Purenleon adamsi Miller and Stange, 2014

Miller, Robert B. & Stange, Lionel A., 2014, A revision of the genus Purenleon Stange (Neuroptera: Myrmeleontidae: Nemoleontini), Insecta Mundi 2014 (384), pp. 1-67 : 24-26

Purenleon adamsi Miller and Stange , new species

Figures 42–46

Holotype male, 3 miles east Izucar de Matamoras , Puebla, Mexico, 1.IV.1962, L. Stange ( FSCA)

Diagnosis. Pronotum without long setae laterally; hindtibial spurs not reaching apex of tarsomere II; paramere complex, elongate, with well-developed dark sclerotized area at median edge extending toward gonarcus where it extends laterally to end of paramere plate; also, small dark brown sclerotized area extending laterally at middle; lower one third of paramere widened with small process laterally defined by a U-shaped area; female pregenitale ( Fig. 46 ) a broad plate (about five times wider than long) with short median extension which is acuminate.

Holotype male. Length of forewing and hindwing about 26 mm. Coloration: face pale brown with dark brown band below and between antennal fossae; mouthparts mostly pale brown, distal palpomere of labius with dark brown; antenna mostly dark brown with narrow pale brown apices; pronotum and thorax ( Fig. 42 ), mostly brown, incomplete light brown median line on pronotum, mostly complete on scutelli; forecoxa mostly pale brown except basally; forefemur mostly dark brown, other femora mostly pale brown; foretibia and midtibia pale brown with large dark brown area subbasally, at middle and subapically; hindtibia mostly pale brown with some dark spots at setal bases, inconspicuous dark brown area toward base and narrow apical dark brown spot ( Fig. 43 ); tarsi mostly light brown with dark brown apex on distal tarsomere and at middle; wings ( Fig. 44 ) without conspicuous suffusion; abdominal tergites mostly dark brown with large pale brown spot anteriorly, sternites mostly pale brown. Chaetotaxy: pronotum without elongate white bristles at lateral margin, sometimes shorter, usually black, setae present which are much shorter than those on forecoxa; forecoxa with some white bristles longer than coxal diameter, restricted to posterior margin; forefemur without long setae on exterior face but with short decumbent white and brown setae; femora mostly with white bristles, tibiae mostly with black bristles; midfemoral sense hair about one-half as long as forefemoral sense hair. Structure: distal palpomere of labius weakly swollen; antenna with about 40 flagellomeres, weakly clavate, flagellomere I longer than broad, rest broader than long; pronotum a little broader than long measured along midline; hind basitarsus about six times longer than wide; foreleg basitarsus about four times as long as as median diameter, foretibial spurs reaching to middle of tarsomere III; pretarsal claws shorter than forebasitarsus; forewing costal area expands fairly abruptly from near base, without interconnected crossveins; CuP + lA of forewing runs obliquely to hind margin along posterior fork of CuA at a point near origin of radial sector; hindleg longer than others; hindtibial spurs not reaching apex of tarsomere II; male genitalia ( Fig. 45 ) with strongly arched gonarcus, thick, widest at middle, no mediuncus; paramere complex with elongate, with well-developed dark sclerotized area at median edge extending toward gonarcus where it extends laterally to end of paramere plate; also, small dark brown sclerotized area extending laterally at middle; lower one third of paramere widened with small process laterally defined by a U-shaped area.

Female. Fig. 46 . About as described for male except terminalia with ectoproct with short posventral lobe which is much broader than long, slightly bent upward; posterior gonapophyses widely separated, about five times longer than median diameter, strongly curved inward at middle; lateral gonapophyses separated, about five times longer than greatest width with digging setae concentrated toward apex; pregenitale a broad plate (about five times wider than long) with short median extension which is acuminate; spermatheca a long tube (at least ten times longer than median diameter), strongly curved apically into relatively short apical segment.

Types. 1 male, 2 females. April to May.

MEXICO. Chiapas: 28 miles west Cintalapa, 6. V.1962. L. Stange (1f, FSCA). Puebla: 3 miles east Izucar de Matamoras, 1.IV.1962, L. Stange (1m, 2f, FSCA).

Discussion. The lack of long white setae laterally on the pronotum and presence of elongate white bristles on the forecoxa distinguishes this species in the group. Also, the short hindtibial spurs which do not reach apex of tarsomere II is an important discriminating character. The male genitalia are diagnostic.

Etymology. This species is dedicated to Phillip Anthony Adams, noted American Neuropterist.

Figures

Figures 42–46. Purenleon adamsi Miller and Stange, adult. 42) head and thorax; 43) lateral view; 44) wings; 45) male genitalia; 46) female terminalia, ventral view.