EXOMALOPSIS (STILBOMALOPSIS) SOLANI COCKERELL

DIAGNOSIS: Postdefecating larva of this species is similar to that of Exomalopsis auropilosa except the antennal papilla is very low, the width of the salivary opening is about one-half the distance between the bases of the labial palpi, and spines along the lower edge of the cusp are about the same stoutness as the teeth along the top edge. The mandible of the postdefecating larva is apically bidentate on all specimens; predefecating larvae are unknown. Its spiracular subatrium consists of about 12 chambers, as in Exo. solidaginis . The patch of spicules on each side of abdominal segment 10 is less conspicuous in this subgenus compared with Exomalopsis s.s.

MATERIAL STUDIED: Two postdefecating larvae: NM: Hidalgo Co.: 1 mi N Rodeo, VII-15- 1974 (K.C. Rozen); four postdefecating larvae: AZ: Cochise Co., Apache, VIII-30, 31-1988 (B.B. Norden) .

REMARKS: Nesting biology was described by Norden et al. (1994).