1. 
? Sophia punctata, Rob.-Desv. Essai sur les Myodaires, p. 318. no. 2. 
Black; thorax with four white stripes; abdomen with sharply limited whitish spots; wings uniformly 
black. 
Length 11-13°5 millim. 
Head white, with blackish reflections ; frontal band velvety black, immediately before the root of the antenne 
a very shining spot. Antenna, proboscis, and palpi black; second antennal joint with a long and some 
shorter bristles. Thoracic dorsum with four narrow silvery-white stripes, the two lateral ones being 
interrupted (in the form of small irregular spots) before the transverse suture; pleure with .whitish 
reflections ; scutellum piceous. Abdomen black, with whitish markings, ovate, a little broader than the 
thorax, very similar in both sexes, only somewhat shorter in the female; the light markings have a 
yellowish tint and consist of a narrow front margin to the second segment, two semicircular spots on the 
third segment, and two similar, though smaller, spots on the anal segment, these latter spots sometimes 
absent ; ventral surface with two silvery-white trigonal spots on each of the first three segments. Legs 
black ; pulvilli yellowish-grey. Tegule brown. Wings intense blackish-brown; small cross-vein before 
the middle of the discal cell; apical cross-vein slightly concave; posterior cross-vein distinctly curved. 
Hab. Guatemata, San Gerdnimo (Champion) ; Panama, Bugaba, Volcan de Chiriqui 
(Champion).—Braziu (Wiedemann). 
One female and three male specimens. 
2. Scotiptera varipennis, sp. n., °. 
Thorax grey, with four black stripes ; abdomen black, the front borders of the second and third segments 
rufous with white reflections; antenne, palpi, and legs black ; wings with a dark brown shadow in the 
middle and on the costa. 
Length 12 millim. 
Head silvery-white ; frontal band velvety black, with a shining spot before the root of the antenne. Antenne, 
proboscis, and palpi black ; second antennal joint with a long and some short bristles ; the palpi slightly 
thickened towards the tip, which has a whitish tomentum. Thoracic dorsum with four black stripes, 
the outer stripes broader and interrupted at the transverse suture; scutellum somewhat rufous. Abdo- 
men elongate-oval, not broader than the thorax, black, the second and third segments with dark rufous 
front borders, which in the middle are interrupted and laterally varied by whitish reflections. Legs 
black, slender, with scattered, rather weak bristles; foot-claws and pulvilli short. Tegule yellowish- 
white. Wings brownish-grey, more intensely so along the veins; a dark brown shadow covers the upper 
basal cell and the region below the mediastinal cell, and extends from there along the costa ; venation as 
in S. melaleuca, the appendage on the fourth vein a little longer. 
Hab. Mexico, Atoyac in Vera Cruz (H. H. Smith). 
A single female specimen. 
