DIPTERA. 449 
Hab. Mexico! (coll. Bellardi), Xucumanatlan and Omilteme in Guerrero 7000 to 
8000 feet (H. H. Smith). 
Five males, one of which is in the collection of Prof. Bellardi, in Turin. [Mr. 
Townsend remarks of this species (Canad. Ent. 1893, p. 166) “doubtless C. occidua, 
Walk.” | 
8. Cistogaster variegata *. 
Cistogaster variegata, v. d. Wulp, Tijdschr. voor Ent. xxxv. p. 187’. 
Head ochraceous; thorax and scutellum yellowish-grey, the thorax with dark stripes ; abdomen rufous, with 
black markings ; antenne and legs black. 
Length 4 millim. 
Front much narrower than the eyes, ochraceous ; frontal band black; face and cheeks pale ochraceous, the 
face slightly prominent towards the oral margin; occiput grey; beard white. Antenne black; third 
joint a little longer than the second. Proboscis black; palpi pale rufous. Thoracic dorsum yellowish- 
brown, with four dark stripes; shoulders and pleure grey; scutellum obscure cinereous. Abdomen 
rufous, the sides greyish-white ; base of the first segment black ; on the second segment two black lines, 
separated by a grey dorsal band, and laterally two black spots; hind margin of the third segment black, 
in the middle interrupted by a grey dorsal band; fourth segment with two trigonal black spots. Legs 
black ; foot-claws and pulvilli somewhat elongate, the pulvilli fuscous. Tegule yellowish-white. Wings 
greyish-hyaline, slightly infuscated at the base; small cross-vein nearly on the middle of the discal cell; 
apical cross-vein straight ; posterior cross-vein a little curved. 
Hab. Mexico ', Chilpancingo in Guerrero (H. H. Smith). 
A single male specimen. This and the two preceding species (C. ferruginosa and 
C. hirticollis) agree in general aspect, and in coloration and markings—the ochraceous 
head, the yellowish-brown thorax with dark stripes, and the rufous abdomen with more 
or less distinct black pattern. In C. ferruginosa the markings on the abdomen are 
obsolete ; in C. hirticollis they form a more conspicuous dorsal band ; and in C. varie- 
gata (which is smaller than the others) the abdomen shows several regularly-arranged 
black spots. Mr. Townsend (Canad. Ent. 1893, p. 166) remarks that C. variegata 
‘‘seems to be only a variety of C. occidua, Walk.” | 
OCYPTERING (p. 5). 
OCYPTERA (p. 5). 
In my first enumeration a single species only of this genus is mentioned from Mexico, 
whence three others are now known. They may be separated in the following 
manner :—— 
1. Abdomen partly rufous . . . . . . 2. 
Abdomen wholly black . . 2. 1 ee ee ee ee eee 
* (The type of this species has been destroyed by an Anthrenus.—Ep. ] 
