238 SUPPLEMENT, 



6. Ptecticus maculatus, sp. n. 



5 . Front and face light yellow, the small ocellar spot black ; the lower vesicular portion of the front a little 

 lighter-coloured. Antennae light yellow, the third joint reddish-yellow, truncate at the tip. Thorax 

 yellow or greenish-yeliow throughout, the mesonotum scarcely darker. Abdomen light yellow, the second, 

 third, fourth, and fifth segments each with two narrow, transverse, black spots, narrowly separated. Legs 

 yellow ; hind tibiae and tarsi and the four distal joints of the other tarsi (excepting the basal portion of 

 the second joint) black. Wings yellowish-hyaline ; the furcation of the second and third veins is at the 

 junction of the anterior cross-vein ; ultimate section of the third vein as long as the penultimate section. 

 Length 14 millim. 



Bab. Mexico, N. Yucatan (Gaumer). 



One specimen. Another female example, from Tierra Coloracla in Guerrero 

 {H. II. Smith), is only 10 millim. in length, and has the hind tibiae yellow and the 

 hind metatarsi reddish-brown ; it agrees, however, so well in other respects (the meso- 

 notum may be darker above) that I believe it belongs to the same species. 



7. Ptecticus concinnus, sp. n. 



c? 2 . Very like P. figlinus, but the front of the female without the black on the sides ; the black bands of 

 the abdomen are narrower and do not reach the lateral margins, that of the second segment sometimes 

 largely obsolete ; the femora are less thickened ; and the hind metatarsi are slender. The hind tarsi in 

 the female specimens are brown and black throughout, the distal joints darker in colour ; in the males 

 the metatarsi are redder. The forceps of the male hypopygium are less slender and long, their length 

 only about equalling the distance between them at the base, while in P. figlinus they are more curved 

 and touch each other at the tip. The last section of the third vein is relatively shorter. Length 

 10-12 millim. 



Ilab. Mexico, Amula, Omilteme, and Xucumanatlan, all in Guerrero, 6000 to 8000 

 feet (H. H. Smith). 



Two males and four females. 



ANALCOCERUS, 



Analcocerus, Loew, Verb., zool.-bot. Ges. Wien, 1855, p. 10. 



l. Analcocerus hortulanus, sp. n. (Tab. I v. fig. 10, $ .) 



$ . Antennae elongate, distinctly greater in length than the width of the head; first two joints elongate, the 

 second only a little shorter than the first ; third joint slender, composed of six closely united annuli, all 

 of which are of nearly equal length, a little longer than broad, the last one obtusely pointed and wholly 

 without pile or terminal arista. Front from the ocelli to the root of the antennas rather more than twice 

 as long as wide ; convex, the median transverse groove feebly marked, the antennae not situated upon a 

 prominence ; yellow, with a transverse, black, diamond-shaped spot below, which is narrowly connected 

 with the black upon which the ocelli are situated ; the space behind the ocelli to the edge of the occiput, 

 and that between the lateral grooves from the upper angles of the eyes, is black. Face, cheeks, and 

 occiput black, the former with white pile ; the moderately broad occipital orbits light yellow. Mesonotum 

 black, shining, punctulate ; in the middle with two narrow yellow stripes, turned outward in front to 

 connect with the yellow humeri ; on the sides in front of the suture a triangular yellow spot, and another 

 of about the same size situated on and before the post-alar callosities ; the prominent prothorax with a 

 yellow spot above. Scutellum greenish-yellow, with two rather stout black spines. Pleurse black, with 

 yellow spots. Metanotum black. Abdomen nearly opaque black, with the narrow lateral margins, and a 



