MALLOT A. — X YLOTA . 



71 



Hab. Mexico, Omilteme in Guerrero 8000 feet (K H. Smith). 

 Fourteen specimens. 



A species scarcely less striking in appearance than the preceding. Respectfully 

 dedicated to Mr. Herbert H. Smith. 



XYLOTA. 



Xylota, Meigen, Syst. Beschr. iii. p. 211 (1822). 



Micraptoma, Westwood, Intr. to the Modern Class. of Ins. ii., Syn. Gen. Brit. Ins. p. 136 (1840). 



Synopsis of the Central-American species. 



1. Abdomen and legs red rufipes, sp. n. 



Abdomen and legs for the most part black 2. 



2. Second abdominal segment and the anterior metatarsi light yellow pauxilla, sp. n. 

 Second abdominal segment with or without a small yellow spot . 3. 



3. Hind coxse of male without spur brachygaster, sp. n. 



Hind coxse of male with spur ; abdomen contracted basally . . stenogaster, sp. n. 



1. Xylota rufipes, s P . n., j ? . 



Male. Abdomen, except the first segment, and the legs, red. Yertical triangle elongate, shining black ; eyes 

 narrowly contiguous. Frontal triangle and face black, thinly whitish-pollinose, variable in different 

 reflections. Eirst two joints of the antennse black; third joint large, brownish-red or reddish-brown. 

 Thorax and scutellum black, feebly shiuing. Abdomen red ; first segment shining black. Legs of the 

 colour of the abdomen ; coxae black ; four front femora at the base, and the tip of the hind tibiae, blackish : 

 four front tarsi more yellowish, with their tips blackish; hind tarsi black; hind femora moderately 

 thickened, setulose below ; hind coxaj with a spur. Wings tinged with yellow, the stigma brown ; third 

 vein gently concave before the first posterior cell. 



Female. Front shining black, with a narrow pollinose band ; an indication of an opaque stripe on the second 

 abdominal segment ; no spur on the hind coxse. 



Length 10-11 millim. 



Hab. Mexico, Omilteme in Guerrero 8000 feet (H. H. Smith). 

 Four specimens. 



This species is nearest allied to X. bicolor, Loew, but may be distinguished by the 

 red legs and coxal spur of the male. 



2. Xylota pauxilla, sp. n., d ? . (Tab. II. figg. 9, 6 \ 9«, head ; 94, hind leg.) 



Male Face black in profile much receding, covered with a variable whitish dust, the oral margin in front 

 reddish • frontal triangle with a large shining spot. Antenn» black ; third joint large, a httle elongate, 

 about twice as long as wide ; arista yellowish. Yertical triangle slender, acute in front, grepsh-dnsted. 

 Mesonotum black, moderately shining, clothed, in large part, with short dense, erect yellow pile, 

 whieh in some reflections, gives a yellowish colour to the surface. Scutellum and pleura^ black. 

 Thdomen ■ first se-ment subshining metallic black ; second segment yellow, with an anterior triangular 

 and Posterior crescentic opaque black band ; third segment opaque black, shining bronze on the sides; 

 Lrth segment shiuing bronze, clothed on the posterior part with dense recumbent, f^f>> U# 

 black • the base of all the tibi» and the first two joints of the four antenor tarsa hght yeUow ; the first two 



