24 Psyche [Vol. 93 
Specimens Examined. 15 9 and 47 $\ PERU, Lambayeque 
Province, 33 km E. Olmos, Ruta a Jaen, 23-VII-1975, C. Porter, L. 
Stange; 1 km S. Lambayeque, 24-27-VII-1975, C. Porter, L. Stange; 
La Libertad Province, Laredo nr. Trujillo, 7-8-VII-1974, C. Porter, 
L. Stange; Simbal nr. Trujillo, 4-7-VII-1974, C. Porter, L. Stange; 
Lima Province, Cupiche, 10 km E. Chosica, 25-VI-2-VII-1974, C. 
Porter, L. Stange; Palle nr. Chosica, 17-VII-1974, C. Porter, L. 
Stange; San Geronimo nr. Chosica, 28-VI-5-VII-1976, C. Porter, 
C. Calmbacher; nr. Surco on Carretera Central at km 59, 30-VI- 
1976, C. Porter, C. Calmbacher. 
Relationships. This Peruvian Coastal Desert endemic differs 
only in minor chromatic and structural features from the other 
South and North American Compsocryptus. It seems closely related 
to the Argentine C. melanostigma (Brulle) but may be distin- 
guished by the following characters: (1). Fore wing yellow with two 
narrow brown cross bands and with brown on apex (vs. dark brown 
with a broad median yellow cross band and a large subapical yellow 
blotch), 2. Second abscissa of radius 0.9- 1.0 as long as 1st intercubi- 
tus (vs. 1.2- 1.5 as long), 3. Female mesopleuron usually with some 
strong longitudinal wrinkling (vs. puncto-reticulate), 4. Male 
mesoscutum with punctures mostly separated by 1. 0-2.0 their 
diameters (vs. 2.0 or more their diameters) and 5. Male flagellum 
with tyloids extending to segments 19-20 (vs. 21-23). 
Field Notes. Compsocryptus fuscofasciatus has been reported 
only from the northern and central Peruvian Coastal Desert 
between Lima and Piura. Here, it frequents most well watered habi- 
tats between sealevel and 1500 m. I have collected it along rivers and 
irrigation ditches in arid country as well as in orchards and 
degraded cloud forest. Like other Compsocryptus , this species most 
often occurs near or on the ground in exposed, disturbed, weedy or 
grassy places. 
2. Compsocryptus melanostigma (Brulle) 
(Fig. 1,3,5) 
Cryptus melanostigma Brulle, 1846. In Lepeletier: Histoire naturelle des insectes. 
Hymenopteres 4:191. Lectotype $: Brasil: “Prov. de Misiones” (Paris 
Museum). 
Cryptus opaco-rufus Taschenberg, 1876. Ztschr. f. die Gesam. Natuw. Halle 48:64. 
Lectotype $: (Brasil): Parana (Halle). 
