ART. 23 REVISION OF MACROCENTRUS MUESEBECK 33 



and the apical segment of the labial palpus being but little longer 

 than the preceding segment. In having the nervulus postfurcal by 

 distinctly less than its length, the mesonotum completely testaceous 

 without blackish markings on the lobes, the second and third tergites 

 always entirely testaceous, the base of mandibles testaceous rather 

 than yellowish white, and the male scape not strongly enlarged, 

 ancylivorus differs further from most specimens of those two species. 

 Moreover, the second and third abdominal tergites are smoother .than 

 is usually true in mstahUis, while the cheeks are narrower and the 

 antennae usually with fewer segments than in laspeyresiae. 



The face is usually considerably broader than long, although not 

 so distinctly so in some specimens from the Southern States, in 

 these cases an increase in the size of the eyes being accompanied by a 

 correspondingly narrower face and shorter malar space; antennae 

 usually 42 to 48 segmented, the scape of the male not much thickened ; 

 thorax with pleura mostly smooth; first discoidal cell much longer 

 than first cubital ; submedian cell usually only weakly hairy apically ; 

 mediella nearly three times as long as lower abscissa of basella ; sec- 

 ond abdominal tergite usually smooth posteriorly, and with the 

 depressed lateral margins broad at base; the third tergite usually 

 smooth or with only faint suggestion of lineolation; ovipositor 

 sheaths as long as the body. Testaceous or testaceo-ferruginous, 

 with more or less of metanotum, propodeum, first tergite, and the 

 fourth and following tergites often more or less blackish or infus- 

 cated. 



The foregoing discussion and descriptive notes are based very 

 largely on the type series and many other specimens in the national 

 collection representing a ran^e in distribution from New Jersey to 

 Texas and New Mexico. The principal host appears to be Laspeyresia 

 molesta Busck; but the type series and some additional specimens 

 were reared from the strawberry leaf-roller (Ancylis comptana 

 Frolich), while others are recorded from the larvae of 'EpibleTna 

 strenuana Walker (Moorestown, N. J., 1929), Canarsia sp. (Ben- 

 tonville. Ark., 1919), Epagoge sp. (Virginia, 1910), HoTneosoiria 

 electellum Hulst, Anacavipsis sp. (Texas), and Carpocapsa pomon- 

 ella Linnaeus (New Mexico, 1912) ; I have also seen considerable ad- 

 ditional material, all from L. molesta^ sent me by H. W. Allen, in 

 charge of the oriental fruit moth investigations of the Bureau of En- 

 tomology, at Moorestown, N. J., and by W. E. Britton, of the Con- 

 necticut Agricultural Experiment Station. Still other material 

 studied includes collected specimens in the collection of the Boston 

 Society of Natural History, taken on the islands of Nantucket and 

 Marthas Vineyard, Mass., and at Fall River, Mass. (1913) ; and a 



