AVJi. 22 UTTLE KNOWN DIPTEEA ALDEICH 19 



segment with a marginal row of about eight bristles and two or tliree 

 feeble discal bristles which are not represented on the precoeding seg- 

 ments. Wing hyaline, third vein with two or three bristles at base; 

 bend of fourth vein rounded and obhque; first posterior cell distinctly 

 closed in the margin in one specimen, in the other barely closed, in 

 both cases ending just before the exact tip of the wing. Legs black; 

 pulvilU not enlarged. 



Length, 3.3 and 3.G mm. 



Described from two males reared by Eidred L. Jenne at Siloam 

 Springs, Arkansas, on July 5 and 15, 1907 (Quaintance Nos. 4010 and 

 4011). The host is Carpocapsa pomonella Linnaeus, the codling 

 moth. 



Type.— Cat. No. 28905, U.S.N.M. 



Named in honor of E. L. Jenne, whose early death was a loss to 

 entomology. 



In my key to LixopJiaga this species would run to mediocris, from 

 which it differs in having narrower parafacials, wider third antennal 

 joint, more pollinose abdomen, and first posterior cell closed in the 

 margin of the wing. It has a less protulierant front than variabilis 

 and orbitalis. 



Genus PETEINA 



Peteina Meigen, Syst. Beschr., vol. 7, 1838, p. 214. — Brauer and Bergenstamm, 

 Zweifl. Kais. Mus., pt. 4, 1889, p. 138; pt. 5, 1891, p. 387. 



PETEINA HYPERDISCALIS, new species 



Male and female. — Differs from the European erinaceus Fabricius, 

 the type of the genus, in having very large discal bristles on the 

 first, second, and third abdominal segments, which are larger than 

 the marginals just behind them; this is especially remarkable on the 

 first segment, where discals of any size are almost if not quite un- 

 known. In this genus the apparent first segment is elongated, equal 

 to the fourth and longer than the second or third. While erinaceus is 

 said to have no discals, the marginals at the middle are set con- 

 siderably forward of those at the sides in the single European speci- 

 men (determined by Bezzi) in the National Museum. The new 

 species has the abdominal hair more erect and almost bristly. 



Elongate, shining black, all parts very bristly, the thorax with 

 only the thinnest white or bluish-white pruinosity. Head with thin 

 bluish-white pollen, bulging behind, front prominent, bristles long 

 and stout, a row on parafacial reaching nearly as far down as vibris- 

 sae. Palpi black. Eyes bare. Antennae black, second joint three- 

 fourths as long as third. Male with large proclinate orbitals. An- 

 terior acrostichals wanting. Third vein setulose far beyond cross 

 vein. First posterior cell open far before wing tip. No pteropleural. 



Length, 8.5 to 9 mm. 



