By Frank Downs Parker
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Additional info for A Revision of the North American Species in the Genus Leptochilus (Hymenoptera: Eumenidae)
E. , IX-16-55 (GEB); 2 mi. E. , VIII-16-62 (MS); Sells, VI-31-32 (RMP) ; 30 mi. S. Safford, IX-24-56 (GDB) [UA]. -Cascyta ~~mbellata, Croton. Variation. - Structural and color characters are fairly constant among the few specimens known. -The elongate, flared second tergite immediately separates this from other known American Leptochihts. The mouthparts are shorter than in the other species of this group. -Arizona and New Mexico (Map 3). Leptochilus ellenae, new species (Fig. -Black; the following with whitish markings: Mandibles beneath, c1ypeus, scape in front, medial spot on frons, front margin of pronotum, spot on mesopleura, tegula except for central spot, parategula partially, band across scutellum, legs partly, apical bands on tergites I-II, sternites II-III; brick red beneath flagellomeres, legs partially, most of propodeu111, abdominal segment I, spots laterobasal on tergite II, wing bases; wings very lightly stained.
Distribution of the ru/inodus group. ( I ,.
K. ). OAXACA: 13 mi. E. Huajuapan, VII--4-53 (U. K. ). SINALOA: 8 mi. E. Elota, V-I8-62 (FDP, LAS). NAYARIT: 14 mi. E. San BIas, VII-21-54 (EIS). , V-1l-61 (JSG). -Specimens from southern Mexico are yellow instead of creamy white and lack the extensive markings on the mesopleura, tegula, and the scutellum. Also, the punctation in these specimens is coarser. -The reticulate punctation of the frons readily separates petil1ts from the other 2 species in this group, and it is the only species common in Mexico.
A Revision of the North American Species in the Genus Leptochilus (Hymenoptera: Eumenidae) by Frank Downs Parker