no. 1834. NEW SPECIES OF STREPSIPTERA— PIERCE. 491 



TRIOZOCERA TEXANA, new species. 



Described from one specimen collected by Mr. J. D. Mitchell at 

 light, July 4, 1908, at Victoria, Texas. 



Male. — Length, 2.2 mm.; wing expanse, 5 mm.; brown; wings 

 clouded, veins dark and distinct. Head transverse; eyes prominent, 

 normal; antennae (missing in type). Wings with seven primary 

 veins from base; the first two (costa +subcosta) strong, united, 

 bracing the margin to beyond its middle; parallel to this and very 

 close to it is the third (radius), which is much lighter, wavy, and not 

 as long as the first two; about opposite the tips of the subcosta a 

 short wavy line appears, which is evidently an interrupted continua- 

 tion of the radius; the fourth primary (medius) arises contiguous to 

 the radius but diverges rapidly ; between the bases of these two veins 

 is a short darkened area; the medius extends three-fourths of the 

 distance to the margin of the wing, at about the middle of the wing- 

 there arises a strong branch detached from the main vein, which 

 extends to the margin of the wing; behind the medius and somewhat 

 nearer its base arises another strong branch, also detached at its 

 base and extending to the margin of the wing; the fifth primary 

 (cubitus) diverges from medius at the same angle as medius diverges 

 from radius, and extends as a strong vein to the outer margin; the 

 sixth vein (first anal) is halfway between the cubitus and second anal 

 and very strong, but reaching only a little way beyond the middle of 

 the wing; the seventh primary (second anal) is also strong and reaches 

 the outer margin; in the region of the third anal there is a very broad 

 infuscation which might possibly stand for that vein. Anterior and 

 median coxae transverse; trochanters arising at the sides, stout, 

 almost as long as the femora; posterior coxae prominent, conical; 

 trochanters stout, clavate, one-half as long as femora; tibiae all 

 slightly shorter than femora; tarsi five-jointed, first joint two-thirds 

 as long as the tibia, second almost half as long as first; third slightly 

 shorter; fourth one-half as long, broadened at apex and cupped for 

 reception of fifth; fifth slender, two-thirds as long as third and 

 armed with two claws. Oedeagus long and slender, barely sinuate, 

 acute at tip. 



Type.— Cat. No. 13713, U.S.N.M. 



Family MENGENILLID^ Hofeneder (1910a). 



Type genus. — Mengenilla Hofeneder (1910a). 



Antennae six-jointed, with the third, fourth, and fifth joints later- 

 ally produced, and the sixth elongate; tarsi five-jointed. 



Genus MENGENILLA Hofeneder (1910«). 



Type of genus. — M. chobautii Hofeneder (1910a). 

 Name based on the generic name Mengea. 



The habits of the genus are not known, and it is at present restricted 

 to North Africa. 



