Anthomyid genera Hammomyia and Hylephila. 325 



Hy. andicola Bigot, $ (Type) {= Hylemyia andicola 

 Bigot, (^ nee $). 



Frons at narrowest part about twice as wide as third antennal 

 joint. Arista very slightly pubescent. Three or four upcurved 

 bristles on oral margin below cheeks. Thorax with three con- 

 spicuous brownish stripes, the other (almost linear) darker stripes 

 down lines of dorsocentral bristles only visible from certain points 

 of view. Pre- alar bristle distinct. Prosternal plate bare. End of 

 abdomen hardly meriting the term " villeux," the last visible 

 segment with the usual hind-marginal bristles — all near the margin 

 ■ — and not particularly strong; the hidden segments with a few 

 bristly hairs on their hind-marginS. Ovipositor ending in the 

 usual strong upcurved spines. Only the hind tibiae could be 

 called " rougeatres." Front tibiae with two bristles behind ; 

 middle tibiae with one anterodorsal and one posterodorsal both 

 below middle, one behind at basal third and one more posteroventral 

 opposite posterodorsal bristle. Hind femora with about six antero- 

 ventral bristles on apical two-thirds and 1-2 moderately long 

 posteroventral bristly hairs towards base. Hind tibiae with two 

 short anteroventral bristles, 3-4 anterodorsal and 3 posterodorsal — 

 in both cases the third from the base the longest. 



Length 6 mm. 



General note on the illustrations. 



The figures of the male genitalia were made after treat- 

 ment with KOH, and are all drawn to the same scale 

 (magnified about 33 diameters). 



Figs. 1-11 represent the so-called dorsal view of Schnabl 

 and Dziedzicki, though in its natural position with reference 

 to the abdomen of the insect it is more or less ventral, 

 the greater part of the lamellae or " claspers " being 

 tucked away under the last abdominal sternite. In these 

 figures the bristles on the basal part are omitted. 



Figs. 16-116 are profile views with all bristles except 

 those on the lamellae and aedeagus omitted. In the case 

 of 16, 26, and 76 the parts are in their natural positions, 

 in the other figures the sternite bearing the aedeagus is 

 shown separated from the corresponding tergite in order 

 to give a better view of the appendages, while in 86 no 

 profile of the tergal parts is given, it being practically 

 identical with that shown in figure 96, 



Figs, la-lla represent the sternite and^aedeagus viewed 



